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EPM 9000 Advanced Power Quality Metering

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1. 5 1 COPING T 1 16 CURRENT 2 4 SPECIFICATIONS 1 12 D DATA LOGGER 10155 1 14 DELTA CONNECTION DOCK err 2 12 M 2 12 2 13 DEMAND background block example predictive window DDIAESINCEUINCTIO Nette tree teet ep Dat TRE DIAL OUT FUNCTION teta teet dut itte ette Rte eae DISPLAY OVENI EWN aranin EAA E ADEM EM DM M MEE DU 1 6 E EN 50160 EDICKER hp eee ib a ant HER et ean qs 1 7 ENERGY background cote ETATE DID OE SIRE 2 15 2 18 ETHERNET m 5 17 oil C e EE Na ERa 5 17 EXTERNAL a S te iei E OARA i ii 1 11 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 INDEX F Wei H 1 4 1 7 FRONT VIEW eti AN tale 1 1 G CRON DINO E 3 6 INPUT OUTPUT MODULES Connection WIG eiue 5 10
2. 7 25 CC 6690 0660 0060 000 18 41 cm 6 74 17 11 cm A Y AL k 3 40 J 8 63 cm 4 x 0 221 5 61 mm through slot lt for 10 screw FIGURE 3 1 Mounting dimensions standard meter EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 1 CHAPTER 3 INSTALLATION 3 1 2 Mounting the External LED Display The EPM 9450 9650 LED displays mount using a standard ANSI C39 1 drill plan Secure the four mounting studs to the back of the panel with the supplied nuts Six feet of RS485 communication power cable harness is supplied Allow for at least a 1 25 inch 3 17cm diameter hole in the back for the cable harness See Chapter 5 for communication and power supply details The cable harness brings power to the display from the EPM 9450 9650 meter which supplies 15 to 20V DC The LED display can draw up to 500 mA in display test mode FRONT VIEW SIDE VIEW 4 38 11 12 cm mM 0 75 1 438 19 05 mm 3 65 cm 4 x 0 198 5 02 mm 4 4 00 10 16 cm 3 38 8 58 cm ANSI C39 1 DRILL PLAN 1 687 4 28 cm FIGURE 3 2 External LED Display Mounting 3 1 5 Mounting the External LCD Display The LCD touch screen display mounts easily with the included bezel and a gasket Since the display type is LCD the viewing angle must be considered when mounting Install the LCD display at a height and angle that make it easy for the opera
3. IEC 1000 4 5 s ipm IEC 868 IEC 61000 4 15 APPROVALS ISO manufactured to an ISO9001 registered program CEE conforms to EN 55011 EN 50082 UL recognized under E142921 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 2 Electrical Background 2 1 Overview 2 1 1 The EPM 9450 9650 System The EPM 9450 9650 combines high end revenue metering with sophisticated power quality analysis Its advanced monitoring capabilities provide detailed and precise pictures of any metered point within a distribution network The external displays are in Chapter 4 Extensive input output capability is available in conjunction with all metering functions The optional GE Communicator EXT software allows a user to poll and gather data from multiple meters installed at local or remote locations refer to the GE Communicator EXT instruction manual for details On board mass memory enables the EPM 9450 9650 to retrieve and store multiple logs The EPM 9450 9650 meter with internal modem lor network option connects to a PC via standard phone line or Modbus TCP and a daisy chain of meters via an RS485 connection See Chapter 5 for details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 21 2 2 CHAPTER 2 ELECTRICAL BACKGROUND Computer or SCADA system Modem gat
4. 2 21 WAVEFORM 2 22 POWER DUALITY iii ii dati dta RON 2 23 DESCRIPTION instr tec eet eec ted a ec Id 2 23 HARDWARE INSTALLATION 3 1 MOUNTING THE EPM 9450 9650 3 1 MOUNTING THE EXTERNAL LED DISPLAY tenens 3 2 MOUNTING EXTERNAL LCD DISPLAY 5 2 INPUT OUTPUT MODULE MOUNTING 3 4 ELECTRICAL INSTALLATION anciens 6 OVERVIEW MMC ES 3 6 VOLTAGE AND CURRENT CONNECTIONS essessessssssssesssesssecsseesseceseceseceseeesecesecssesesseesseesess 3 6 ISOLATING A CT CONNECTION REVERSAL ccssssssssssesssessssssncsssesssesssesssesssecssessseesseesseesse 5 7 INSTRUMENT POWER CONNECTIONS sse tentent ttt tennis 3 7 WIRING 5 2 8 INPUT OUTPUT MODULE WIRING 5 17 WIRING THE EXTERNAL DISPLAY UNITS 5 19 HIGH SPEED INPUTS WIRING narret ts 3 21 PRIGSB WIRING RD EK V cate 3 21 USING THE EXTERNAL LED MODULE incosasruriareiarasdresorerorecaracatararorce Mei DYNAMIC READINGS M ODE dini boire tiec ec RR INFORMATION DISPLAY FEATURES MODE ssseeetetttt tte tente tenerte teniente ttti USING THE EXTERNAL LCD MODULE DESCRIPTION ctr etes etse an ED E GENERAL RAGE T VOLTS PAGES iii
5. ERE GilTienslOrlS aedes pitt si ENEE order codes kierelileelsnfwee m M 1 12 NIFI css co MM NA UL AC MD DE 3 4 3 17 INSTALLATION electhicdl ct M LESS 3 6 m 3 1 inp t outpu t modules x5 mette en etd 3 18 INTRODUCTION zeen 1 1 IRIG 3 21 K FACTOR ce 2 6 KYZ OUTPUTS 1 13 WINO creer EDD DATAE oe Poe eternal rn sete renee tetera 3 21 M MODEM CONNEC Ninsa i ne east 5 14 SS CHI UO EE 5 14 eigeel go e foa ole PARATENE E EE 5 15 MOUNTING d 3 1 ORDER CODES rarae aneao ettaneao damen ew EROA OTETO RETE 1 10 P PHASE FING ARI MR 2 5 POWER Jefe CT OUI E M PE 2 15 ina 2 4 2 5 POWER FACTOR background calculations POWER QUALITY POWER SUPPLY l 2 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE INDEX cile D teh AN ace 1 11 3 17 R Hausdiizgc 1 4 REVISION qo v 6 1 RJ 5 14 S SPECIFICATION c R 1 1
6. N FIGURE 3 10 Four wire Wye 3 element with 3 Pts and 3 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The wiring diagram for the three wire two element open delta connection with two PTs and three CTs is shown below NOTE LZ Actual installation procedures materials equipment and connections must conform to applicable codes and standards IMPORT Ched 1 J 9 000 000 000 000 EXPORT EPM 9000 series meter LINE CT SHORTING SWITCH OR TEST BLOCK HI In oh o D 9 2h D A R CTs m _ SWITCHGEAR CHASSIS GROUND PTs SUPPLY POWER INPUT C B A DEPENDENT ON EQUIPPED POWER SUPPLY OPTION FIGURE 3 11 Three wire 2 element Open Delta with 2 Pts and 3 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The wiring diagram for the three wire two element open delta connection with two PTs and two CTs is shown below y Actual installation procedures materials equipment and connections must conform to l applicable codes and standards NOTE LINE LL M GNI O 5s au 9 o J I o oz ILI SWI Me PTs SUPPLY POWER INPUT L DEPENDENT ON EQUIPPED POWER SUPPLY OPTION C BA LOAD FIGURE 3 12 Three wire 2 element Open Delta with 2 Pts and 2 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 13 CHAPTER 3 INSTALLAT
7. SUPPLY POWER L DEPENDENT ON EQUIPPED POWER SUPPLY OPTION N C B A FIGURE 3 15 Four wire 3 element Grounded Delta with 4 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION Input Output Module Wiring The EPM 9450 9650 can supply power for up to four input output modules Any additional 3 2 6 modules will require an additional power supply such as the PSIO The wiring is the same for all modules Auxiliary power is supplied through pins 4 and 5 Connection through SHIELD B and A to the EPM 9000 port 4 FIGURE 3 16 Input Output Pin Detail Input output modules must use the EPM 9450 9650 port 3 or 4 Six feet of RS485 cable harness is supplied Attach one end of the cable to the port connectors may not be supplied insert the other end into the communication pins of the module RS485 side port see details below LEDs AM B S V CC Male side port on NP M NL NUN input output module External power source PSIO R forruns typically longer than 500 feet EPM 9000 port 3 or 4 556 S AM BJ FIGURE 3 17 EPM 9450 9650 Connected to Input Output Module EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The following procedure describes how the attach multiple input output modules for to the GE Multilin PSIO unit Each input output module in a group
8. t CURRENT ime Id ref es pm E EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 COMMUNICATIONS 6 MISCELLANEOUS TABLE OF CONTENTS REAL TIME POWER PAGE DEMAND POWER PAGE T ENERGY RAGE ur a LEM LI M M LC ALS TIME OF USE PAGES FUCKER PAGES ecd dr eet te seu bert p e trece Road BLISS ccc L PHASORS PAGE WAVEFORM PAGES SPECTRUM PAGES da TRENDING PAGES LOG STATUS PAGE ise tt let n aaa a es Nd RI T LI ET eM MI SETTINGS PAGES icis citi ie i E P re REA NAVIGATIONAL MAP TIME OF USE TOU DESCRIPTION em TIMEFOF WSE CALENDAR iie ctt tette t EU ARRA ER RU RR TERR 4 27 PRIOR SEASON AND MONTH ccsssssssssssssssssssesssecssscssssssscssecsussssscsnscssecesseeseceseeesecesecesscesees 4 27 UPDATING REPLACING AND RETRIEVING TOU 4 28 DAYLIGHT SAVINGS AND 4 28 TRANSFORMER LOSS COMPENSATION ccscstosritatotn ED IStOtai tto ID mea 4 31 INTRODUCTION uere meet tet tercia 4 31 TRANSFORMER LOSS COMPENSATION IN THE EPM 9450 9650 4 33 LOSS COMPENSATION IN THREE ELEMENT INSTALLATIONS 4 33 TRANSFORMER LOSS COMPENSATION WORKSHEET
9. 4 4 2 Transformer Loss Compensation in the EPM 9450 9650 The EPM 9450 9650 meter provides compensation for active and reactive power quantities by performing the numerical calculations using factors derived by clicking the TLC Calculator button on the Transformer Loss screen of the device profile or by manually figuring values refer to Transformer Loss Compensation Worksheet on page 4 34 Enter the derived values in the Device Profile screen of the GE Communicator EXT software values will automatically be entered from the TLC calculator button The GE Communicator EXT software can enable transformer loss compensation for losses due to copper and iron individually or simultaneously Losses can either be added to or subtracted from measured readings Loss compensation values must be calculated based on the meter installation As a result transformer loss values must be normalized to the meter by converting the base voltage and current and taking into account the number of elements used in the metering installation For three element meters the installation must be normalized to the phase to neutral voltage and the phase current in two element meters the installation must be normalized to the phase to phase voltage and the phase current This process is described in the following sections 4 4 3 Loss Compensation in Three Element Installations Loss compensation is based on the loss and impedance values provided on the transformer manufact
10. EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 43 7 44 CHAPTER 7 GE COMMUNICATOR EXT 7 5 2 ElectroLogic Relay Control To edit a Device Profile s GE Relay settings gt From the Device Profile screen see section 3 2 click on the button or double click on the GE Relay line He 55 Limits 1 EE ojrlectrologic Relay Control EX 5 PQ Thresholds Waveform Recording The following screen appears This screen displays the current Device Profile s settings Device Profile Electro Logic Relay Control Digital Output Module 1 Relay 1 ae Seconds Set Delay b z Reset Seconds 9 Limits Se Digital Inputs 01 0 1 Second Volts AN Clear METTRE Internal Input 01 x shoted E ree gt To assign an item to the Relay Logic Tree select an Input for the tree by clicking on a bullet next to numbers 1 through 8 Choose Limits or Digital Inputs by clicking on the bullet in front of the word Select the Limit or Input you want to assign to the Relay Logic Tree Input you selected Press Set to confirm your selection The software will place the selection in the appropriate window in the screen After you have assigned all the Relay Logic Inputs select the gates that will be used to combine the logic to trigger the relay To select a gate click on the gate or choose one from the pulldown menu below th
11. LECTROLOGIG RELAY CONTROL 1 caricias tette ettet eter cip c Q THRESHOLDS WAVEFORM RECORDING EN 50160 FUCKER iit ctt rtt m iter Eie eda SQUARED T AND V SQUARED T THRESHOLDS sscsssesssssssesssesesesesssessserssesssesssenssenssees HIGHSPEED INPUTS rete ted te eie TRENDING PROFILE SETTINGS AND LOAD PROFILE RECORDING PROGRAMMING THE TRENDING LOG TIME 5 ae PROGRAMMING THE TRENDING SETUP FOR HISTORICAL LOGS 1 AND 2 7 51 PAD MISSING RECORDS FOR HISTORICAL LOGS sss 7 53 EXTERNAL DEVICES SET AND RETRIEVE METER TIME RESET METER INFORMATION MANUAL WAVEFORM CAPTURE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 1 Overview 1 1 Introduction 1 1 1 Description The EPM 9000 Advanced Power Quality Metering System combines high end revenue metering with sophisticated power quality analysis Its advanced monitoring capabilities provide detailed and precise pictures of any metered point within a distribution network A variety of displays and extensive input output capability is available in conjunction with all metering functions The optional GE Communicator EXT software allows a user to poll and gather data from multiple meter
12. Reset All Logs Revenue Power Quality Etc Reset Historical Log 1 Revenue Log Reset Historical Log 2 Revenue Log Reset Sequence of Events Log Reset Digital Input Log i Reset Digital Output Log Reset Flicker Log Reset Waveform Log Reset PQ Log Reset Max Min and Demand Reset Hour Squared T and V Squared T Counters Reset Internal Input Accumulations and Aggregations Reset Internal KYZ Out Accumulations i Reset Total Average Power Factor Reset Cumulative Demand Registers 7 56 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Reset EPM 9650 Parameters ENT aa Demands i Reset Time of Use Current Month Registers Reset Time of Use Active Registers gt Click on the box beside the value s you would like to reset gt Click OK 63 If you click Reset Logs a warning will appear asking you if you want to Save Connected y Device Settings Click on the settings you would like to save then proceed with the em Update If you do not save the settings they will be overwritten For each box you select a window will appear which states that the Reset is Completed Click OK The reset is completed You can password protect this feature by enabling the Password feature of the Meter See Chapter 12 of the GE Communicator EXT User Guide for details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE CO
13. T 2 aJ a o o c 2 uo 3 u 7 T9 occo 6 V V S B A V V S B A V V S B A V V S B A RS232 RS485 Port 1 Port 2 Port 3 Port 4 RS2320rRS485 normally slave Modem gateway FIGURE 5 4 RS485 Connection Overview EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE Input output module A B S V V R 1200 4 4 l j j j j j j j j j l l l l l l j a 876543 21C High speed inputs IRIG B 5 5 CHAPTER 5 COMMUNICATIONS 5 2 RS485 Serial Connections 5 2 1 Description The RS485 shield is not an earth ground connection the shield must be connected to earth ground at one point Do not connect the shield to ground at multiple points as it interferes with communication For the A and B two wire RS485 communication terminals connect the A terminal of the meter to the positive terminal of the device Likewise connect the B terminal of the meter to the negative terminal of the device Connect to of Connect to of EPM 9000 2 wire RS485 port the next device the next device Twisted pair shielded cable FIGURE 5 5 Two wire RS485 Port Detail For all RS485 connections 5 6 Use a shielded twisted pair cable 22 AWG 0 33 or larger grounding the shield at one end only Establish point to point configurati
14. gt Update the device profile to save the new settings Device Profile Time Settings Zone Descriptor Daylight Savings Information Auto DST Y Line Synchronization Enable ves Frequency ez Before connection ensure that the date on the satellite clock is correct or within 2 months of the actual date This provides the correct year for the clock the GPS does not supply the year EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION Connect the positive terminal of the meter to the positive terminal of the signal generating device gt Likewise connect the negative terminal of the meter to the negative terminal of the signal generating device The most common source of problems with IRIG B is a reversal of the positive and negative wires Try reversing the wires if problems occur EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 23 CHAPTER 3 INSTALLATION EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 4 Operating Instructions 4 1 Using the External LED Module 4 1 1 Modes The external LED display has three modes Dynamic readings mode section 4 1 2 e Information mode section 4 1 3 e Display features mode section 4 1 4 Each mode is divided into groups Most groups are further broken down into
15. 1 9600 1 Modbus RTU 1 57600N 1 Modbus RTU This screen displays the current Device Profile s settings for the meter s four Communications Ports Address Baud Rate Data Bits Parity Stop Bits Transmit Delay Communication Protocol Network Option and Internal Modem Option You may use a connected External Display to learn the current baud rate address and communication protocol of each meter port See EPM 9450 9650 Installation and Operation Manual for details e Port 2 settings are ignored when the Internal Network and Internal Modem options are installed and the address is 1 Port 3 is factory set to the External Display s baud rate of 9600 e The External Display only communicates to Address 1 You must use Port 3 or Port 4 to connect any external devices such as an External Output module e Port 3 and Port 4 are Slave Output Module selectable e For all External Output Devices set the Communication Protocol to Modbus RTU EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 11 CHAPTER 7 GE COMMUNICATOR EXT Double click on any of the settings Serial Port 1 The Communications Settings screen appears Make changes to this screen according to the requirements of your application by clicking on the box or pull down menu of any of the following settings Address Assign an address to each port to communicate with other devices Multiple meters on an RS 485 bus must each have a unique ad
16. Chapter 6 Miscellaneous Table 6 1 Release Dates Publication GE Part Number EPM 9450 9650 Release Date Revision GEK 113281 1601 0159 A1 1 0x 22 December 2005 GEK 113281A 1601 0159 A2 1 0x 24 May 2006 GEK 113281B 1601 0159 A3 1 0x 1 May 2007 GEK 113281C 1601 0159 A4 1 0x 22 August 2008 Table 6 2 Revisions A2 to A3 Section Description General Manual revised to A4 Ch 1 5 7 Adjustments to Ethernet and other communications modes EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 6 1 6 2 6 2 Warranty CHAPTER 6 MISCELLANEOUS GE Multilin Warranty General Electric Multilin GE Multilin warrants each device it manufactures to be free from defects in material and workmanship under normal use and service for a period of 24 months from date of shipment from factory In the event of a failure covered by warranty GE Multilin will undertake to repair or replace the device providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory Repairs or replacement under warranty will be made without charge Warranty shall not apply to any device which has been subject to misuse negligence accident incorrect installation or use not in accordance with instructions nor any unit that has been altered outside a GE Multilin authorized factory outlet GE Multilin is n
17. FIGURE 4 34 Time Settings Window To set demand intervals gt Select the Revenue Energy Settings gt Demand Integration Intervals item from the device profile and set the desired intervals gt Click OK when complete EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS Device Profile EXT Communications i Device Profile Demand Integration FIGURE 4 35 Demand Integration Window To set the cumulative demand type Select the Revenue amp Energy Settings gt Cumulative Demand Type item from the device profile Select Block Window or Rolling Window gt Click OK when complete EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 29 CHAPTER 4 OPERATING INSTRUCTIONS Device Profile Block Averaging Time Interval Window Oh 2m 0s Rolling Averaging Sub Interval Window Oh 15m Os Rolling Sub Intervals 4 Predictive Rolling Window Average 100 00 EX5 Internal KYZ 6 Display Configuration Cumulative Demand Type EX5 CT and PT Compens Rolling Window EXT Transformer Line Lo Block Window EX5 Cold Load Pickup EX5 Cumulative Demand Type Block Window E Ez EX5 Energy Pulses and Accumulations in the Interval Pulse Accumulations Power Quality and Alarm Settings EXT Trending Profile Settings Update Device Ext Device Profile Editor FIGURE 4 36
18. 4 34 COMMUNICATIONS WIRING do ide pin te Eni del nite tie p peto eibi 5 1 OVERVIEW niece dte Ro de tii Reds 5 1 SOME POR M 5 2 RJ45 NETWORK CONNECTION NEL RS495 5 4 Bates SERIAL CONNECTIONS da actearctscen e eren ead ad om tare ser 5 6 DESCRIPTION P PORE SH 5 6 CONNECTION TO AN RS485 MASTER u scssssscsssssssssssscssscsssssescssscsescsesssescsescsesssesesssesess 5 8 CONNECTION TO OUTPUT MODULES VIA RS485 5 10 LINKING MULTIPLE DEVICES accetti reto idee ttr ere erecto er aA 5 11 REMOTE COMMUNICATIONS OVER TELEPHONE 5 5 12 RJ11 MODEM CONNECTIONS sis x is 5 14 DESCRIPTION EE 5 14 HARDWARE CONNECTION rro tete E TR ER HERR RR 5 14 rer due erret rmn iden 5 14 DIAt OUT FUNCTION aen pa cum attese erect puente ru ene 5 15 PROGRAMMING MODEMS FOR REMOTE COMMUNICATIONS 5 15 RJ45 ETHERNET CONNECTIONS OVERVIEW HARDWARE CONNECTION taceat eter reete cheer c d REVISION HISTORY cusan DE RUE AR pub eds etate e app renati ec asbsgol 6 1 RELEASE DATES tta ut b e a ta us dcc 6 1 WARRANTY imb tb tdi d pd 6 2 GE MUETIEIN WARRANTY iter cei rit tom a tre RR 6 2 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE
19. Click Reset All Logs Click OK See section 7 25 7 3 4 Time Settings To Edit a Device Profile s Time Settings 45 Time Settings Time Zone ZD 5 0 DST Enabled True Using Auto DST DST Start Auto DST End Auto Line Synchronization Disabled From the Device Profile screen see see section 7 2 click on the button in front of General Settings Double click on the Time Settings line The above submenu appears DST Daylight Savings Time wv NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 13 x NOTE CHAPTER 7 GE COMMUNICATOR EXT Double click on any of the programmable settings The Time Settings screen appears Device Profile Time Settings Zone Descriptor Daylight Savings Information Auto DST Me Line Synchronization Enable Frequency oz Make changes to this screen according to the requirements of your application Zone Descriptor A Zone Descriptor sets the Time Zone for the EPM Monitor y 0 Greenwich Mean Time See the chart below for the Zone Descriptor for your Time Zone Table 7 1 Greenwich Mean Time GMT Table Dublin London 1 00 Azores 11 00 Brussels Paris Warsaw 2 00 Mid Atlantic 2 00 Athens Cairo Helsinki 3 00 Buenos Aires Georgetown 43 00 Baghdad Kuwait Moscow Teheran 4 00 Atlantic Time Canada 4 00 Kabul Baku Santiago 5 00 Eastern Time US amp Canada 5 00 Karachi Li
20. Cumulative Demand Type Window EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS 4 4 Transformer Loss Compensation 4 4 1 Introduction The Edison Electric Institute s Handbook for Electricity Metering Ninth Edition defines loss compensation as A means for correcting the reading of a meter when the metering point and point of service are physically separated resulting in measurable losses including I R losses in conductors and transformers and iron core losses These losses may be added to or subtracted from the meter registration Loss compensation may be used in any instance where the physical location of the meter does not match the electrical location where change of ownership occurs Most often this appears when meters are connected on the low voltage side of power transformers when the actual ownership change occurs on the high voltage side of the transformer This condition is shown below ownership change M T T FIGURE 4 37 Low Voltage Metering Installation Requiring Loss Compensation It is generally less expensive to install metering equipment on the low voltage side of a transformer and in some conditions other limitations may also impose the requirement of low side metering even though the actual ownership change occurs on the high voltage side The need for loss compensated metering may also exist when the ownership changes several miles along a transmission l
21. Line Sync is disabled if a GPS signal is present How Time is Adjusted After the clock is synced to the line the meter periodically checks the cumulative difference between the real time clock in cycles and the line cycle count If the absolute difference is greater than 50 60 cycles the clock is adjusted 1 second accordingly Tosetthe meter s on board clock use Set Meter Time from the Tools Menu gt When all changes are entered click OK to return to the main Device Profile screen For these changes to take effect you must click on the Update Device button This sends the new profile to the meter EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 5 5 Labels v NOTE NOTE CHAPTER 7 GE COMMUNICATOR EXT Labels are user defined names for the meter the Auxiliary Voltage terminal and the N Measured terminal It is important to label the meter under Meter Designation with a Unique Name because that label will become the name of the file for any logs retrieved from that meter Duplicate meter designations interfere with retrieved log databases gt From the Device Profile screen section 3 2 click on the button beside General Settings gt Double click on the Labels line This submenu appears EX5 Labels Meter Designation EPM 9800 VAUX Vaux IN Measured Inm Power Direction Quadrant 1 4 Delivered and Quadrant 3 Received Power Factor Displa
22. The high speed inputs can be used in multiple ways 1 Byattaching the KYZ pulse outputs from other meters for pulse counting and totalizing 2 Byattaching status contacts from relays breakers or other devices for status or waveform initiation The high speed inputs can be used with either dry or wet field contacts For wet contacts the common rides on a unit generated 15 V DC No user programming is necessary to use either wet or dry field contacts Optional 120 V DC maximum for wet contacts FIGURE 3 21 High speed Inputs Connection 3 2 9 IRIG B Wiring IRIG B is a standard time code format that synchronizes event time stamping to within 1 ms An IRIG B signal generating device connected to the GPS satellite system will synchronize EPM 9450 9650 meters located at different geographic locations The meter utilizes an unmodulated signal from a satellite controlled clock For details on installation refer to the instruction manual for the satellite controlled clock in use EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 21 CHAPTER 3 INSTALLATION GPS satellite connection IRIG B port IRIG B time signal generating device FIGURE 3 22 IRIG B Connection Use the following procedure to install IRIG B gt Set the EPM 9450 9650 time settings from the GE Communicator EXT software by selecting the Time Settings item in the device profile gt Set the time zone and daylight savings time
23. USER GUIDE 1 3 1 4 CHAPTER 1 OVERVIEW Independent CBEMA log plotting The EPM 9450 9650 stores an independent CBEMA log for magnitude and duration of voltage events In this manner the user can quickly view total surges total sags and average duration without having to retrieve waveform information Phasor analysis The monitor reads a phase angle analysis between the voltage and current channels allowing for efficiency and system integrity analysis Phasor Diagram Frequency 60 007 Hz 270 A 000 06 210 MN 3201197 1B 5 0030 Angle B 39 85 Lead WatB 461 4143 VAB 600 9576 120 d er 90 9 13 1999 BRE EI 244 Polling Device 1 cov erin Hep RETA i FIGURE 1 3 System Integrity Analysis Reporting Harmonics analysis The EPM 9450 9650 provides users with the ability to view harmonics the discrete frequencies that lie between the harmonics of the power frequency voltage and current Frequencies can now be observed which are not an integer multiple of the fundamental 1 2 4 Advanced Revenue Metering Capability The EPM 9450 9650 is a full four quadrant power meter with a 0 04 watt hour accuracy Measurements include real energy kWh reactive energy kvarh and apparent energy kVAh It measures instantaneous power and provides multiple simultaneous demand measurements including time stamped maximum and minimum readings Accuracy in billing measurements Dual 16 bit analog to digita
24. set the CT and PT ratios Set the Limits and Waveform Full Scales Caution Changing the CT amp PT Ratios will reset the meter and clear all Logs and Accumulations iy Note on Sampling Rate nori A higher sampling rate allows for transients to be monitored Generally users will set the meter to 128 samples per cycle for this purpose Lower sampling rates have advantages because they allow you to record more cycles of information per event screen Low sampling rates are better for long duration events like motor starts or distribution faults The meter enables users to tailor the recording for both these applications For more information on Sampling Rate see the graph later in this section EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 45 7 46 wv NOTE v NOTE CHAPTER 7 GE COMMUNICATOR EXT gt From the Device Profile screen see section 7 2 double click on the PQ Thresholds Waveform Recording line The Waveform CBEMA Profile screen appears Device Profile Waveform CBEMA Profile Hookup Wye SSS 8888 Kuss Assigned to Sampling Rate 128 Samples Cycle 60Hz Waveform PQ Trigger Waveform PQ Trigger Waveform PQ Trigger Waveform PQ Trigger PO Teor Total Capture Windows Per Event Waveform PQ Trigger A limit value of 100 e Waveform PQ Trigger 1 8 Cycles Captured Per Window 60Hz Waveform PQ Trigger Software Triggers To s
25. B C VAR A 42 1 One Second One Second VAR A B C VARA 42 2 One Second One Second VAR A B C VAR A 43 0 One Second VAR Total VAR Total 44 0 One Second One Second Watts A B C Watts A 44 1 One Second One Second Watts A B C Watts B 44 2 One Second One Second Watts A B C Watts C 45 0 One Second Watts Total Watts Tota 46 0 One Second Frequency Frequency 47 0 One Second Power Factor A B C PF A 47 1 One Second Power Factor A B C PF B 47 2 One Second Power Factor A B C PF C 48 0 One Second Power Factor Total PF Total 49 0 One Second Imbalance Voltage 49 1 One Second Imbalance Current 216 2 Block Window Average Watt 217 3 Maximum Block Window Positive Watt 217 4 Maximum Block Window Negative Watt 218 3 Minimum Block Window Positive Watt 218 4 Minimum Block Window Negative Watt 194 4 Phase A N Phase A B Voltage THD 195 0 Phase B N Phase B C Voltage THD EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Table 7 2 Most Frequently Used Custom Modbus Readings 196 0 Phase C Phase C A Voltage THD 197 0 Phase A Current THD 198 0 Phase B Current THD 199 0 Phase C Current THD EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 4 Revenue and Energy Settings 7 4 44 Demand Integration Intervals From the Device Profile screen see section 7 2 click on the but
26. Click OK to exit the screen and return to the GE Communicastor EXT main screen 7 5 6 High Speed Inputs This section of the Device Profile enables you to label the eight High Speed Inputs Use of this storage field allows a user to label the inputs so that when the data is later analyzed the user knows the source of the status change From the Device Profile screen see section 3 2 click on the button or double click on the Digital Inputs line and double click on High Speed Inputs The following submenu appears Input 1 NAME HSI Input 1 ASSIGNED TO Waveform PQ Trigger Input 2 NAME HSI Input 2 ASSIGNED TO Waveform PQ Trigger Input 83 NAME HSI Input 3 ASSIGNED TO Waveform PQ Trigger Input 4 NAME HSI Input 4 ASSIGNED TO Waveform PQ Trigger Input 5 NAME HSI Input 5 ASSIGNED TO Waveform PQ Trigger EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 49 CHAPTER 7 GE COMMUNICATOR EXT Double click on High Speed Inputs The following submenu appears 2 HSI Input2 SSI input 3 4 HSl Input 4 5 HSI Input 6 HSI Input 6 7 HSi Input 8 HSI input Double click on the input you would like to label Enter text in each field gt Click OK to return to the main Device Profile screen Click Update Device Profile to send the new profile to the meter 7 5 7 Trending Profile Settings and Load Profile Recording This section of the De
27. Communications STANDARD programmable parity and stop bits POLES metet tege 4 communications ports 2 client ports 2 selectable master client ports POLO COIS ies Modbus ASCII Modbus RTU DNP 3 0 level 1 for EPM 9450 DNP 3 0 level 2 for EPM 9650 Medid 2 wire RS485 dtd Fai eee eee ette up to 56 kbps read write setpoints read actual values OPTIONAL MOD entane 56K modem with dial out capabilities EWN cement internal 10 100Base T RJ45 running Modbus TCP protocol PIOLOCOIS oeste etate Modbus TCP 1 5 8 Physical ENVIRONMENTAL up to 9596 non condensing 40 to 80 C ambient metal case stainless steel SHIPPING WelGlib tee RE titius approximately 12 Ibs 5 4 kg Dimensions DOX s 16 x 13 x 11 40 64 cm x 33 02 cm x 29 74 cm 1 5 9 Compliance TYPE TESTS EMISSIONS 55011 cen EN 50082 Communications omiin ANSI C12 20 class 0 2 and IEC 687 ISolGitiOh sasn ERR RERO Ue 2500 V AC at 60 Hz optically isolated to 2500 V DC 100 A for 10 seconds 300 A for 1 second ANSI IEEE C37 90 1 ANSI C62 41 IEC 1000 4 2 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 15 CHAPTER 1 OVERVIEW Radiated IEC 1000 4 3 Fast transient IEC 1000 4 4 Surge
28. Reading FIGURE 4 1 Dynamic Readings Navigation Map Information Mode Use the MODE button to access the information mode Use the UP DOWN arrows to navigate from group to group within this mode See FIGURE 4 2 Information Mode Navigation Map on page 4 5 for details Group 1 device time e Meter time Group 2 communication settings Use the arrow keys to access the following readings in order e Communication settings for port 1 baud rate address and protocol e Communication settings for port 2 baud rate address and protocol e Communication settings for port 3 baud rate address and protocol e Communication settings for port 4 baud rate address and protocol EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS Group 3 PT and CT ratios Use the arrow keys to access the following readings in order e PTratio e CTratio Group 4 external display units e Primary secondary gt Select either primary or secondary units for the external display using the GE Communicator software When primary is selected the display shows all readings in primary units based on the user selected PT and CT ratios When secondary is selected the display shows all readings in secondary units Group 5 Firmware versions and serial numbers Use the LEFT RIGHT arrows to access the following readings in order e External display run time DSP run time and communications run tim
29. TABLE OF CONTENTS 7 GE COMMUNICATOR EXT INDEX OVERVIEW RETRIEVE AND SEND DEVICE PROFILES USING THE REPORT PAGE GENERAL SETTINGS CT AND PT RATIOS AND SYSTEM HOOKUP 7 6 ONE AMP CURRENT INPUT ADDENDUM MODIFICATION NUMBER 10 0 7 9 LIMIT AND WAVEFORM FULL SCALES tentent ten tnnttnttenn 7 11 Bess CETTE 7 13 COMMUNICATIO DNP CusToM C CUSTOM MODBUS M BP credite teretes eee eb UR REVENUE AND ENERGY SET TINQOS iuiessinc nii unti cbie C C POWER Q E P P L E P DEMAND INTEGRATION INTERVALS ecessssssssesscssesssssesssecsssscessssesseeessscsssssessesessseeesseessseesseses TERNAL KYZ OUTPUTS AND TEST LED 5 9 EXTERNAL DISPLAY 5 PROGRAMMING TRANSFORMER LOSS COMPENSATION TRANSFORMER LOSS COMPENSATION FOR ENHANCED UNITS te O LOAD PICKUP coco ete nette E D t Ln UE UMULATIVE DEMAND retire tetti teer leet obedit ERGY PULSES AND ACCUMULATIONS IN THE INTERVAL ULSEACCUMDEATIONS bee ttbi r tet uod RIMARY HOUR READINGS ROLLOVER UALITY AND ALARM SETTINGS IMITS
30. Tenth Second Phase to Phase Volts 412321 Tenth Second Phase to Phase Volts 412323 Tenth Second VAR A B C 412325 Tenth Second VAR A B C 412327 Tenth Second VAR A B C 412329 Tenth Second Watts A B C 412331 Tenth Second Watts A B C gt Type in the Line and Point a Most Frequently Used List is below for the reading you would like to view gt Click Enter The Description automatically appears Table 7 2 Most Frequently Used Custom Modbus Readings Line Point Description 34 0 One Second Phase to Neutral Volts Volts AN 34 1 One Second Phase to Neutral Volts Volts BN 34 2 One Second Phase to Neutral Volts Volts CN 35 0 One Second Auxiliary Volts V Aux 36 0 One Second A B C 1A 36 1 One Second A B C 18 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Table 7 2 Most Frequently Used Custom Modbus Readings 36 2 One Second A B C 1C 37 0 One Second Measured N Current 1Nm 38 0 One Second Calculated N Current 1Nc 39 0 One Second Phase to Phase Volts Volts AB 39 1 One Second Phase to Phase Volts Volts BC 39 2 One Second Phase to Phase Volts Volts CA 40 0 One Second VA A B C VA A 40 1 One Second VA A B C VA B 40 2 One Second VA A B C VA C 41 0 One Second VA Total VA Total 42 0 One Second One Second VAR A
31. beside Internal KYZ Settings or double click on the Internal KYZ Settings line This screen appears Internal Outputs KYZ Assigned Channel Watt Hour Pulse Mode Form Output Per Pulse Width ms HB LED 1 8000 fioo zea Hep gt Using the pull down menu next to HB LED assign a channel to the Heartbeat LED gt Make changes to Watt Hour per Pulse Pulse Width and Mode for the Heartbeat LED There may also be a Form column on your screen Form A Transition Form C Pulse gt When all changes are entered click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter Xi For EPM 9650 Only To make the EPM 9650 follow the settings on this screen go to the Test y Pulse screen after the Device Profile has been updated On the Test Pulse screen click the On button Ignore the settings on this screen see section 7 26 7 4 3 External Display Options This setting of the Device Profile configures the Meter s External Display to read either Primary or Secondary volts All other readings will be in the Primary regardless of this setting Many utility companies want to read secondary volts and primary power readings This feature allows them to do this 7 30 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNI
32. codes and standards 1 1 1 1 1 o 0990 000 ooo ooo EPM 9000 series meter LINE ls dl a E E cee URINE Int PP rye CT SHORTING SWITCI BLOCK Z m OR TEST lt D gt D o FI pes SWITCHGEAR CHASSIS il GROUND SUPPLY POWER L gt DEPENDENT ON EQUIPPED POWER SUPPLY OPTION NCBA FIGURE 3 8 Four wire Wye 3 element Direct Voltage With 4 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 9 CHAPTER 3 INSTALLATION The typical wiring diagram for the four wire wye three element with three PTs and four CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable codes and standards L N VAUX LINE CT SHORTING SWITCH OR TEST BLOCK SWITCHGEAR CHASSIS GROUND SUPPLY POWER DEPENDENT ON EQUIPPED POWER SUPPLY OPTION NCBA FIGURE 3 9 Four wire Wye 3 element with 3 Pts and 4 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The typical wiring diagram for the four wire wye three element with three PTs and three CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable codes and standards LINE CT SHORTING SWITCH TEST BLOCK SWITCHGEAR CHASSIS GROUND a SUPPLY POWER DEPENDENT ON EQUIPPED POWER SUPPLY OPTION N C B A LOAD VAUX
33. location or they may be transported by the utility system to another adjacent customer Often equipment that is sensitive to power quality problems may in fact also be the cause of the problem If a power quality problem is suspected it is generally wise to consult a power quality professional for assistance in defining the cause and possible solutions to the problem EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 23 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 3 Installation 3 1 Hardware Installation 3 1 1 Mounting the EPM 9450 9650 The EPM 9000 Advanced Power Quality Metering System is designed to mount against any firm flat surface Use a 410 screw in each of the four slots on the flange to ensure that the unit is installed securely For safety reasons mount the EPM 9450 9650 in an enclosed and protected environment such as in a switchgear cabinet Install a switch or circuit breaker nearby label it clearly as the meter s disconnecting mechanism The following environmental conditions must be maintained in the mounting area e Operating temperature 40 to 70 C 40 to 158 F e Relative humidity 5 to 95 non condensing FRONT VIEW SIDE VIEW K 10 5 26 67 cm 2x3 25 2x40 3 2 35 8 25 cm 10 16 cm 5 96 cm
34. of 1000 watts 1 kW for 1 hour Stated another way if the power delivered instantaneous watts is measured as 1000 W and the load was served for a one hour time interval then the load would have absorbed 1 kWh of energy A different load may have a constant power requirement of 4000 W If this load were served for one hour it would absorb 4 kWh of energy Likewise if it were served for 15 minutes it would absorb of that total or 1 kWh The following figure shows a graph of power and the resulting energy that would be transmitted as a result of the illustrated power values For this illustration it is assumed that the power level is held constant for each minute when a measurement is taken Each bar in the graph represents the power load for the one minute increment of time In real life the power values are continually moving EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 15 CHAPTER 2 ELECTRICAL BACKGROUND 80 70 60 50 40 30 20 10 0 T T T T T T T T T T T T T T 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Time minutes FIGURE 2 8 Power Use over Time kilowatts The data in the above figure is reproduced in the following table to illustrate the calculation of energy Since the time increment of the measurement is one minute and since we specified a constant load over that minute the power reading can be converted to an equivalent consumed energy reading by multiplying the powe
35. primary and backup The internal modem can be programmed with an ASCII string for identification purposes If this string in present the modem will play the string to the host computer upon connection to identify the meter to the host software 5 3 5 Programming Modems for Remote Communications When a modem speaks to most RS485 or RS232 based devices it must be programmed to certain settings for the communication to work This task is often quite complicated The steps below illustrate how to communicate with the remote meter s For the modem connected to a remote PC the originate modem 1 Restore the modem to factory settings to erase all previously programmed settings 2 Setthe modem to display result codes These will be used by the remote PC 3 Setthe modem to verbal result codes These will be used by the remote PC 4 Setthe modem to use the DTR signal This is necessary for the remote PC to ensure proper connection with the originate modem 5 Setthe modem to enable flow control This is necessary to communicate with remote modem connected to the EPM 9450 9650 6 Setthe modem to write the new settings to activate the profile This places the settings into nonvolatile memory they will take effect after the modem powers up EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 15 CHAPTER 5 COMMUNICATIONS For the modem connected to the EPM 9450 9650 the remote modem 1 Restore the modem to factory
36. readings e Use the MODE button to scroll between modes e Use the UP DOWN arrows to scroll from group to group within each mode Use the LEFT RIGHT arrows to scroll from reading to reading within each group e Use the GE Communicator EXT software to flash update the external LED display 4 1 2 Dynamic Readings Mode The external LED display puts itself in the dynamic readings mode upon power up Use the MODE button to access the dynamic readings from other modes Use the UP DOWN arrows to navigate from group to group within this mode See FIGURE 4 1 Dynamic Readings Navigation Map on page 4 4 for details Group 1 phase to neutral voltage metering Use the LEFT RIGHT arrows to access the following readings in order Voltage VAN Ven and Ven e Maximum voltage Vanimax Vanimax ANd Vewimax e Minimum voltage Vanimin Vaniminh Qd Venimin e Total harmonic distortion 96THD for voltages Vay Vay and Very EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 1 4 2 CHAPTER 4 OPERATING INSTRUCTIONS Total harmonic distortion for maximum voltages Vanimax Vanimax aNd VcN max Total harmonic distortion for minimum voltages Vanymin VBNimin aNd Vew mig Group 2 phase to phase voltage metering Use the LEFT RIGHT arrows to access the following readings in order Voltage Vag Vac and Maximum voltage Vagimax Vactmax Qd Veaimax Minimum voltage Vagtmin Vectminh Qd Vcatmip Group 3 current metering Use
37. return to the main Device Profile screen For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter 7 38 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 4 10 Primary Hour Readings Rollover From the Device Profile screen see section 7 2 click on the button beside Primary Hour Readings Rollover or double click on the Primary Hour Readings Rollover line This window appears Accumulations Rollover Enter the Number at which roll over will occur 10000000000000000 Example Entering 10000 the displays will show 0000 9999 Setthe number at which the Rollover will occur gt Click OK to close the window and return to the main EPM 9000 Advanced Power Quality Metering System screen EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 39 CHAPTER 7 GE COMMUNICATOR EXT 7 5 Power Quality and Alarm Settings This is the third group of settings in the Device Profile gt From the Device Profile screen see section 7 2 click on the button or double click on the Power Quality and Alarm Settings line EXT Power Quality and Alarm Settings E 45 Limits EX5 ElectroLogic Relay Control PQ Thresholds Waveform Recording E X5 Squared T and V Squared T Thresholds 5 5 High Speed Inputs Click on the Programmable Setting you would li
38. three readings to create the equivalent three phase power value Using mathematical averaging techniques this method can derive a quite accurate measurement of three phase power More advanced meters actually sample all three phases of voltage and current simultaneously and calculate the individual phase and three phase power values The advantage of simultaneous sampling is the reduction of error introduced due to the difference in time when the samples were taken Blondell s Theorem is a derivation that results from Kirchhoff s Law Kirchhoff s Law states that the sum of the currents into a node is zero Another way of stating the same thing is that the current into a node connection point must equal the current out of the node The law can be applied to measuring three phase loads The figure below shows a typical connection of a three phase load applied to a three phase four wire service Kirchhoff s Laws hold that the sum of currents A B C and N must equal zero or that the sum of currents into Node n must equal zero 5 C B Phase B Phase C Node n A N FIGURE 2 7 Three phase Load Illustrating Kirchhoff s Law and Blondell s Theorem If we measure the currents in wires A B and C we then know the current in wire N by Kirchhoff s Law and it is not necessary to measure it This fact leads us to the conclusion of Blondell s Theorem that we only need to measure the power in three of the four wires if they are con
39. updated to the intended device This chapter also details e Resetting Meter Information section 10 and Manual Waveform Capture section 7 11 Setting and Retrieving Meter Time section 7 9 and Options section 7 12 Actual programming screens may vary depending on the options ordered with your meter The settings shown are Initial Settings for the EPM 9650 meter unless otherwise noted Most 9450 Meter settings are similar to the 9650 meter settings The EPM 9650 Meter supports DNP Level 2 For details on DNP Level 2 see chapter 16 of the GE Communicator EXT User Guide EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 2 Retrieve and Send Device Profiles gt Click on the Profile button or select Tools gt Edit Current Device Profile EPM 9000 Advanced Power Quality Metering System retrieves the programmable settings from the currently connected meter The following screen appears Retrieving Programmable Settings from Device Reading Programmable Settings Time Remaining Reading Block Ry A dialogue box appears to confirm that the profile was retrieved successfully Then the Device Profile screen appears Device Profile EPM 9650 V Switch 2 45 General Settings 4 Revenue and Energy Settings EXT Power Quality and Alarm Settings EX Trending Profile Settings e External Output Modules This screen contains all the programmable
40. value that constitutes the demand In the example the accumulated energy is 14 92 kWh But this measurement was made over a 15 minute interval To convert the reading to a demand value it must be normalized to a 60 minute interval If the pattern were repeated for an additional three 15 minute intervals the total energy would be four times the measured value or 59 68 kWh The same process is applied to calculate the 15 minute demand value The demand value associated with the example load is 59 68 kWh hour or 59 68 kWd Note that the peak instantaneous value of power is 80 kW significantly more than the demand value The following figure illustrates another example of energy and demand In this case each bar represents the energy consumed in a 15 minute interval The energy use in each interval typically falls between 50 and 70 kWh However during two intervals the energy rises sharply and peaks at 100 kWh in interval 47 This peak of usage will result in setting a high demand reading For each interval shown the demand value would be four times the indicated energy reading So interval 1 would have an associated demand of 240 kWh hr Interval 7 will have a demand value of 400 kWh hr In the data shown this is the peak demand value and would be the number that would set the demand charge on the utility bill 100 80 60 40 20 NC ON i 42 Y 8 Intervals 15 mins kilowatt hours FIGURE 2 9 Energy Use a
41. 0 Hardware Rev A to reflect the hardware change Standard 5 amp input one wind around internal meter toroid Modified 1 amp input 5 winds around internal meter toroid In order to maintain maximum accuracy with one 1 amp current inputs the wire is wound around the internal toroids five 5 times instead of the usual one time This effectively multiplies the current input by five 5 times to maintain maximum resolution Configuring CT Ratios with Modification Number M10 0 EPM 9450 Hardware Rev A EPM 9650 and other Hardware Revs adjust internally for the hardware change Because the EPM 9000 Advanced Power Quality Metering System sees the one 1 amp input as five 5 amps it is necessary to configure the CT secondary to five 5 amps Example Normal One Amp CT Ratio 1000 1 Meter M10 0 One Amp CT Ratio 1000 5 The CT Ratio screen shows the correct input for the typical one amp user EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT PLEASE NOTE This adjustment is for EPM 9450 Hardware Rev A ONLY Device Profile CT and PT Ratios CT Ratio __ PT Ratio Line to Neutral econdan r Hookup r Voltage 300 Volt Option Only INI r Operational Frequency Range 20Hz to 65Hz hd e itage ado Even though the software is configured from 1000 5 it is actually displaying cu
42. 1 mA analog outputs 8 channel 0 to 1 mA analog outputs WII rettet t rete common mode tese rele 0 196 of full scale CalibEGOtlOn self calibrating Tero In PP EE programmable 15 4 Metering ACCURACY Conformarnce esae ttti ANSI C12 20 class 0 2 and IEC 687 Voltage 6 0 196 for high speed instant metering 50 ms 0 0196 for standard metering 1 second Voltage 6 1 0 196 for high speed instant metering 50 ms 0 0196 for standard metering 1 second 0 1 for high speed instant metering 50 ms 0 03 for standard metering 1 second FREQUCN GY t pateret 0 01 Hz for high speed instant metering 50 ms 0 001 Hz for standard metering 1 second Real power PF 1 0 196 for high speed instant metering 50 ms 0 0496 for standard metering 1 second Real power PF 0 5 0 196 for high speed instant metering 50 ms 0 0896 for standard metering 1 second Reactive 0 196 for high speed instant metering 50 ms 0 0696 for standard metering 1 second Apparent power 0 496 for high speed instant metering 50 ms 0 0696 for standard metering 1 second Power factor aeeettepeetegterstens 0 196 for high speed instant metering 50 ms 0 0696 for standard metering 1 second Harmonics 0 196 standard metering only Rea
43. 2 T TECHNICAL SPECIFICATIONS a 1 ide etii hite iei eidien 1 12 TEMPERATURE d TERMINATIONPRESISTORS rate Pa EUSA Re tem uates 5 7 TIME OF USE FUNCTION ssssssssssssscsscesessssssecstssssssssssssesseesssseceeeeeestssmesssssssssssseseeseeceecceceeeeececeeesetstseeettens 4 27 TOTAL HARMONIC DISTORTION a citer tete ete te err n Reset 2 5 TOU FUNCTION 4 27 TRANSFORMER 0 itt petertbepetet eret din 4 31 V VOLTAGE el av lepfoa de 2 3 W Wwhupeg 6 2 WAVEFORM CAPTURE 2 22 WEIGHT itte 1 15 WIRING ero e rem GIONS RR E input output modules 11 2 ce ea p WYE CONNECTION lare ME 2 10 edere cm ED 2 11 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 INDEX EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE
44. 2 15 Log Status Page The log status page displays a list of logging statistics for the primary meter The number of records and memory used are listed for each log gt Press the LOG STATUS button on the main menu page to display the logging statistics FIGURE 4 26 Logging Statistics Page EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 21 CHAPTER 4 OPERATING INSTRUCTIONS 4 2 16 Resets Page The meter reset commands page is use to reset meter commands The following data can be reset maximum minimum and demand values hours t and Vt counters e Alllogs Time of use values for the current season and month iy Reset commands will cause data to be lost NOTE gt Press the RESET button on the main menu page to display the resets page FIGURE 4 27 Reset Commands Page gt Touch the window for the reset command you want to perform The DON T RESET indicator will change to RESET Touch the RESET NOW button gt Touch OK to reset the commands and refresh the screen EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS 4 2 17 Settings Pages There are five settings pages These allow the user to change parameters for the LCD screen and communications as well as view the meter status and firmware versions gt Press the SETTINGS button on the main menu page to display the LCD screen settings page FIGURE 4 28 LCD Screen Se
45. 5 side port see EPM 9450 9650 Connected to an RS485 Master on page 5 9 The EPM 9450 9650 power supply will not supply power to any external output modules An external 12 V power source such as the PSIO must be used RS485 communication is reliable for up to 4000 feet 1219 meters The following figure illustrates the input output modules connection via RS485 A S V V Male side port on input output module External power V source 120 ohms PSIO or equivalent for runs typically longer than 500 ft 120 ohms for runs typically longer than 500 ft S Al FIGURE 5 9 EPM 9450 9650 Connected to Output Module via RS485 Connect the A and terminals on the EPM 9450 9650 to the Al and B terminals of the female RS485 port Connect the shield to the shield S terminal The S terminal is used to reference the meter port to the same potential as the source It is not an earth ground connection the shield must be connected to earth ground at one point Provide termination resistors at each end see note below connected to the A and B lines The resistance of Rz is approximately 120 ohms EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS Termination resistors are only needed with runs typically more than 500 feet The EPM vy 9450 9650 has some level of internal termination and resi
46. ALITY METERING SYSTEM USER GUIDE 5 7 5 8 CHAPTER 5 COMMUNICATIONS INCORRECT T CONNECTION Tee connection incorrect The three wires connected in a T shape on both the and 4 terminals will cause interference problems INCORRECT STAR CONNECTION Star connection incorrect The three wires connected in a star shape on both the 4 and terminals will cause interference problems FIGURE 5 7 Incorrect T and Star Topologies 5 2 2 Connection to an RS485 Master NOTE Use ports 1 through 4 to connect to an RS485 master For information on connecting the EPM 9450 9650 to a modem see Programming Modems for Remote Communications on page 5 15 The RS485 link is viable for up to 4000 feet 1219 meters An RS485 to RS232 converter may be required such as the GE Multilin F485 or similar devices Any port may be used to connect a display or RS485 master However for EPM 9450 9650 units with the internal modem or internal network option port 2 will be labeled modem gateway Ports 1 3 and 4 will not change In this case the input output modules must use port 4 port 3 is an alternate The external displays are shipped programmed to use port 3 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS To establish communication between a meter and any RS485 master use a shielded twisted pair cable Connect the cable to an RS485 port port 1 or port 4 on the E
47. CAL BACKGROUND Delta Connection Delta connected services may be fed with either three wires or four wires In a three phase delta service the load windings are connected from phase to phase rather than from phase to ground The following figure shows the physical load connections for a delta service Ica FIGURE 2 4 Three phase Delta Winding Relationship In this example of a delta service three wires will transmit the power to the load In a true delta service the phase to ground voltage will usually not be balanced because the ground is not at the center of the delta The following diagram shows the phasor relationships between voltage and current on a three phase delta circuit In many delta services one corner of the delta is grounded This means the phase to ground voltage will be zero for one phase and will be full phase to phase voltage for the other two phases This is done for protective purposes Vbc Vab FIGURE 2 5 Three phase Voltage and Current Phasors for Delta Winding Another common delta connection is the four wire grounded delta used for lighting loads In this connection the center point of one winding is grounded On a 120 240 volt four wire grounded delta service the phase to ground voltage would be 120 volts on two phases and 208 volts on the third phase The phasor diagram for the voltages in a three phase four wire delta system is shown below EPM 9000 ADVANCED POWER QUALITY METERING SYSTE
48. CATOR EXT From the Device Profile screen see section 7 2 double click on External Display Options line Device Profile External Display Settings Voltage Readings o Ere Use the pull down menu to select either Primary or Secondary units for voltage gt Click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter 7 4 4 Programming Transformer Loss Compensation From the Device Profile screen see sction 7 2 click on the button beside Transformer Loss Compensation or double click on the Transformer Loss Compensation line The following submenu appears Enabled Disabled LWFE 0 000 LVFE 0 000 LWCU 0 000 LVCU 0 000 Apply Both Watts amp Watts Add to Watts and Subtract from VAR This screen displays the current values for the meter s Transformer Loss Compensation LWFE Percent Loss of Watts due to Iron 96LVFE Percent Loss of Vars due to Iron 96LWCU Percent Loss of Watts due to Copper 96LVCU Percent Loss of Vars due to Copper Consult Appendix B of the GE Communicator EXT User Guide for an overview of Transformer Loss Compensation EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 51 A WARNING v NOTE CHAPTER 7 GE COMMUNICATOR EXT gt If you have a Standard Unit double click on any loss value Y LW
49. DE 4 25 4 26 4 2 18 Navigational Map CHAPTER 4 OPERATING INSTRUCTIONS A navigational map for the external LCD screen is shown below Status Port Settings NEXT NEXT UJ Current Voltage NEAT NEXT Readings NEXT NEXT Readings A B C Voltage 4 PH PH Readings Firmware 1 P 1 PH N FA T Versions Einkcsenings A B C BACK PH PH BACK PH N BACK NEXT NET AMPS VOLTS Curent Voltage amp General Page Readings NEXT Readings NEXT LCD Screen Details Details Settings A NEXT NEXT Meter Reset Commands AMPS VOLTS Real Time GENPAGE Power Readings Details RESETS NEXT REAL TIME Log Status POWER SETTINGS DEMAND NEXT RT Real Time Trending Table J LOG STATUS NEXT BACK Demand V Power N DEMAND b 4 Readings BOWER MAIN AREND DETAIL Time s Trending Graph NOME ENERGY CHANNEL d WAVEFORM Accumulated TOU Real Time Energy Trending Selector Information SPECTRUM FLICKER LIMITS NEXT TOU NEXT i Timesi PHASORS Harmonic ei Real Ti Spectrum Long Time fame Pei Analysis Register Flicker Waveform WERT y Accumulations Graph S LONG ks DEMAND NEXT ACCUM TERM VM N i Time of Use Short Time Readings Instantaneous Flicker Limits Phasor Register NEXT Flicker SHORT NEXT Analysis Demand TERM NEXT FIGURE 4 33 Navigational Map for External LCD Screen EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHA
50. E CHAPTER 7 GE COMMUNICATOR EXT G must be in the part number for a 300 volt direct connection Max Voltage also shows the max voltage the unit can measure To select the 300 Volt Option check the 300 Volt Secondary box Are you sure you want to select this box gt When all changes are entered click OK to return to the main Device Profile screen Forthese changes to take effect you must click on the Update Device button This sends the new profile to the meter Then Reset Logs Warning Resetting Logs clears Logs and Accumulations Be sure to capture needed meter A information before updating the Device Data will no longer be available after the Reset The meter will be prepared for new installation 7 3 2 One Amp Current Input Addendum Modification Number M10 0 For special circumstances the meter can be ordered with one amp current transformers This will give the meter a range of 0 1 amps with an additional over range of 1 amp This option is used where 1A IEC meters are required or extended low current performance is needed and higher current performance is not needed This option is not used for most 1A EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 129 CHAPTER 7 GE COMMUNICATOR EXT installations The standard Meter has the capability of very accurability monitoring 1A loads and providing extended current overload This section shows how to change the CT Ratios in the Meter ONLY EPM 945
51. ER QUALITY METERING SYSTEM USER GUIDE 3 19 CHAPTER 3 INSTALLATION To connect the touch screen external LCD module use the stand alone interface cable provided with the display The cable is six 6 feet long with 20 AWG conductors see detail below Insert one end of the supplied cable into port 3 of the EPM 9450 9650 Port 3 is factory set to match the display baud rate of 9600 To use a port other than port 3 you must set its baud rate to 9600 using the GE Communicator EXT software Insert the other end of the cable into the back of the LCD module The connectors fit only one way into the ports TOP factory test connector BOTTOM LCD display connection key LCD External LCD display port Stand alone External LCD display interface c bl back view detail Contrast O 5IDC IN 3 4854 4 GND 2 485 1 GND RS232 o T i 6NC twisted parr fs twisted pair 7 232_RX1 CTS Shield eo 8232 TXl RTS Tue 9 PWR DE9 o OCIN 2to30V0C 5 GND 4 48543 485 2 GND1 EPM Color Pattern V Red p Shield gt Red V lee twisted pair White ij icis Lc x twisted pair Silver A White ecc Black S Silver eee EPM 9000 port 3 FIGURE 3 20 EPM 9450 9650 Connected to the External LCD Display EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION 3 2 8 High speed Inputs Wiring
52. FE This screen appears Device Profile Transformer and Line Loss Compensation Percent Loss of Watts Due to Iron Due to Copper 0 000 Percent Loss of VARS Due to Iron Due to Copper Add to Watts and Subtract from VAR v ox ff emen ter Click on TLC Calculator to find the values to enter into the Percent Loss windows The Calculator button will launch an Excel Spreadsheet which will do the calculations for you once the required data is entered A copy of the Excel Spreadsheet is in Appendix B of the GE Communicator EXT User Guide EPM 9000 Advanced Power Quality Metering System will automatically launch the Excel Spreadsheet as part of its software package But for the TLC Button to work you must have the Excel program in your system If you do not have Excel software or if the spreadsheet file is not in the Communicator directory a warning will be displayed instead of the worksheet You can do your own calculations using the hardcopy Transformer Loss Compensation Worksheet in Appendix B of the GE Communicator EXT User Guide For most Excel users the spreadsheet will not run until permission is given to run the Macros contained in the sheet This is done by changing the Excel Security Setting from High to Medium The Excel Commands are From the Excel Toolbat select Tools Security Options On the Security Tab Page click on the Macro Security button D Select Medium Security Th
53. GE Consumer amp Industrial Multilin Power Quality Met 46 Multilin B cl ADVANCED POWER QUALITY METERING SYSTEMS High Performance Power Meters and Data Acquisition Nodes Instruction Manual EPM 9450 9650 revision 1 0x GE publication code GEK 113281C GE Multilin part number 1601 0159 A4 Copyright 2008 GE Multilin GE Multilin 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 Internet http www GEmultilin com GE Multilin s Quality Management System is registered to I509001 2000 OMI 005094 TABLE OF CONTENTS Table of Contents 1 OVERVIEW INTRODUCTION essi itas irme oem aru DESCRIPTION FUNCTIONALITY DESCRIPTION ADVANCED COMMUNICATION FEATURES sette tnentrnttnntttnntttenis POWER QUALITY ADVANCED REVENUE METERING CAPABILITY ADVANCED DATA LOGGING FEATURES ceessssessssssssesssseessssessssecsssseessesessessssecssnseessseenseeeeses DISPLAY SCREENS uiii i tie P t Dec sto ced ed e D CREER EXTERNAL INPUT OUTPUT MODULES EN 50160 FLICKER DESCRIPTION THEORY OF OPERATION INSTANTANEOUS FLICKER EVALUATION u sessssesssssesssssessesssssesssseesssscessseesscsesseesssscessneesseses SHORT TERM FLICKER EVALUATION LONG TERM FLICKER EVALUATION SU
54. ION The wiring diagram for the three wire two element delta direct voltage with three CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable codes and standards NOTE LINE CT SHORTING SWITCH OR TEST BLOCK SWITCHGEAR CHASSIS GROUND SUPPLY POWER C B DEPENDENT ON EQUIPPED POWER SUPPLY OPTION FIGURE 3 13 Three wire 2 element Delta Direct Voltage with 3 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The wiring diagram for the three phase four wire 2 5 element wye connection with two PTs and three CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable codes and standards NOTE LINE LE Ll _ pes SWITCHGEAR CHASSIS GROUND PTs i 5 SUPPLY POWER L DEPENDENT ON EQUIPPED POWER SUPPLY OPTION NCBA LOAD FIGURE 3 14 Three phase 4 wire Wye 2 5 element with 2 Pts and 3 CTs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 15 CHAPTER 3 INSTALLATION The wiring diagram for the four wire three element grounded delta connection with four CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable codes and standards NOTE LINE CT SHORTING SWITC Lal TEST BLOCK O VAUX SWITCHGEAR CHASSIS GROUND
55. Ic current channels e frequency channel real power watts channel EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 19 CHAPTER 4 OPERATING INSTRUCTIONS Press the TREND button in the main menu to display the real time trending analysis pages FIGURE 4 23 Real time Trending Analysis Page Vay voltage Touch the CHANNEL button to display the channel selector page This page allows you to select from the channels indicated above FIGURE 4 24 Trending Channel Selector Page The active channel appears at the lower right of the screen The time interval for trending appears at the bottom of the screen To increase this interval touch the UP button to decrease the interval press the DOWN button gt Select a channel and touch OK to return to the main trending page Trending for the selected channel will begin y The data from the previously active channel will be lost if the channel is changed NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS gt Touch the DETAIL button in the main trending page to view detailed logs for the selected channel Vay voltage shown below FIGURE 4 25 Real time Trending Details Page gt Touch the 20 LOGS or 160 LOGS buttons to view data for the previous 20 or 160 logs respectively gt Touch the BACK button to return to the trending analysis page or the MAIN button to return to the main menu page 4
56. M USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND Vca 120V 120V Vab FIGURE 2 6 Three phase Four wire Delta Phasors 2 44 Blondell s Theorem and Three phase Measurement In 1893 an engineer and mathematician named Andre E Blondell set forth the first scientific basis for poly phase metering His theorem states If energy is supplied to any system of conductors through N wires the total power in the system is given by the algebraic sum of the readings of N watt meters so arranged that each of the N wires contains one current coil the corresponding potential coil being connected between that wire and some common point If this common point is on one of the N wires the measurement may be made by the use of N 1 wattmeters The theorem may be stated more simply in modern language In a system of N conductors N 1 meter elements will measure the power or energy taken provided that all the potential coils have a common tie to the conductor in which there is no current coil Three phase power measurement is accomplished by measuring the three individual phases and adding them together to obtain the total three phase value In older analog meters this measurement was made using up to three separate elements Each element combined the single phase voltage and current to produce a torque on the meter disk All three elements were arranged around the disk so that the disk was subjected to the combined torque of the three elements As a
57. MMARY scs ette recette en p EDU E ER ME MM C ORDER CODES zs atte me d ed tei tue lo i Ct EXTERNAL MODULES SPECIFICATIONS nos POWER SUPPLY INPUTS E OUT cM METERING DATA LOGGER oreraa taut Ux One E Iu UE DISPLAY COMMUNICATIONS esssssessssessssssssssscssecesssesssscessssessssesssesssssssssecssssessseeessscssssessaseessseenseseesesess rs M COMPLIANCE M TRU EE 2 ELECTRICAL OVERVIEW M T HR 2 1 BACKGROUND THE EPM 9450 9650 2 1 EPM 9450 9650 5 2 3 DESCRIPTION VOLTAGE CURRENT REAL POWERS M M AE REACTIVE POWER nurane ERU E LM MR MUN APPARENT POWER POWER FACTOR a Cte E dU TENE PEASEANGEES uin liste rece eret TOTAL HARMONIC DISTORTION sessssesssssssssesssssssssecsssecssssessseecsuscsssecssssesssseesseeessecsssseessnecs 2 5 K FACTOR iuto istinc entere ihid tiu n i eit i IRR RS 2 6 ENERGY DEMAND INTEGRATORS cscs sert dotis ad nein ix od 2 7 DESCRIPTI
58. MMUNICATOR EXT 7 9 Manual Waveform Capture From the Menu bar click on Tools gt Manual Waveform Capture The Manual Waveform Capture screen appears Waveform Log Statistics Records Memory Used Newest Record Time Oldest Record Time Record Size Max Records Memory 05 31 2006 17390512 04 12 2006 16 52 16 51 256 05 31 2006 17390512 04 12 2006 16 52 16 51 16384 This screen displays the Waveform Log Statistics of the logs that have possible Waveform Triggers gt Click the Trigger Now button at the bottom of the screen to create a waveform EPM 9000 Advanced Power Quality Metering System creates a waveform in the Meter s memory The Records on the screen will increase by 1 gt To retrieve the Waveform from the Menu Toolbar click Logs gt Retrieve Log from Device Click OK to return to the main Device Profile screen 7 58 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 59 CHAPTER 7 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE INDEX Index B BEONDELES TEIEOREM us intente n nen denm tein tette e idle 2 13 C COMMUNICATIONS features input output modules HUM COST ER MAUI DIG 5 11 remote RS485 5 12 ONU UL 5 8 specifications 1 15 saec
59. O Source Hour Reading Aggregator ill 1 2 3 4 5 6 7 8 PII M Quadrant 1 4 Watt Hour hd Aggregator User Assigned Label 1 2 Pemutar i 3 4 pomara U U U U U U E e Purpose of Pulse Accumulations Pulse Accumulators are used to accumulate Pulse information from External Devices such as gas water or electricity meters energy management systems SCADA devices or any pulse generating device Pulse Accumulation is a very flexible way to accumulate information from external devices Pulses from other meters can be algebraically combined with the host meter s pulse accumulations to generate one reading for a set of meters in a complex arrangement Source This is the particular input on the meter which will be accumulated Units Pulse This is the scale factor which normalizes the pulses so that they can be aggregated if desired Pulses are stored in primary values Accumulator This allows you to place the pulse register into a separate accumulation register which can aggregate or net values User assigned label This window allows a user to enter a label designation so that when reading the Aggregator the meter will display the source add or subtract data use pull down menu in each window of Accumulator columni s EPM 9450 does not support Averaging for Total Values that are NEGATIVE y EPM 9650 DOES support that type of Averaging NOTE gt When all data has been entered click OK to
60. ON siste irc ERROR RR RR ER RR REIR HERR 2 7 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE i TABLE OF CONTENTS 3 INSTALLATION 4 OPERATING INSTRUCTIONS THERMAL DEMAND iti eth erect tette ete eI GET 2 7 BLOCK FIXED WINDOW DEMAND 2 7 ROLLING SLIDING WINDOW DEMAND 2 7 PREDICTIVE WINDOW DEMAND s ccsccsssocoossssocscsosssnscoesssonscsesstusesssosessenassensesseovesseessnneetanes 2 8 ec M 2 8 THBEE PHASE SYSTEM CONFIGURATIONS csset oit tener ente 2 10 DESCRIPTION nerit WYE CONNECTION DELTA CONNECTION BLONDELL S THEOREM AND THREE PHASE 2 13 POWER ENERGY AND DEMAND E Pe tege rye gr 2 15 BJ ESGRIPMION MR A RE 2 15 2 15 ENERGY 2 15 DEMAND 2 17 REACTIVE ENERGY AND POWER FACTOR 2 18 REAL REACTIVE AND APPARENT POWER sscsscsssessesssecsessssssessesssssssesscescssesscsesssesnesnease 2 18 POWER ACTOR cc oM recie Errem erem te Rte m eet eer EAE A 2 19 EARMONIC BISTORTUOR u a v SU UE REO HU GI dde utn 2 20 HARMONICS OF A NON SINUSOIDAL WAVEFORM 2 20 INDUCTIVE AND CAPACITIVE IMPEDANCE 2 21 VOLTAGE AND CURRENT MONITORING
61. PM 9450 9650 Connect the and Bl terminals on the EPM 9450 9650 to the positive and negative terminals on the master respectively Provide jumpers only on a four wire master linking its two negative terminals and two positive terminals An RS485 communication is reliable up to 4000 feet 1219 meters Connect the shield to the ground G terminal on the master The shield must also be connected to earth ground at one point Provide resistors at each end connected to the positive and negative lines The termination resistance Rz is approximately 120 ohms IE Termination resistors are only needed with runs typically greater than 500 feet The EPM y 9450 9650 has some level of internal termination and resistors are not generally not a required for lengths less than 500 feet R 120 ohms for runs typically longer than 500 ft R 120 ohms for runs typically longer than 500 ft RS485 port on EPM 9000 meter S Al BI FIGURE 5 8 EPM 9450 9650 Connected to an RS485 Master EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 529 CHAPTER 5 COMMUNICATIONS Connection to Output Modules via RS485 Input output modules can also be connected to the EPM 9450 9650 with an RS485 cable harness supplied with the purchase of the MBIO mounting brackets Insert one end of the cable into port 4 of the meter and the other end of the cable into the communication pins of the output module male RS 48
62. PTER 4 OPERATING INSTRUCTIONS 4 3 Time of Use TOU 4 3 1 Description A time of use TOU usage structure takes into account the quantity of energy used and the time at which it was consumed The EPM 9450 9650 TOU function available with the GE Communicator EXT software is designed to accommodate a variety of programmable rate structures EPM 9450 9650 TOU accumulates data based on the time scheme programmed into the EPM 9450 9650 meter 4 3 2 Time of Use Calendar A EPM 9450 9650 TOU calendar sets the parameters for TOU data accumulation Up to twenty calendars can be stored in the meter and an unlimited number of calendar files can be stored on a PC The EPM 9450 9650 TOU calendar profile allows a programmable usage schedule for example weekday weekend holiday for each day of the calendar year Up to 16 time of use schedules can be created Each TOU schedule divides the 24 hour day into fifteen minute intervals from 00 00 00 to 23 59 59 One of eight different programmable registers e g peak off peak shoulder peak may be applied to each fifteen minute interval The EPM 9450 9650 meter stores accumulations as follows e ona seasonal basis up to four seasons per year onamonthly basis Seasonal and monthly accumulations may span one year into the next Each season and month is defined by a programmable start billing date which is also the end date of the prior season or month e Aseason end
63. Page 4 2 5 Volts Pages The volts pages display the voltage reading details e Real time voltages Vaw Vay Vag Vac and Vc e Maximum voltages Vanimax VaN max Venimaxh Vanimaxh Venimax ANd Venimax Minimum voltages Vaytmin VcNtminy Vaniminh VBN min Qd VcN min gt Touch the VOLTS button on the main menu page to access the current metering values FIGURE 4 6 Main Volts Page gt Touch the PH N or PH PH buttons to view details of phase to neutral or phase to phase readings respectively The phase to neutral volts page displays details of the Vay Van and Vey voltages EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 9 CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 7 Phase to neutral Volts Page The phase to phase volts page displays details of the Vag Vac and Ve voltages FIGURE 4 8 Phase to phase Volts Page Press the BACK button to return to the main voltage page or the MAIN button to return to the main menu page 4 2 4 Current Pages The current pages display the current reading details e Real time phase currents 4 Ig and lc Maximum phase currents lat Igimaxj Qn Icimax e Minimum phase currents laimin Igtmin Qd Icimin e Calculated and measured neutral current Iy e Maximum calculated and maximum measured neutral current Iy Touch the AMPS button on the main menu page to access the current metering values 4 10 EPM 9000 ADVANCED POWER QUALI
64. RAM 512 records CBEMA 109i 16K RAM 256 records 2MB STORAGE OPTION Historical log 1 288K RAM 96 days record size Historical log 2 400K RAM 66 days record size Out of limit log s 96K RAM 1024 records CBEMA lO iniisip 64K RAM 1024 records Relay output log s 48K RAM 512 records Inp t statis log etate 48K RAM 512 records Waveform recording 1040K RAM 64 events 4MB STORAGE OPTION Historical log 1 4 oes 1808K RAM 602 days record size Historical log 2 400K RAM 66 days record size Out of limit log 96K RAM 1024 records CBEMA log 64K RAM 1024 records Relay output log 32K RAM 512 records Input status log 32K RAM 512 records Waveform 1568K RAM 96 events LCD DISPLAY Type Resolution touch screen graphical LCD display T 320 x 240 pixels CCFL backlit EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW Viewing up to 8 meters 4 7 x 3 5 12 1 cm x 9 1 cm LED DISPLAY loc three line multi function LEDs Communications s RS485 master 1 5 7
65. RJ45 connectors and CAT 3 or better cabling The RJ45 connector is supplied with the meter cable 6 Using this LAN connection allows multiple PCs to concurrently access the EPM 9450 9650 The RJ45 line is inserted into the RJ45 at the back of the EPM 9450 9650 with the internal network option The RJ45 connection into the meter connects the EPM 9450 9650 to a network via the Modbus TCP protocol 5 4 2 Hardware Connection The EPM 9450 9650 with the 10 100Base T Ethernet option has all the components of the standard EPM 9450 9650 plus the capability of connection to a network through an Ethernet LAN or through the Internet via Modbus The internal network option is an extremely versatile communication tool with the following features e Adheres to IEEE 802 3 Ethernet standard using TCP IP e Utilizes simple and inexpensive 10 100Base T wiring and connections e Connects to networks using standard built in RJ45 jack Programmable to any IP address subnet mask and gateway requirements e Communicates using the industry standard Modbus TCP protocol Refer to FIGURE 5 3 RJ45 Network Connection Overview on page 5 4 for wiring details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 17 CHAPTER 5 COMMUNICATIONS EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin 6 1 Revision History 6 1 1 Release Dates EPM 9000 Advanced Power Quality Metering System
66. Ratio is Secondary watthour constant over kWh the energy NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE t 1 8 CHAPTER 7 GE COMMUNICATOR EXT Ke setting for KY2 test pulse Do you want to use the following Kh for the test pulse setting 1000 KhiKe PT Ratio X CT Ratio KhiKe 1000 000000 If the Ke screen does not appear go to View Options Misc Enable the Ke screen Click Ves Or Click No and re enter values in the CT amp PT Ratio screen Click OK on the CT amp PT Ratio screen V If changes have been made verify Full Scale values and click OK Select the G option ONLY if you have a G Option Meter Warning Only Select The 300 Volt Option If You Ordered The Meter With The G Option If you connect 300 volts to a meter that does not have the G option you will damage the meter Please check the end label on your meter and your invoice to make sure you have the G Option MODEL NUMBER G must be in the PL 9650 G D2 60HZ 2meg part number for a 300volt direct SERIAL NUMBER POWER INPUT connection 04 20347 90 276 Vas AC or DC Max Voltage also MAX VOLTAGE MAX CURRENT shows the max 300V L N 10A voltage the unit wre can measure C T RATIO P T RATIO NOTES C US LISTED ELECTRICAL amp ELECTRONIC MEASURING amp TEST EQUIP 645A EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUID
67. TY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 9 Main Current Page gt Touch the A B C button to view details of the 4 Ig and Ic real time currents FIGURE 4 10 Current Details Page gt Touch the BACK button to return to the main currents page or the MAIN button to return to the main menu page 4 2 5 Real time Power Page The real time power page displays the real time power metering details e Instantaneous real reactive and apparent power e Average real reactive and apparent power e Predicted real reactive and apparent power e Instantaneous and average power factor gt Touch the REAL TIME POWER button on the main menu page to access these values EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 11 CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 11 Real Time Power Page Press the DEMAND button to continue to the demand power readings or the MAIN button to return to the main menu page 4 2 6 Demand Power Page The demand power page displays the following demand details e Real and reactive power demand block fixed window average in watts and vars respectively e Coincident reactive power demand block fixed window average in vars e Real and reactive power demand predictive sliding window maximum in watts and vars respectively e Coincident reactive power demand predictive sliding window maximum in vars gt Touch the DEMAND POWER button on t
68. Waveform Clipping Threshold e EPM 9450 9650 5 Amp Standard Hardware 61 9437A Peak before clipping e EPM 9450 9650 1 Amp Hardware 12 09A Peak before clipping Hardware Triggers To enable a waveform or PQ recording for any of the 8 High Speed Inputs click in the appropriate box This will trigger a recording based on a contact trigger This is useful to monitor an open device and to capture the waveform during that operation Samples per Cycle To choose the Samples per Cycle to be recorded at 60 Hz click on the Sampling Rate pull down menu Choose from 16 32 64 128 256 and 512 samples per cycle The number of samples per cycle you choose will inversely effect the number of cycles per capture ef you select 256 a Capture Only pop up screen will ask you to select Volts A B C or IA B C e f you select 512 a Capture Only pop up screen will ask you to select one of the individual channels As you increase the number of samples you will record more detailed information The table below illustrates the Effects of Sampling Rate on the number of cycles captured Increasing Sampling Rate increases waveform definition but reduces the length of the observed window The approximate length of the observed window is shown in the last column For example For observed events of approximately 1 2 second a sampling rate of 32 samples should be used Table 7 3 Effects of Sampling Rate S
69. a mounting bracket to both ends of the group using the screws supplied 440 pan head screws One EPM 9450 9650 will supply power for up to four 4 input output modules Next secure the brackets to a flat surface using a 48 screw with a lock washer B The EPM 9450 9650 will supply power for up to four input output modules An external vy power supply such as the PSIO 12 V output must be used if more than four modules are required The following figure shows the input output modules mounted without a PSIO power supply refer to FIGURE 3 7 Input Output Modules With Psio Mounting Front View on page 3 5 for mounting with the PSIO 1 13 28 57mm mounting bracket lt 3 x 1 32 33 27mm 0 015 0 37mm 4 1 104 14mm mounting bracket FIGURE 3 5 Input Output Modules Mounting Overhead View mounting bracket MBIO mounting bracket MBIO 1 25 31 75mm Y per module 2 20 55 87mm 344 87 38mm 1 13 31 37mm FIGURE 3 6 Input Output Modules Mounting Front View 2x10 27 93mm 3 4 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION mounting bracket MBIO mounting 1 25 31 75mm Y per module bracket X per PSIO o 3 o o o ia 8 iz EEXEIXXIL 111 5 22223 On Power in ee 220 55 87mm Power Supply Mis Pewme 12A 3 44 InpuYo
70. abled Device gt Change the Device Address if needed to any address except 1 The Number 1 is always reserved for the Primary Device V Click OK to return to the Modem Programming screen gt When all changes are entered click OK to return to the main Device Profile screen D For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter 7 5 7 DNP Custom Class Map The DNP Custom Class Map is a useful tool for prioritizing the readings in your system and the frequency of the readings The DNP Custom Classes Map also keeps your system free from thousands of unwanted readings For a list of available readings see Appendix E in the GE Communicator EXT User Manual gt From the Device Profile screen section 7 2 click on the button beside General Settings gt Click on the DNP Custom Classes Map button gt Double click on the DNP line EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 21 CHAPTER 7 GE COMMUNICATOR EXT The EPM 9650 supports DNP V3 00 Level 2 and this screen appears Device Profile DNP Class May Port 3 Port 4 Class Point s 0bj Class Point skObj Class Point s 0bj Class Points Obj 303230 None 303230 None 30 32 30 None 3330 None 34 36 30 None 37 30 None 38 30 None Bl Enable DNP Time Synchronization For details on programming the DNP Level 2 screens see Chapter 17 of th
71. al The EPM 9450 9650 supports the following conventions for averaging demand and peak demand thermal demand block window demand rolling window demand and predictive window demand All conventions are programmable and can be accessed via the GE Communicator EXT software 2 5 2 Thermal Demand Traditional analog watt hour Wh meters use heat sensitive elements to measure temperature rises produced by an increase in current flowing through the meter A pointer moves in proportion to the temperature change providing a record of demand The pointer remains at peak level until a subsequent increase in demand moves it again or until itis manually reset The EPM 9450 9650 mimics traditional meters to provide thermal demand readings Each second as a new power level is computed a recurrence relation formula is applied This algorithm recomputes the thermal demand by averaging a small portion of the new power value with a large portion of the previous thermal demand value The proportioning of new to previous is programmable set by an averaging interval The averaging interval represents a 9096 change in thermal demand to a step change in power 2 3 3 Block fixed Window Demand Fixed window demand produces an average arithmetic mean of power readings over a programmed interval For example a typical setting of 15 minutes produces an average value every 15 minutes at 12 00 12 15 12 30 etc for power readings over the previous fifteen mi
72. ample only NOTE Frequency and Voltage values are nominal values The Phase Powers are computed using J X nominal voltage and rated maximum current Double click on any of the settings The Limit and Waveform Full Scales screen appears Device Profile Limit and Waveform Full Scales I A B C Nc Nm V AN BN CN V AB BC CA V Aux Power Phase Power Total Frequency 277 00 480 00 277 00 1385 00 60 00 gt Enter the Full Scale for each parameter f 12 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT e The Limits and Waveform settings section 7 10 and 7 14 respectively will be based on a percentage of the Full Scales entered here e EPM 9000 Advanced Power Quality Metering System automatically recalculates the Full Scale Voltages Currents and Power every time the CT and PT ratios change Frequency is not changed even if the Range Selection is changed Frequency must be changed on the Limits screen Power Phase is the amount of power per each phase Power Total is the power of all phases combined gt When all changes are entered click OK to return to the main Device Profile screen Forthese changes to take effect you must click on the Update Device button This sends the new profile to the meter Reset Logs after changing any settings that will effect the Logs gt From the Menu Bar select Tools gt Reset Meter Information gt
73. amples Samples Cycles per Time per per Capture Approx Cycle Channel Analog HSI 16 7 8 1024 64 1 second 32 7 8 1024 32 1 2 second 64 7 8 1024 16 1 4 second 128 7 8 1024 8 1 8 second 256 3 8 2048 8 1 8 second 512 1 8 4096 8 1 8 second y Note on Waveform Event Captures NOTE A screen of data is one capture If you set Total Captures to 3 and you are recording at 16 samples per cycle you will record 16 Samples 3 x 64 192 cycles of recorded waveforms EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 47 7 48 CHAPTER 7 GE COMMUNICATOR EXT 128 Samples 3 x 8 24 cycles of recorded waveforms With the 2 MB module you can have a total of 64 captures With the 4 MB module you can have a total of 96 captures You can partition the memory in any fashion required for the specific application There is no limitation on the number of cycles that can be recorded per event To choose the total amount of captures click on the Total Captures pull down menu Select from 0 to 96 captures The higher the number the more information you will be stringing together gt When all changes are entered click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter gt Reset Logs 7 5 4 50160 Flicker With the Flicker Settings screen the user can set the test times for the Flicker functio
74. annel 0 to 1 mA analog inputs Eight channel 4 to 20 mA analog inputs Eight channel 0 to 5 V DC analog inputs Eight channel 0 to 10 V DC analog inputs Four channel control relay outputs Four channel KYZ solid state pulse outputs Eight channel auxiliary digital status inputs Auxiliary input output power supply and mounting PL9000 0 0 0 0 M B O P S Meter display module and software 2 CUN e ORG ORS 5 zz 0 0 0 opa o 0 0 0 opa oO EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 0 0 0 OOOO 0 0 0 OOOO 0 0 0 0 0 0 0 0 Mounting bracket one per module group Auxiliary power supply 4 modules Three line LED display Touch screen LCD display GE Communicator EXT software single user GE Communicator EXT software five users GE Communicator EXT software single site 15 Specifications 1 5 1 1 5 2 CHAPTER 1 OVERVIEW Power Supply CONTROL POWER In pt Options iaicttribpiticicredean 90 to 276 V AC DC 18 to 60 V DC FFequerney aee 20 to 400 Hz Burden tnter 20 VA maximum Inputs INPUT CURRENT INPUTS certet 0 25 A 1A 5 A specified upon ordering 10 A maximum for 5 A input programmable to any CT ratio Fault current recording 60 A peak secondary based on 5 A full scale INPUT VOLTAGE Raiden deett pate nd 150 V phase to neutral 300 V pha
75. are for example only Double click on any of the settings the CT and PT Ratios screen appears PT Ratio Line to Neutral Priman oltage p Hookup Voltage 300 Volt Option Only Operational Frequency Range 20Hz to 65Hz Make changes to this screen according to the requirements of your application gt When you change a PT or CT Ratio EPM 9000 Advanced Power Quality Metering System updates the corresponding Full Scale value entered in the Limit and Waveform Full Scales setting gt When you click OK on this screen EPM 9000 Advanced Power Quality Metering System opens the Limit amp Waveform Full Scales window so that you can verify the settings see section 7 3 2 D Using the pull down menu choose the hook up mode that matches the connection you have to the meter Choose from one of the following 4 Wire 3 Element Direct Voltage 4 CTs 4 Wire 2 5 or 3 Element Wye 3 or 4 CTs 3 Wire Delta 2 or 3 CTs 3 Wire Delta Direct Voltage 3 CTs or 4 Wire Grounded Delta 4 CTs See the EPM 9650 Installation and Operation Manual for diagrams IE Changes to the Operational Frequency Range do not change the Full Scale value for y Frequency Changes must be made in the Limits and Waveform Full Scales screen Like voltage and current the nominal value should be used For example 50 for 50Hz gt Click OK The following screen asks you to verify the Kh Ke Ratio for the Test Pulse Setting Kh Ke
76. ate different loads providing a total picture of the load and its component parts This can be used to accumulate and aggregate other utilities such as water and gas data 1 2 5 Advanced Data Logging Features The EPM 9450 9650 series meters utilize two separate logs of historical information In addition to all power parameters the historical logs allow users to trend data from remote input output devices Furthermore circuit breaker pressure transformer temperature or any other analog or digital parameter can be monitored This can be used to conduct preventative maintenance on critical equipment as well as power analysis e Primary historical trending log file Log 1 Log any measured parameter from either the main unit or any of the option modules Either 8 16 32 or 64 values can be logged per programmable interval e Secondary historical trending log file Log 2 This log can be set up as an additional historical interval log or as an exclusive energy log Either 8 16 32 or 64 values can be logged per interval e Out of limit log The units offer an independent out of limit log This allows a user to download out of limit information to obtain a sequence of events for any occurrence Utilizing the 1 ms clock resolution the logs can be combined with different metered points through a distribution system to provide an accurate system wide depiction of a power disturbance e Event triggered waveform recording log The EPM 9450 9650
77. ation and usage of the external input output modules EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW 1 3 50160 Flicker 13 1 Description The EPM 9450 9650 provides EN 50160 flicker evaluation in instantaneous short term and long term forms Flicker is the sensation that is experienced by the human visual system when it is subjected to changes occurring in the illumination intensity of light sources The primary effects of flicker are headaches irritability and sometimes epilepsy IEC 61000 4 15 and former IEC 868 describe methods used to determine flicker severity This phenomenon is strictly related to the sensitivity and the reaction of individuals It can only be studied on a statistical basis by setting up suitable experiments among people 1 3 2 Theory of Operation Flicker can be caused by voltage variations which are caused by variable loads such as arc furnaces laser printers and microwave ovens To model the eye brain change a complex physiological process the signal from the power network has to be processed while conforming with figure below Simulation of eye brain response A Block 1 Block 2 Block 3 Block 4 Block 5 Voltage detector A D and gain converter control High pass First order sampling sliding rate 250 Hz mean filter Minimum 64 level classifier Output t interface Square law fiter Weighting demodulator DC filter Input voltage remove adapter Prog
78. aximum apparent power and frequency inimum apparent power and frequency aximum total power factor quadrant 1 inimum total power factor quadrant 1 inimum total power factor quadrant 2 M M M Maximum total power factor quadrant 2 M Maximum total power factor quadrant 3 M inimum total power factor quadrant 3 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS e Maximum total power factor quadrant 4 e Minimum total power factor quadrant 4 Group 6 delivered energy metering Use the LEFT RIGHT arrows to access the following readings in order e Real energy quadrants 1 4 primary e Real energy quadrant 1 primary e Positive reactive energy quadrants 1 and 4 primary e Negative reactive energy quadrant 4 primary Group 7 received energy metering Use the LEFT RIGHT arrows to access the following readings in order e Real energy quadrants 2 3 primary e Real energy quadrant 2 primary e Positive reactive energy quadrants 2 and 3 primary e Negative reactive energy quadrant 3 primary Group 8 accumulations metering Use the LEFT RIGHT arrows to access the following readings in order tfor phases A B and C V tfor phases A B and C Group 9 phase angle metering Use the LEFT RIGHT arrows to access the following readings in order e Phase angles for voltages Van Vay and Vey e Phase angles for currents l4 Ip and Ic e Phas
79. ber of bytes selected by the Data Size field Example For a four byte Data Point the bytes can be arranged in any order for polling Display Modulo Offset Depending on the Data Point select one or more additional options with appropriate subselections Display For certain Data Points interpretation and display options are offered EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Example For An Angle values you can represent and display as 0 to 360 degrees or 180 to 180 degrees etc Selections will appear in a pull down menu for the associated point Modulo Certain values are cumulative and can roll over and start recounting from zero For those values where required you can enter a point at which the rollover will occur Offset Where allowed you can enter a value offset which will be added to the data point when it is computed EPM 9450 Custom Modbus Map This screen appears if the connected device is an EPM 9450 EPM 9650 Custom Modbus Map Modbus Ma Line Point Modbus 412289 Device Name 412297 1 Cycle Block Time Stamp 412301 1 Cycle Current A B C 412303 1 Cycle Current A B C 412305 1 Cycle Current A B C 412307 1 Cycle Measured N Current 412309 1 Cycle Calculated N Current 412311 Tenth Second Current A B C 412313 Tenth Second Current A B C 412315 Tenth Second Current A B C 412317 Tenth Second Phase to Phase Volts 412319
80. ccess these values EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 13 CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 14 Time of use Accumulations Page Touch the DEMAND button to proceed to the time of use register demand pages Touch the NEXT REG button to scroll through registers 1 through 8 and the totals gt Touch the NEXT GROUP button to scroll between the prior season the prior month the current season and the current month values The TOU register demand pages display the time of use register demands e Real and reactive power demand block fixed window average in watts and vars respectively e Coincident reactive power demand block fixed window average in vars gt Touch the DEMAND button in the time of use accumulations page to display the time of use register demand pages FIGURE 4 15 Time of use Register Demand Page Touch the ACCUM button to return to the time of use accumulations page 4 14 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS gt Touch the NEXT REG button to scroll through registers 1 through 8 and the totals gt Touch the NEXT GROUP button to scroll between the prior season the prior month the current season and the current month values gt Press the MAIN button to return to the main menu page 4 2 9 Flicker Pages The flicker pages display instantaneous short term and long term flicker infor
81. ct resistors at each end to the and lines The resistance of Rr is approximately 120 ohms S Bl Al S Bl Al 5 Bl S Bl Al FIGURE 5 10 Linking Multiple Meters EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 11 5 2 5 CHAPTER 5 COMMUNICATIONS Remote Communications over Telephone Lines The use of modems dedicated or dial up is recommended when devices are at great distances For units without the built in modem option RS485 wiring with a GE Multilin F485 converter is recommended PSTN public switched telephone Remote PC Local network Remote EPM 9000 meter modem modem RS232 line Null modem adapter or null modem cable required FIGURE 5 11 RS232 Remote Connections Telephone Remote PC Originate line Remote modem modem EPM 9000 meter RS485 line Null modem adapter required if the RS232 to RS485 converter does not support GE Multilin 485 converter DTE DCE configuration or equivalent FIGURE 5 12 RS485 Remote Connections The RS485 link is reliable up to 4000 feet 1219 meters Set an appropriate baud rate and enable the Modbus ASCII protocol An RS485 to RS232 converter is also required for the RS485 link GE recommends the GE Multilin F485 converter See Programming Modems for Remote Communications on page 5 15 for additional details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS When the telep
82. d of a squaring multiplier and a low pass filter The human flicker sensation via lamp eye and brain is simulated by the combined non linear response of ocks 2 3 and 4 ock 5 allows direct calculation of the evaluation parameters and Pj B Block 5 performs an online statistical cumulative probability analysis of the flicker level B F icker is computed using the three phase to neutral voltages in wye configurations and the three phase to phase voltages when in delta Evaluation occurs in the following forms instantaneous short term or long term Each form is detailed below 1 3 3 Instantaneous Flicker Evaluation An output of 1 00 from Block 4 corresponds to the reference human flicker perceptibility threshold for 5096 of the population This value is measured in perceptibility units PU and is labeled Pj lt This ia a real time value and it is continuously updated 1 3 4 Short term Flicker Evaluation An output of 1 00 from Block 5 corresponding to the value corresponds to the conventional threshold of irritability per IEC 1000 3 3 To evaluate flicker severity two parameters have been defined one for the short term called defined in this section and one for the long term called Pj defined in the next section The standard measurement time for P is 10 minutes P is derived from the time at level statistics obtained from the level classifier in Block 5 of the flicker meter The following formula i
83. dated Voltage 6 _ Fifty Milisecond Updated Current C 1 One Second Updated VA Total 1 373350 OR 8 OneSecond Updated Var Total i 872 55 OR 9 One Second Updated Watt Total 3822 60 OR 0 986 LEAD AND 11 Fifty Miliecond Updated VA Total 1 7 4105 14 OR 12 Fifty Milisecond Updated Var Total R 7 664 80 OR 13 Fifty Milisecond Updated Watt Total 4 1 4105 14 OR 14 One Second Updated THD Current A 1 3 00 OR Percentage of Full Scale settings The limits are set in 96 of full scale 96 of FS so that when a user creates a profile that limit setting will be constant This is true even though the CT and PT Ratios change when the meter or a new meter is placed in a different location Changing the CT and PT Ratios will not effect the 96 of full scale limits previously set This is useful when using large numbers at meters Make changes to this screen according to the requirements of your application gt To set the type of limit and the channel assigned to it double click in either the Type or Channel column gt From the pop up menu choose the desired settings and click OK gt To designate the limit as either Above or Below a percentage of the Full Scale click once in each Settings column and select the desired setting from the pull down menu gt To set the percentage of the Full Scale at which the limit will trip enter the value in the of FS column EPM 9000 Advanced Power Quality Meteri
84. dress set for the port that is connected to the bus Type in unique address gt Baud Rate The baud rate entered in this field must match the baud rate of the device that will be connected to the Primary Meter at this port Use 9600 for modem connections From the pull down menu select 4800 9600 19200 38400 57600 or 115200 Data Bits for Modbus RTU and ASCII leave the Data Bits at 8 Other protocols may require a different setting Use the pull down menu to select from 5 6 7 or 8 gt Parity for Modbus RTU and ASCII leave the Parity at None Other protocols may require a different setting Use the pull down menu to select from None Even Odd Mark or Space 7 18 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Stop Bits for Modbus RTU and ASCII leave the Stop Bits at 1 Other protocols may require a different setting Use the pull down menu to select from 1 1 5 or 2 gt TxDelay Transmit Delay leave the TxDelay at Oms unless you are using equipment that requires a delay in the response time such as a radio modem Use the pull down menu to select from Oms 10ms 20ms 30ms 40ms 50ms 60ms 60ms or 70ms Protocol Direct Connections made through EPM 9000 Advanced Power Quality Metering System must use either Modbus RTU or Modbus ASCII protocol Modbus RTU is recommended Modem Connections made through EPM 9000 Advanced Power Quality Metering System mu
85. ds to download data or other actions authorized by the meter passwords Refer to Programming Modems for Remote Communications on page 5 15 for programming details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS 5 5 4 Dial out Function The dial out function allows the EPM 9450 9650 to automatically report certain conditions without user intervention The modem normally polls the meter to determine if any abnormal or reportable conditions exist The modem checks the following meter conditions and programmed events to determine if a call should be placed e Are any meter setpoint limits exceeded e Has the status of the high speed inputs changed e Has a waveform been recorded e Has a power quality event been recorded e Hasa control output changed e Has the meter experienced a loss of control power e either the history log approaching a full condition e sthe event log approaching a full condition Is any other log approaching a full condition e Has the modem password failed e Has communication with the meter failed If any of the monitored events exist the internal modem will automatically initiate a call to a specified location to make a report or perform some other function For log full conditions the EPM 9450 9650 will automatically download the log s that are nearing the full state The modem can be programmed to call two different numbers to make the required reports
86. e e Up to 136 measurement 64 binary inputs 8 binary counters 64 analog inputs can be mapped to DNP static points over 3000 in the customizable DNP point map e Up to 16 relays and 8 resets can be controlled through DNP level 2 e Report by exception processing DNP events deadbands can be set on a per point basis e Freeze commands Freeze Freeze No Ack Freeze with Time Freeze with Time No Ack EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW e Freeze with time commands enable the meter to have internal time driven frozen and frozen event data When the meter receives the time and interval the data will be created 1 2 5 Power Quality Measurement The EPM 9450 9650 features real time power quality monitoring and harmonic analysis to the 255th order Standard power quality measurement features include e 16 bit waveform and fault recorder The EPM 9450 9650 captures up to 512 samples per cycle for an event Voltage and current are recorded with pre and post event analysis Hardware and software triggers are available to activate a waveform reading which can be used for applications like power quality surveys fault analysis breaker timing and motor start up e Measure and record harmonics to the 255th order The EPM 9450 9650 measures harmonics up to the 255th order for each voltage and current channel Real time harmonics are resolved to the 128th order Percent THD and K factor are a
87. e e External display bootware DSP bootware and communications bootware e External display serial number Readings Comm Comm Comm Comm Return Settings Settings Settings Settings To Port 1 Port 2 Port 3 Port 4 First Reading PTRatio CTRatio Display Primary Secondary First Reading Run time Boot Serial Display Display Display Serial DSP Comm DSP Comm Monitor vo 2 O 500 Reading FIGURE 4 2 Information Mode Navigation Map EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 5 4 6 CHAPTER 4 OPERATING INSTRUCTIONS 4 1 4 Display Features Mode NOTE Use the MODE button to access the display features mode from other modes Use the UP DOWN arrows to navigate from group to group within this mode See FIGURE 4 3 Display Features Mode Navigation Map on page 4 7 for further details Group 1 reset maximum minimum values If the password protection feature has been enabled with the GE Communicator software you will need to enter a password to reset the maximum minimum readings To do this first press the ENTER button Then enter the password one character at a time by pressing on the UP or DOWN arrows Each password character begins as an A Press the UP arrow to increment the character from A to Z and then from 0 to 9 Press the DOWN arrow to decrement the character from A to 9 to 0 and then from Z to A Press SET to enter each character the password When the e
88. e angles for voltages Vag Vac and Ve e Phase sequence EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 3 CHAPTER 4 OPERATING INSTRUCTIONS Max THD Min THD Return to Volts Volts First AN BN CN AN BN CN Reading G r u p S 1 Second Volts Maximum Volts _ Minimum Volts o AB BC CA AB BC CA AB BC CA Reading 1 Second Maximum Minimum 96THD Max THD Min THD 1 Second Return to 1 Second Volts Maximum Volts Minimum Volts 96THO Volts AN BN CN AN BN CN AN BN CN AN BN CN Max kWatt Max kWatt kVAR Coln kVAR Coln kVAR kVAR Block WinAvg Max Pred Rol Win Avg kWatt kWatt kVAR Coln kVAR kVAR Coln kVAR Return to First Reading 1 Second kWatt kVAR IA IB IC IAIBJC IAIBIC IAIBIC IAIBJC IAJBJC INc INm ibo 1 Second Max Min kVA PF kVA kVA Max Q1 LJ Min Q1 LJMax Q2 LJ Min Q2 Max Q3 L Min Q3 LI Min Q4 LI Min Q4 lag Freq Freq Total PF Total PF Total Total Total PF Total Total PF Total PF Reading Positive Positive Negative Return to kVARhr kVAhr kVARhr First Q1 Q4 Q4 Reading Positive Positive kWatthour kVAhr Q1 Negative Positive Positive Positive Negative Return to kWatthr kVAhr kVARhr kVAhr kVARhr First Q2 03 Q2 Q2 Q3 Q3 Reading 7 gt i P Return to kI tA ki tB kV tA kv tB kV tC First Reading Phase Angles V Phase Angles Phase Angles V Phase Return to First AN BN CN A B C AB BC CA Sequence
89. e gate EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT To change items on the Relay Logic Tree use the following steps gt To change the selected relay and or relay modules select from the drop down menu at the upper right hand corner of the screen To change the relay Set Delay select from the drop down menu to the right of the Set Delay Label To change the Relay Reset Delay select from the drop down menu to the right of the Reset Delay Label gt clear an item from the Relay Tree click on that item then click the Clear Button To clear ALL ITEMS from the Relay Tree click the Clear Assigned Items Button In order to use this screen you must have purchased at least one External Relay Out module NOTE For more details about External Modules see Chapter 11 of this manual 7 5 3 Thresholds Waveform Recording The Power Quality PQ and Waveform Thresholds setting determines at what point the meter will execute a waveform capture and or record a power quality event See Chapter 8 for how to view logs PQ and waveform thresholds are given as a percentage of the Full Scale 96 of FS Set the Full Scale in the Limits and Waveform Full Scales section of the Device Profile section 3 4 Full Scales are based on the CT and PT ratios set in the CT PT Ratios and System Hookup section 7 3 gt Before programming the PQ and Waveform Thresholds
90. e new settings NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 125 7 3 7 6 CHAPTER 7 GE COMMUNICATOR EXT General Settings gt From the Device Profile screen see section 7 2 click on the button or double click on the General Settings line All of the settings in the General Settings group are listed Device Profile EX5 General Settings 1 j EX CT PT Ratios and System Hookup 4 Limit and Waveform Full Scales T EXS Time Settings Labels LV m EX Communications e EX5 DNP Custom Classes Map EXT Custom Modbus Map gt Click on the particular programmable setting you would like to program The settings will be detailed in the order on the Device Profile screen 7 3 1 CT and PT Ratios and System Hookup gt From the Device Profile screen see section 7 2 click on the button for General Settings then double click on the CT PT Ratios and System Hookup line The following submenu appears Device Profile EX General Settings 5 CT PT Ratios and System Hookup IAB C 1 00 1 00 INm 1 00 1 00 VAB C 1 001 00 VAUX 1 00 1 00 Hookup Wye Operational Frequency Range 20 65 Hz EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT This screen displays the current Device Profile s settings for CT PT ratios and connection type The values shown
91. e of the circuit connection and the relationships between the phase voltages and ground 2 4 2 Wye Connection The wye connection is so called because the phase relationships and the winding relationships between phases resemble the letter Y The following figure depicts the winding relationships for a wye connected service In a wye service the neutral or center point of the wye is typically grounded This leads to common voltages of 208 120 and 480 277 where the first number represents the phase to phase voltage and the second number represents the phase to ground voltage FIGURE 2 2 Three phase Wye Winding The three voltages are electrically separated by 120 Under balanced load conditions with unity power factor the currents are also separated by 120 However unbalanced loads and other conditions can cause the currents to depart from the ideal 120 separation Three phase voltages and currents are usually represented with a phasor diagram A phasor diagram for the typical connected voltages and currents is shown below 2 10 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND Vcn Vbn FIGURE 2 3 Three phase Voltage and Current Phasors for Wye Winding The phasor diagram shows the 120 angular separation between the phase voltages The phase to phase voltage in a balanced three phase wye system is 1 732 times the phase to neutral voltage The center point of the wye
92. e previously completed subinterval weighted by a programmable factor to predict the average of the upcoming subinterval During the next subinterval as actual power readings occur the value for the subinterval consists of the portion actually measured plus the prediction pro rated to the subinterval time remaining Using the previous settings of three 5 minute intervals and a new setting of 12096 prediction factor the working of the predictive window demand could be described as follows At 12 10 we have the average of the subintervals from 11 55 to 12 00 12 00 to 12 05 and 12 05 to 12 10 In five minutes we will have an average of the subintervals 12 00 to 12 05 and 12 05 to 12 10 which we know and 12 10 to 12 15 which we do not yet know As a guess we will use the last subinterval 12 05 to 12 10 as an approximation for the next subinterval 12 10 to 12 15 As a further refinement we will assume that the next subinterval might have a higher average 12096 than the last subinterval As we progress into the subinterval for example up to 12 11 the predictive window demand will be the average of the first two subintervals 12 00 to 12 05 12 05 to 12 10 the actual values of the current subinterval 12 10 to 12 11 and the prediction for the remainder of the subinterval 4 5 of 12096 of the 12 05 to 12 10 subinterval Consider the following definitions n number of subintervals subinterval length c partial subinterva
93. e pull down menus select a Group and Associated Channel value The software will complete the Map and Line values CHAPTER 7 GE COMMUNICATOR EXT Number of Registers The number of registers polled for this Data Point is automatically computed The number is dependent on the Data Size selected in the Data Size column Start Register Start Register numbers are automatically assigned The registers are assigned and adjusted automatically to take into account previous entries and data sizes This is the Start Number for the first register to use in polling Format From the pull down menu select a type of Format for a value such as Floating Integer etc Data Size From the pull down menu select the Number of Bytes you want to represent the Data Point Unit If the polled value is viewed as an integer the Unit field tells you where to place the decimal point Examples If you select 01 a polling value 1234 would be interpreted as 12 34 If you select 100 a polling value 1234 would be interpreted as 123400 Pri Sec The meter normally computes values in secondary units Where applicable you may select primary or secondary If Primary is selected the value is multiplied by the appropriate CT and or PT values Sign Abs Where appropriate you may have the option of having the data point computed as a signed or absolute value Byte Order For most of the Data Points the user can select the polling order of the num
94. e waveform pages display real time waveforms for the following channels Vy Vg and Vc channels e l4 lg and I channels The total harmonic distortion 96THD K factor and frequency is also displayed for the selected channel gt Press the WAVEFORM button in the main menu to display the real time waveform pages FIGURE 4 21 Real time Waveform Page Phase A Volts Touch the CHANNEL button to scroll through the various channels there are separate pages for each channel indicated above Press the MAIN button to return to the main menu page 4 18 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS 4 2 13 Spectrum Pages The spectrum pages display harmonic spectrum analysis for the following channels Vy Vg and Vc channels e l4 lg and I channels gt Press the SPECTRUM button on the main menu page to display the harmonic spectrum analysis pages FIGURE 4 22 Harmonic Spectrum Analysis Page Phase A Volts gt Use the IN and OUT keys on the lower right of the screen to zoom in and out for details gt Touch the CHANNEL button to scroll through the various channels there are separate pages for each channel indicated above gt Press the MAIN button to return to the main menu page 4 2 14 Trending Pages The trending pages display real time trending analysis for the following channels Van Ven Ven Vas Vac and Ve voltage channels l4 lg and
95. eger 412302 One Second Phase to Neutral Volts Unsigned Integer 412304 One Second Auxiliary Volts Unsigned Integer 412306 One Second Current A B C Unsigned Integer 412308 One Second Current A B C Unsigned Integer 412310 One Second Current A B C Unsigned Integer 412312 One Second Measured N Current Unsigned Integer 412314 One Second Calculated N Current Unsigned Integer 412316 One Second Phase to Phase Volts Unsigned Integer 412318 One Second Phase to Phase Volts Unsigned Integer 412320 One Second Phase to Phase Volts EAE uu Data entry is straightforward Each type of data is described below Note that not all selections will appear on the screen at the same time You have to scroll the screen from right to left to reach some of the functions Certain entries such as Format Data Size etc have different allowable selections depending on the data point used The pull down menu will automatically adjust to provide the appropriate selections for that data point iy Most Frequently Used Custom Modbus Map Readings are shown on table 7 2 below Data Point Selection There are two different ways to select a Data Point gt OR V EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE Refer to the Modbus Map and find the associated Line and Point for the value you want When you enter those values into the table the software will complete the associated Group and Channel Double click the Group field From th
96. et the threshold for a PQ Event and Waveform capture enter the desired percentage of Full Scale in the Value column of the Above Setpoint and Below Setpoint sections Full Scales are shown in the lower right corner of the screen Note on CBEMA The CBEMA plotting is a power quality standard known world wide for recording the amount of damage voltage transient conditions have done to the equipment being monitored The meter automatically records this information For CBEMA purposes the user programs internal set points for voltage below 90 and above 110 of full scale 10 from the nominal voltage These setpoints are defined by the ITI CBEMA specification The ITI CBEMA Curve is published by Information Technology Industry Council ITI and is available at http www itic org iss_pol techdocs curve pdf A user can set a recording with tighter voltage limits to trigger a waveform recording However CBEMA plotting will be based only on the limits internally set Note on Setting the EPM 9450 9650 Meter to Record Current Faults As discussed the voltage setpoints are used to record voltage type events such as voltage surges sags and transients The current settings are used to record faults on the line or in rush currents from devices such as motors Typically to catch these events set the limit to above 20096 of full scale EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT
97. eway Ethernet gateway or RS485 connection Expandable input output modules External display RJ11 or RJ45 connection modem Ethernet option only EPM 9000 OS V S V SC s i5 ic in an 0161016 FIGURE 2 1 The EPM 9450 9650 System EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 2 EPM 9450 9650 Calculations 2 2 1 Description The EPM 9000 Advanced Power Quality Metering System measures many different power parameters This section illustrates the formulas used to perform calculations with samples for Wye and Delta services e Samples for Wye Van Vbn Vcn la Ib Ic In e Samples for Delta Vab Vbc la Ib Ic 2 2 2 Voltage The Root Mean Square RMS of phase to neutral voltages for Wye connections is shown below where nis the number of samples x represents an bn cn EQ 2 1 The Root Mean Square RMS of phase to phase voltages for Wye connections is shown below where nis the number of samples X y represents an bn bn cn cn an 4 2 t 1 VRMS ene EQ 2 2 The Root Mean Square RMS of phase to phase voltages for Delta connections is shown below where nis the number of samples xy represents ab bc ca EQ 2 3 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 3 CHAPTER 2 ELECTRICAL BACKGROUND 2 2 5 Curre
98. gs for Log 1 double click on Log 1 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 51 CHAPTER 7 GE COMMUNICATOR EXT To change the settings for Log 2 click on Log 2 The Snapshot Channel Assignment Log 1 or 2 screen appears Make changes to this screen according to the requirements of your application gt gt Type Using pull down menu select the type of snapshot Channel Using pull down menu select a channel for the snapshot Click on Add to include the selections in the Log click on Remove to delete To remove multiple items hold Control while clicking items to be removed Click Remove To remove a range of items click the first item hold Shift then click the last item Click Remove When all changes are entered click OK to return to the main Device Profile screen Click on the Update Device button This sends the new profile Reset Logs Total bytes used and Bytes remaining screens display the memory status for that particular file meter assumes 256 bytes of memory for each file Total memory is determined at time of purchase EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 5 10 Pad Missing Records for Historical Logs When the meter is not in normal operation it will not record any data for Log 1 and Log 2 For example during firmware updates or loss of power data will not be saved Some applications may require data l
99. he groups listed below With the buttons at the bottom of the screen you can use the touch screen to review Limits and review and or change settings on the display and the EPM 9450 9650 Also you can reset maximum minimum values and demand hour t and Vt counters all logs and time of use TOU for the current session and month using the RESET button All screens have a MAIN button that returns you to the main screen below All screens also have a NEXT button that will take you to the next group of readings Some of the screens have additional navigation buttons to take you to complimentary readings FIGURE 4 4 External LCD Screen Main Menu on page 4 8 for further details General page Power MONITORING METER DESIGNATION GENERAL REALTIME PHASORS VOLTS DEMAND WAVEFORM AMPS ENERGY SPECTRUM TREND Lum Lux LIMITS SETTINGS Groups of readings Reset button View limits View change settings FIGURE 4 4 External LCD Screen Main Menu 4 2 2 General Page e The general page displays an overview of real time readings e Voltages Vaw Vay Vern Vas Vac and e Currents 4 lg and Ic e Real reactive and apparent power e Power factor Frequency Touch the GENERAL button on the main menu page to access these values 4 8 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 5 General
100. he main menu page or the DEMAND button on the real time power page to access these values FIGURE 4 12 Power Demand Page Press the R T button to return to the real time power page or the MAIN button to return to the main menu page 4 12 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS 4 2 7 Energy Page The energy page displays accumulated energy information e Negative real energy quadrants 2 3 primary Positive apparent energy quadrants 2 and 3 primary Positive reactive energy quadrant 2 primary e Negative reactive energy quadrant 3 primary Positive real energy quadrants 1 4 primary e Reactive energy for all quadrants primary gt Touch the ENERGY button on the main menu page to access these values FIGURE 4 13 Energy Metering Page Press the TOU button to continue to the time of use accumulations page or the MAIN button to return to the main menu page 4 9 8 Time of use Pages The time of use page displays the time of use accumulations e Negative real energy quadrants 2 3 primary Positive apparent energy quadrants 2 and 3 primary Positive reactive energy quadrant 2 primary e Negative reactive energy quadrant 3 and 4 primary Positive real energy quadrants 1 4 primary Positive apparent energy quadrants 1 and 4 primary gt Touch the TOU button on the main menu page or the TOU button on the energy page to a
101. hone lines are at great distances use the RJ11 port This connection requires no additional hardware Standard telephone wall to phone cabling can be used and is widely available in many lengths Plug one end into the EPM 9450 9650 and the other to the wall jack Refer to FIGURE 5 2 RJ11 Connection Overview on page 5 3 for details EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 13 5 3 5 14 CHAPTER 5 COMMUNICATIONS RJ11 Modem Connections Description The internal modem option for the EPM 9450 9650 provides a direct connection to a standard telephone line No additional hardware is required to establish a communication connection between the meter and a remote computer The modem operates at speeds up to 56 kbps The internal connection between the modem and the meter includes a memory buffer This enables the modem to connect to the phone line at any speed and to change speed during the communication connection to the remote PC The buffer between the meter and the modem allows the meter to communicate into the modem at a constant speed while the modem telephone line speed can vary This eliminates the synchronizing problems that are common with other devices It also increases the effective throughput of the communication channel This in turn decreases connection time and connection costs The modem supports both incoming calls from a remote computer and automatic dial out calls when a defined event must be auto
102. ick Disable or to Enable click one of the following Fe only Cu only or Both Fe and Cu With the second pull down menu select from the following EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT e Add to Watts and Subtract from VAR e Subtract from Watts and Add to VAR e Add to Watts and VAR e Subtract from Watts and VAR The Enhanced 9650 has a third pull down menu to apply the loss based on the power flow direction From the menu select one of the following e Both Watts and Watts e Watts only e Watts only Warning Do NOT use the last settings if you do not have the appropriate firmware Check with Technical Support if you have a question WARNING When all settings are complete click OK to return to the main Device Profile screen For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter 7 4 6 Cold Load Pickup gt From the Device Profile screen see section 7 2 click on the button beside Cold Load Pickup or double click on the Cold Load Pickup line The following submenu appears X5 Cold Load Pickup Time after control power is restored to start demand Disabled Minimum time control power must be off before using Cold Load Pickup 0 Second s On this screen the user sets the Cold Load Pickup Delay in minutes This value is the delay from the time control po
103. imit 1 or Limit 2 Column The Power Factor Programming Screen will appear Device Profile Power Factor Greeterthan Power Factor is broken into four quadrants The screen lets you set a limit in two of the four quardrants To set a limit D From the pull down menus select a Quadrant and Less Than or Greater Than Full Scales gt Type in the Power Factor number The graph will illustrate your selections by shading the Out of Limit bands The area of the graph not covered by shading is within Normal Operational Range Method 1 Quadrants Q1 Lag Q2 Lag Q3 Lead Q4 Lead gt To display a graph of Method 2 Quadrants Q1 Lag Q2 Lead Q3 Lag Q4 Lead go to the Programming Labels screen section 3 18 of the Device Profile D Inthe lower drop down menu click on Method 2 then return to the Limits screen gt Click on any PF setting This meter is a real four quadrant meter Therefore limits can be set for capacitive and inductive PF when generating or consuming power NOTE When all settings are complete click OK to return to the main Device Profile screen For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter Make sure you save Connected Device Settings A pop up screen will ask if you want to Reset Logs It is recommended that you reset logs when you change any settings that effect logs See sections 7 2 and 7 2 5
104. ince transformer loss compensation is the more common loss compensation method the meter has been designed for this application Line loss compensation is calculated in the meter using the same terms but the percent values are calculated by a different methodology as described in a subsequent section below In summary the EPM 9450 9650 transformer loss compensation e Performs calculations on each phase of the meter for every measurement taken Unbalanced loads are accurately handled e Calculates numerically eliminating the environmental affects that cause inaccuracies in electromechanical compensators e Performs bi directional loss compensation Requires no additional wiring the compensation occurs internally EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS e Imposes no additional electrical burden when performing loss compensation Loss compensation is applied to 1 second per phase watt var readings and because of this affects all subsequent readings based on 1 second per phase watt var readings This method results in loss compensation be applied to the following quantities e Total power e Demands per phase and total thermal block fixed window rolling sliding window and predictive window e Maximum and minimum demands e Energy accumulations e KYZ output of energy accumulations y Loss Compensation is disabled when the meter is placed in test mode NOTE
105. ine where it is simply impractical to install metering equipment Ownership may change at the midway point of a transmission line where there are no substation facilities In this case power metering must again be compensated This condition is shown below Point of ownership change FIGURE 4 38 Joint Ownership Line Metering Requiring Loss Compensation EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 31 CHAPTER 4 OPERATING INSTRUCTIONS A single meter cannot measure the losses in a transformer or transmission line directly It can however include computational corrections to calculate the losses and add or subtract those losses to the power flow measured at the meter location This is the method used for loss compensation in the EPM 9450 9650 meter The computational corrections used for transformer and transmission line loss compensation are similar Generically no load losses and full load losses are evaluated and a correction factor for each loss level is calculated However the calculation of the correction factors that must be programmed into the meter differ for the two different applications For this reason the two methodologies will be treated separately In the EPM 9450 9650 loss compensation is a technique that computationally accounts for active and reactive power losses The meter calculations are based on the formulas below These equations describe the amount of active watts and reactive vars power l
106. ion node with memory 60 Hz frequency system 50 Hz frequency system 120 208 V connection System frequency 0 277 480 V connection 1 System voltage UD gt a Control power 90 to 276 V AC DC power supply 18 to 60 V DC power supply 2MB 8 digital inputs 64 cycles waveform capture 162 day data log B As above with flicker with 4MB memory 66 days of data Communications O FourRS485 communications ports user selectable RS485 Modbus and DNP 3 0 level 2 no modem or Ethernet connection 1 10 100 Base T Ethernet 2 2RS485 ports and 56 kbps dial out modem o Features 1 10 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 4 External Modules The following external modules are available NOTE Analog output modules i M A O 1 M A O 2 M A 2 O M A OFS 53 Analog input modules PL9000 1S MI 8 A il 8 A 2 8 A 3 8 A 4 0 0 0 0 0 35 2 9 opa ops O O O ON Digital input output modules 4 R 0 il 4 P 0 1 8 D il 0 0 0 0 0 0 o 5 Oo o0 O O O ON 0 0 0 opd opa 0 0 0 Ooo0 0 O O O ON 0 0 0 0 CHAPTER 1 OVERVIEW iy External modules and accessories must be ordered separately from base meters Four channel 0 to 1 mA analog outputs Eight channel 0 to 1 mA analog outputs Four channel 4 to 20 mA analog outputs Eight channel 4 to 20 mA analog outputs Eight ch
107. is manual The EPM 9450 supports DNP V3 00 Level 1 The lower screen shown here appears if the connected device is an EPM 9450 Click on the arrow to the right of the Edit View window Select the type of reading you want to edit or view Select a Port and a Class 0 1 2 or 3 for that reading A Compressed Map creates a number sequence starting with 0 for only those points selected for a Class A Non Compressed Map like the one shown follows exactly the original DNP Mapping The Compressed Map is a more efficient way to search for assigned values Refer to DNP Manual Revision 1 4 for details Click Enable DNP Time Sychronization if you would like to set the time through DNP When Time Synchronization is Enabled a Sync Interval pull down menu appears The Sync Interval can be set from 1 Minute up to 1 Day in 1 minute intervals The Factory Initial Setting is 1 Day The EPM 9450 meter initiates the Time Synchronization sequence by sending the appropriate response to the Master connected to the meter The meter continues to synchronize time by sending the appropriate response to the Master every time the Selected Interval is reached gt When all changes are entered click OK to return to the main Device Profile screen For these changes to take effect you must click on the Update Device button This sends the new profile to the meter Example The DNP Level 1 screen shown here displays a selection of 1 Sec
108. is setting will allow Excel to run in EPM 9000 Advanced Power Quality Metering System EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT In the Device Profile Transformer and Line Loss Compensation Window above Enter the percent Loss of Watts and Vars for copper and iron in the appropriate fields Enable or Disable Transformer Loss Compensation with the top pull down menu Click Disable or to Enable click one of the following Fe only Cu only or Both Fe and Cu With the second pull down menu select from the following e Add to Watts and Subtract from VAR e Subtract from Watts and Add to VAR e Add to Watts and VAR e Subtract from Watts and VAR Enhanced E 9650 Units have additional choices and firmware to support the additional gt vy features A warning may appear if you DO NOT have an Enhanced Unit NOTE Warning The last Watt VAR Combinations are only available if you have an Enhanced Unit or the DSP Firmware Version is greater than 212 Check with Technical Support if you have WARNING a question When all settings are complete click OK to return to the main Device Profile screen Forthese changes to take effect you MUST click on the Update Device button This sends the new profile to the meter EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 353 CHAPTER 7 GE COMMUNICATOR EXT 7 4 5 Transformer Loss Compensation for Enhanced Un
109. is tied together and is typically grounded The following table indicates the common voltages used in the United States for wye connected systems Table 2 1 Common Phase Voltages on Wye Services Phase to ground Voltage Phase to phase Voltage 120 volts 208 volts 277 volts 480 volts 2400 volts 4160 volts 7200 volts 12470 volts 7620 volts 13200 volts Usually a wye connected service will have four wires three wires for the phases and one for the neutral The three phase wires connect to the three phases The neutral wire is typically tied to the ground or center point of the wye refer to the Three phase Wye Winding diagram above In many industrial applications the facility will be fed with a four wire wye service but only three wires will be run to individual loads The load is then often referred to as a delta connected load but the service to the facility is still a wye service it contains four wires if the circuit is traced back to its source usually a transformer In this type of connection the phase to ground voltage will be the phase to ground voltage indicated in the table above even though a neutral or ground wire is not physically present at the load The transformer is the best place to determine the circuit connection type because this is a location where the voltage reference to ground can be conclusively identified EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE J CHAPTER 2 ELECTRI
110. its gt If you have an Enhanced E 9650 Unit double click on any loss value 96LWFE etc A similar Transformer Loss Compensation screen appears but with additional calculation choices Device Profile Transformer and Line Loss Compensation Percent Loss of Watts Due to Copper Percent Loss of VARS Due to Iron Due to Copper 0 000 Add to Watts and Subtract from VAR v Transformer and Line Loss Applies to Both Watts and Watts Y ox Jf ccs gt Click on TLC Calculator to find the values to enter into the Percent Loss windows The Calculator button will launch an Excel Spreadsheet which will do the calculations for you once the required data is entered A copy of the Excel Spreadsheet is in Appendix B of the GE Communicator EXT User Guide Warning GE Communicator will automatically launch the Excel Spreadsheet as part of its software package But for the TLC Button to work you must have the Excel program in your system If you do not have Excel software or if the spreadsheet file is not in the Communicator directory a Warning will be displayed instead of the worksheet You can do your own calculations using the hardcopy Transformer Loss Compensation Worksheet in Appendix B See NOTE in section 7 4 4 regarding Excel WARNING Enter the Percent Loss of Watts and Vars for copper and iron in the appropriate fields Enable or Disable Transformer Loss Compensation with the top pull down menu Cl
111. k type Call failure reset limit ho z Hour Enable password Identification Password Share the phone line 24 Violation limit Attempt Violation lockout time jo Hour Dial out on the following conditions M Limits status change gi CBEMA Power quality event gf Cycling of control power M High speed input change Control output change Modem password failure Waveform record captured Filling of meter memory Failure of communication with 9650 Log full limit threshold All Logs EU Edit port devices Any changes you make here may adversely affect communications For example if you change the baud rate of the port connected to a computer be sure to make the same change to the computer port s baud rate If you change a port s address be sure to update the address settings of any device that communicates with the port The baud rate of the port used by the meter s external display should always be set to 9600 and the address set The Edit Gateway Port Devices button at the bottom of the screen is used to enable up to 8 devices connected to the gateway to be monitored When the user clicks the Edit Gateway Port Devices button this screen is displayed EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Gateway Devices to be Monitored Device Enable Device Number Device Address gt Click on the box next to the Device to be monitored A Device Address will appear next to the En
112. ke to configure The settings are detailed in the order they appear in the Device Profile 7 5 1 Limits Limit settings are based on a percentage of the Full Scales 96 of FS which are set in the Limit and Waveform Full Scales section of the Device Profile Full Scales are based on CT and PT ratios set in the CT PT Ratios and System Hookup section of the Device Profile section 7 3 1 Before programming Limits set the CT and PT ratios first then set the Limit and Waveform Full Scales The software automatically updates the Full Scale However you can set it separately from the CT and PT Ratios gt From the Device Profile screen see section 7 2 click on the button beside Limits or double click on the Limits line The following submenu appears m LimitID 01 Fifty Millisecond Updated Voltage A N LimitID 02 Fifty Millisecond Updated Voltage B N LimitID 03 Fifty Millisecond Updated Voltage C N LimitID 04 Fifty Millisecond Updated Current A This screen displays the current Device Profile s settings for Limits Not all limits are shown above Limit ID extends to 32 7 40 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Double click on any of the settings Limit ID 01 etc The Limits screen appears Device Profile Limits Assigned Item Fifty Miliecond Updated Voltage A N 2 Fifty Millisecond Updated Voltage B N 3 Fifty Milisecond Up
113. l apparent power in VA for Wye connections is shown below VA VA VAg VAc EQ 2 12 The total apparent power in VA for Delta connections is shown below VA We VARs EQ 2 13 2 2 7 Power Factor The power factor is shown below where x represents A B C T for Wye connections and T for delta connections Wy x 2 2 8 Phase Angles Phase angles are calculated as follows where X A B or C ZO cos PF EQ 2 15 2 2 9 Total Harmonic Distortion The total harmonic distortion THD in 96 is shown below where x represents Vay Van Ver lA lg and Ic for wye connections x represents Vag Vac Vea Ia lg and Ic for delta connections 127 2 RMS h 2 RMS THD EQ 2 16 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 5 2 5 CHAPTER 2 ELECTRICAL BACKGROUND 2 2 10 K Factor The K factor is shown below where x represents l4 Ig and Ic 127 he RMS KFactor 1 EQ 2 17 127 2 RMS h 1 2 2 11 Energy Watt hour i Wr Wh gt Be EQ 2 18 t 1 VAR hour Rr VARh EQ 2 19 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 5 Demand Integrators 2 5 1 Description Power utilities take into account both energy consumption and peak demand when billing customers Peak demand expressed in kilowatts kW is the highest level of demand recorded during a set period of time called the interv
114. l converters provide supreme sampling accuracy and resolution The unit far exceeds ANSI C 12 and IEC 687 accuracy standards offering 0 04 watt hour accuracy To ensure optimum accuracy the unit auto adjusts to dual internal references accurate to 1 part per million In addition the EPM 9450 9650 uses an auto calibration technique that recalibrates the unit on the fly when the temperature changes more than 5 C for improved accuracy over the full temperature range Maximum minimum integration and recording The unit offers time stamped maximum and minimum values for every measured reading Real power kW readings are integrated using e Block fixed window Thermal window e Rolling sliding window e Predictive window EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW e Time of use TOU capability The EPM 9450 9650 offers comprehensive time of use capability Standard features include e Bi directional consumption and demand quantities e 20 year calendar 4 seasons year 12 holidays year Four 4 TOU schedules seasons e Prior month prior season storage e Present month present season storage e Transformer loss and line loss compensation The unit compensates for transformer and line losses Power reading compensation is conducted for both iron and copper losses e Load aggregation universal metering Using the status inputs the EPM 9450 9650 has the ability to count pulses and aggreg
115. l energy 0 0496 standard metering only Reactive energy 0 0696 standard metering only Apparent energy 0 06 standard metering only RESOLUTION Voltage es 5 digits CURT OIE Q 5 digits 0 001 Hz POWE qudd 5 digits Power factor s 3 digits FOEFBORICS tte 3 digits ENEO Y onilati 16 digits EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 13 CHAPTER 1 OVERVIEW HARMONICS OF s measures harmonics to 255th order for each voltage and current channel Resolution ced real time harmonics resolved to the 128th order DEMAND Measured phase A B C and neutral current in amps three phase real power in kW three phase reactive power in kvar three phase apparent power in kVA Measurement thermal exponential 1 to 9999 seconds block interval rolling demand 1 to 9999 seconds WAVEFORM CAPTURE 1 5 5 Data Logger 1 5 6 Display Samples cycle Cycles screen Cyles event Channels 16 8 pre 56 5760 7 32 4 pre 28 2880 Fi 64 4 pre 12 1536 7 128 1pre 7 768 7 256 1pre 3 384 3 512 1pre 3 384 1 512KB STORAGE OPTION Historical log 15 tete 176K RAM 58 days record size Historical log 2 RAM 256K RAM 42 days record size Out of limit log s 48K
116. l length p prediction factor Graphically these can be represented as follows Sub n Sub n 1 Sub 1 Sub 0 Partial Predict l l l l C l We have 1 vali Sub i EQ 2 20 c 1 Y val Partial EQ 2 21 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND The predictive window demand is n 2 Y val i na bs lc D Partial 1 xp EQ 2 22 n 2 Sub i i 0 Sub 0 Sub n 1 I c 2 n 1 5 xP EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 9 CHAPTER 2 ELECTRICAL BACKGROUND 2 4 Three Phase System Configurations 2 4 1 Description Three phase power is most commonly used in situations where large amounts of power will be used because it is a more effective way to transmit the power and because it provides a smoother delivery of power to the end load There are two commonly used connections for three phase power a wye connection or a delta connection Each connection has several different manifestations in actual use When attempting to determine the type of connection in use it is a good practice to follow the circuit back to the transformer that is serving the circuit It is often not possible to conclusively determine the correct circuit connection simply by counting the wires in the service or checking voltages Checking the transformer connection will provide conclusive evidenc
117. lso calculated Harmonic analysis allows users to conduct power quality analysis at the high end of the harmonic spectrum Waveform Analyst New Analysis E 81 xl 1 File Edit view Settings Utility Window Help lel xl exe a amp s 3 amp amp E3 Waveform Analyst Events Phase A Volts RMS VOLTS 4 Phase B Volts RMS VOLTS Phase C Volts RMS VOLTS Phase A Current RMS CURRENT E 3 E E di ALL Phase B Current RMS CURRENT icio ascia 204 9 WATTS 29 70k 31 30k 28 34k VOLT AMPS 29 73k 31 35k 28 35k VARS 1 32 7k 1 756k 811 2 POWER FACTOR 0 9990 0 9984 0 9996 V UNBALANCE 30000 KXXX OOK I UNBALANCE 30000 30000 30000 FREQUENCY 60 0 20000 20000 THD 1 29 2002 2 3 2002 00 00 00 000 00 00 00 000 Event Date Time 1 25 2002 15 46 14 934 272002 12 42 17 182 start a By a ll KS calendar Microsoft w Analyst ESwavetorm Analyst kek Othe 3 16 PM FIGURE 1 2 Waveform Analysis Reporting e Sub cycle transient recorder The unit records sub cycle transients on voltage and current readings It monitors switching noise from capacitors static transfer switches SCRs and many other power quality harmful devices Transients are often the cause of intermittent and expensive downtime and may cause damage to electrical equipment EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM
118. ltage variations e Pins represents the instantaneous flicker values in perceptibility units PU e P represents the value based on 10 minute analysis e Pyrepresents the value based on 12 P values The measurement procedure is as follows 1 Original signal with amplitude variations 2 Square demodulator 3 Weighted filter 4 Low pass filter first order 5 Statistical computing The following data is available e Pa and the maximum and minimum P values for long term recording e Py and the maximum and minimum Py values for long term recording EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 9 CHAPTER 1 OVERVIEW 14 Ordering 1 4 1 Order Codes The order codes for the EPM 9450 9650 meter are shown below Table 1 1 EPM 9450 9650 order codes Base unit PL9450 Power meter and data acquisition node System frequency 0 60 Hz frequency system 1 50Hzfrequency system System voltage A 120 208 V connection B 277 480V connection Control power 0 90to276 V AC DC power supply 1 18 to 60 V DC power supply A Features 512KB 8 digital inputs 8 cycles waveform capture 100 day data log Communications O Four RS485 communications ports user selectable RS485 Modbus and DNP 3 0 level 1 no modem or Ethernet connection 1 10 100 Base T Ethernet 2 Internal 56K modem with pass through port Base unit PL9650 Power meter and data acquisit
119. ma 6 00 Central Time US amp Can Mx 6 00 Daka City 7 00 Mountain Time US amp Canada 7 00 Bankok Hanoi Jakarta EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT Table 7 1 Greenwich Mean Time GMT Table Dublin London 8 00 Pacific Time US amp Canl 48 00 Beijing Hong Kong Singapore Tijuana 9 00 Alaska 9 00 Osaka Sapporo Seoul 10 00 Hawaii 10 00 Brisbane Melbourne Guam Hobart 11 00 Midway Island 11 00 Magadan Solomon Islands 12 00 Eniwetok 12 00 Auckland Fiji Daylight Savings Information Enable Enables an automatic adjustment for daylight savings Disable Disables an automatic adjustment for daylight savings Auto DST Sets Daylight Savings Time automatically for the United States only Time changes automatically occur at 2 00 AM your local time on the first Sunday in April and the last Sunday in October User Defined Allows you to set the Daylight Savings Time manually Start Set the Month Day and Hour when the adjustment for Daylight Savings will commence End Set the month day and hour when the adjustment for Daylight Savings will conclude Line Synchronization Set Enable or Disable and Frequency The basic function of Line Synchronization is to adjust the real time clock to track the time based on the power line frequency For this purpose Phase A voltage ONLY is used
120. matically reported Hardware Connection Units with an internal modem contain an RJ11 at the back of the meter A standard telephone RJ11 plug can connect the meter to a standard PSTN public switched telephone network The phone jack is the override of the modem function when the phone is in use When the EPM 9450 9650 is ordered with the internal modem option it contains dial in capability and provides remote access to other Modbus based serial devices via the EPM 9450 9650 RS485 gateway over a phone line The EPM 9450 9650 will recognize and respond to a Modbus address of 1 With any other address the command will pass through the gateway and become a virtual connection between the remote Modbus master and any Modbus slave connected to the RS485 gateway Dial in Function The modem continuously monitors the telephone line to detect an incoming call When an incoming call is detected the modem will wait for user defined number of rings and answer the call The modem can be programmed to check for a password on an incoming call In this case the modem will hang up on the incoming call if the correct password is not provided If several unsuccessful incoming call attempts are received in a set time period the modem will lock out future incoming calls for a user defined number of hours When an incoming call is successfully connected the control of communications is passed to the calling software The modem will respond to computer comman
121. mation The instantaneous flicker page displays e Time start reset stop current next Psr and next Pi e Status active or stopped Frequency e Base voltage gt Touch the FLICKER button on the main menu page to access these values FIGURE 4 16 Instantaneous Flicker Page gt Touch the SHORT TERM or LONG TERM buttons to display the short term and long term flicker pages respectively The START or STOP buttons will appear depending on the status gt Touch the SHORT TERM button in the instantaneous flicker or long term flicker page to display the short term flicker values e Phase A B and C voltages and associated Psy and time e Maximum phase A B and C voltages and associated Psy and time e Minimum phase A B and C voltages and associated Psy and time EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 15 CHAPTER 4 OPERATING INSTRUCTIONS FIGURE 4 17 Short term Flicker Page Touch the INST or LONG TERM buttons to display the instantaneous and long term flicker pages respectively The START or STOP buttons will appear depending on the status gt Touch the LONG TERM button in the instantaneous flicker or short term flicker page to display the short term flicker values e Phase A B and C voltages and associated Psy and time e Maximum phase A B and C voltages and associated Psy and time e Minimum phase A B and C voltages and associated Psy and time FIGURE 4 18 Long te
122. must be assigned a unique address Refer to the GE Communicator EXT manual for details on configuring and programming the input output modules Determine how many power sources are required for the number of modules in use Starting with the left most module and using a slotted screw driver fasten the first input output module to the left mounting bracket The left mounting bracket is the one with the PEM Fasten the internal screw tightly into the left mounting bracket gt Slide the female RS485 port into the male RS485 side port to connect the next input output module to the left module Fasten together enough to hold but do not tighten One by one combine the modules together using the integrated fastening system see diagram below If you require an additional power supply attach a GE Multilin PSIO power supply to the right of each group of four input output modules as shown in FIGURE 3 7 Input Output Modules With Psio Mounting Front View on page 3 5 Once all the input output modules have been grouped together fasten tightly This final tightening will lock the whole group together as a unit Attach the right mounting bracket to the right side of the group using small Phillips head screws provided Mount the group of modules on a secure flat surface This will ensure that all modules stay securely connected mouting brackets MBIO female RS485 side port LEDs input output port integra
123. n From the Device Profile screen section 3 2 click on the button beside Flicker Settings or double click on the Flicker Settings line This screen appears EN50160 Flicker Short term test time PST ho Minutes Long term test time PLT Minutes Frequency oo ZIG Por gt From the pull down menus select a Short term test time and a Long term test time gt From the Frequency pull down menu select 50 or 60 Hz D When all changes are entered click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter iy Flicker is discussed in detail in Chapter 15 of the GE Communicator EXT User Guide NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 5 5 Squared T and V Squared T Thresholds With the I Squared T and V Squared T Thresholds screen the user can set at what point the Current and Voltage should accumulate From the Device Profile screen section 7 2 click on the button beside Squared T and V Squared T or double click on the I Squared T and V Squared T line This screen appears I Squared T and Squared T Thresholds Squared E Accumulate when Currentis above 0 000 Amps NASA IET E Accumulate when Voltage is above 0 000 Volts B gt Input the desired thresholds
124. nd connections before drawing a conclusion Not being able to see harmonic distortion is not the same as not having harmonic distortion 2 7 4 Waveform Capture It is common in advanced meters to perform a function commonly referred to as waveform capture Waveform capture is the ability of a meter to capture a present picture of the voltage or current waveform for viewing and harmonic analysis Typically a waveform capture will be one or two cycles in duration and can be viewed as the actual waveform as a spectral view of the harmonic content or a tabular view showing the magnitude and phase shift of each harmonic value Data collected with waveform capture is typically not saved to memory Waveform capture is a real time data collection event Waveform capture should not be confused with waveform recording that is used to record multiple cycles of all voltage and current waveforms in response to a transient condition EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 8 Power Quality 2 8 1 Description Power quality can mean several different things The terms power quality and power quality problem have been applied to all types of conditions A simple definition of power quality problem is any voltage current or frequency deviation that results in misoperation or failure of customer equipment or systems The causes of power quality problems vary widely and may originate in the customer equi
125. nd Demand Intervals As seen in this example it is important to recognize the relationships between power energy and demand to effectively control loads or to correctly monitor use EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 17 2 6 CHAPTER 2 ELECTRICAL BACKGROUND Reactive Energy and Power Factor Real Reactive and Apparent Power The real power and energy measurements discussed in the previous section relate to the quantities that are most used in electrical systems But it is often not sufficient to only measure real power and energy Reactive power is a critical component of the total power picture because almost all real life applications have an impact on reactive power Reactive power and power factor concepts relate to both load and generation applications However this discussion will be limited to analysis of reactive power and power factor as they relate to loads To simplify the discussion generation will not be considered Real power and energy is the component of power that is the combination of the voltage and the value of corresponding current that is directly in phase with the voltage However in actual practice the total current is almost never in phase with the voltage Since the current is not in phase with the voltage it is necessary to consider both the in phase component and the component that is at quadrature angularly rotated 90 or perpendicular to the voltage The following figure sho
126. nected by a common node In the circuit of Figure 1 6 we must measure the power flow in three wires This will require three voltage coils and three current coils a three element meter Similar figures and conclusions could be reached for other circuit configurations involving delta connected loads EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 5 Power Energy And Demand 2 5 1 Description It is quite common to exchange power energy and demand without differentiating between the three Because this practice can lead to confusion the differences between these three measurements will be discussed 2 5 2 Power Power is an instantaneous reading The power reading provided by a meter is the present flow of watts Power is measured immediately just like current In many digital meters the power value is actually measured and calculated over a one second interval since it takes some amount of time to calculate the RMS values of voltage and current However this time interval is kept small to preserve the instantaneous nature of power 2 5 5 Energy Energy is always based upon some time increment it is the integration of power over a defined time increment Energy is an important value because almost all electric bills are based in part on the amount of energy consumed Typically electrical energy is measured in units of kilowatt hours kWh A kilowatt hour represents a constant load
127. ng System automatically calculates the Primary value gt The Combination Limit 3 is the logical combination of Limit 1 s state and Limit 2 s state EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 41 CHAPTER 7 GE COMMUNICATOR EXT Device Profile Limits Assigned Item 273 95 OR 273 95 OR 273 95 OR 4 90 OR 4 90 OR 4 90 OR 3739 50 OR 872 55 OR 3822 60 OR 0 986 LEAD AND 4105 14 OR 564 80 OR 4105 14 OR 3 00 OR Example 1 Limit ID 1 Type 1 Second Readings Channel Volts AN Limit 1 Setting Limit exceeded if Volts AN is below 12V Limit 2 Setting Limit exceeded if Volts AN is above 132V Combination Limit 3 Setting AND If Limit 1 AND Limit 2 are exceeded then Limit 3 is exceeded Example 2 Limit ID 1 Type 1 Second Readings Channel Volts AN Limit 1 Setting Limit exceeded if Volts AN is below 12V Limit 2 Setting Limit exceeded if Volts AN is above 132V Combination Limit 3 Setting OR If Limit 1 OR Limit 2 are exceeded then Limit 3 is exceeded To combine Limits of different Limit IDs use the Relay Logic Diagrams Full Scale settings are shown in the lower left of the screen These values are set in the Limits and Waveform Full Scales section of the Device Profile section 7 4 7 42 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT gt To set the Power Factor Limits double click on any of the Power Factor settings in the L
128. ng elements 3 e Meter base voltage 120 V e Meter base current 5 A The loss compensation values can be calculated by clicking the TLC Calculator button on the transformer loss screen of the EPM 9450 9650 device profile This will open the transformer loss calculation spreadsheet in Excel format 4 4 4 Transformer Loss Compensation Worksheet A copy of the transformer loss calculation spreadsheet with example numbers is available from the EPM 9450 9650 support documents section of the GE multilin website http www GEmultilin com as GET 8501 xls EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 5 Communications 5 1 Communications Wiring 5 1 1 Overview RS232 communication is used to connect a single EPM 9450 9650 with another device such as a computer RTU or PLC The link is viable for up to 50 feet 15 2 meters and is available only through the EPM 9450 9650 port 1 The selector switch beneath the port must be set to RS232 RS485 communication allows multiple meters to communicate with another device at a local or remote site The input output modules and the display use RS485 to communicate with the meter All RS485 links are viable for up to 4000 feet 1220 meters The EPM 9450 9650 ports 1 and 4 are two wire RS485 connections up to 115200 bps To use port 1 for RS485 set the selector switch acco
129. nt The Root Mean Square RMS of currents is shown below where nis the number of samples x represents a b c n for Wye connections x represents a b c for Delta connections EQ 2 4 2 2 4 Real Power The per phase real power in watts for Wye connections is shown below where nis the number of samples x represents a b and c n Dd Vinc qo W So EQ 2 5 The total real power in watts for Wye connections is shown below Wy W W W EQ 2 6 The total real power in watts for Delta connections is shown below where n is the number of samples n 2i VAB j Ady B Vates E Ci tel Ppa EQ 2 7 n 2 2 5 Reactive Power The per phase reactive power in vars for Wye connections is shown below where x represents a b c 2 VAR w EQ 2 8 The total reactive power in vars for Wye connections is shown below VAR VAR VAR VARc EQ 2 9 The total reactive power in vars for Delta connections is shown below where nis the number of samples 2 4 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND Vag Vea la Ic are RMS values 2 2 n n V ei Aw 2 BCh C EQ 2 10 2 2 VAR v l v el T RMS g 52 tz1 RMSgc nus te n n 2 2 6 Apparent Power The per phase apparent power in VA for Wye connections is shown below where x represents a b c VA VRMS laus EQ 2 11 The tota
130. nt power factor is calculated using the following equation Displacement PF cos0 EQ 2 24 where 0 is the angle between the voltage and the current see FIGURE 2 10 Voltage and Complex Current on page 2 18 In applications where the voltage and current are not distorted the total power factor will equal the displacement power factor But if harmonic distortion is present the two power factors will not be equal EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 19 CHAPTER 2 ELECTRICAL BACKGROUND 2 7 Harmonic distortion 2 7 1 Harmonics of a Non sinusoidal Waveform Harmonic distortion is primarily the result of high concentrations of non linear loads Devices such as computer power supplies variable speed drives and fluorescent light ballasts make current demands that do not match the sinusoidal waveform of AC electricity As a result the current waveform feeding these loads is periodic but not sinusoidal The following figure shows a normal sinusoidal current waveform with a period of a This example has no distortion 1000 4 500 Current amps eo 500 4 1000 4 FIGURE 2 11 Non distorted Current Waveform The figure below shows a current waveform with a slight amount of harmonic distortion The waveform is still periodic and is fluctuating at the normal 60 Hz frequency a 1 60 second However the waveform is not the smooth sinusoidal form seen above 1500 1000 500 Curren
131. nterval Window Hours s Minutes 0 Seconds r Rolling Sub intervals lt A A Rolling Average Interval Window 15 00 Minutes r Predictive Rolling Window Average 4 e Rolling Subintervals Set the number of Rolling Demand Subintervals in the Rolling Demand Window Subinterval Length X Number of Subintervals Length of Demand Interval Window Predictive Rolling Window Average Increasing the length of the Predictive Demand Window increases the accuracy of the prediction by including more of the current Demand Window up to 10096 Decreasing the length of the Prediction Window gives earlier warnings of High Demands gt When all changes are entered click OK to return to the main Device Profile screen For these changes to take effect you MUST click on the Update Device button to send the new profile to the meter EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 29 CHAPTER 7 GE COMMUNICATOR EXT 7 4 2 Internal KYZ Outputs and Test LED Settings The EPM 9450 9650 has no Internal KYZ Outputs The Internal KYZ Outputs settings allow you to assign a channel and determine other settings for the Heartbeat LED The EPM 9800 is available with the KYZ Output Option gt From the Device Profile screen section 7 2 click on the button
132. ntire password is shown on the display screen press ENTER If the password is correct you may then press ENTER again to reset the energy readings Press the ENTER button to reset the maximum and minimum values Group 2 reset energy Press the ENTER button to reset the energy values The previous note concerning password protection also applies to energy values Group 3 Display baud rate and address Group 4 Display communication protocol Group 5 and 6 are for GE Multilin use only Group 7 lamp test Press the ENTER button to conduct an LED test Group 8 display scroll on off Press the ENTER button to turn the scroll feature on or off When the scroll feature is on the external LED display will scroll through the first reading of each group in the dynamic readings mode If a button is pressed during the scroll scrolling pauses for one minute EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS Reset Max Min Reset Energy Baud Rate Address Communication Protocol wocoao GE Use Only GE Use Only Display Scroll On Off FIGURE 4 3 Display Features Mode Navigation Map EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 7 CHAPTER 4 OPERATING INSTRUCTIONS 4 2 Using the External LCD Module 4 2 1 Description The touch screen external LCD unit is ready to use upon power up Touching the buttons at the top of the screen will take you to t
133. nute interval 11 45 to 12 00 12 00 to 12 15 12 15 to 12 30 etc 2 3 4 Rolling sliding Window Demand Rolling window demand functions like multiple overlapping block window demands The programmable settings provided are the number and length of demand subintervals For every subinterval an average arithmetic mean of power readings over the subinterval is internally calculated This new subinterval average is then averaged arithmetic mean with as many previous subinterval averages as programmed to produce the rolling window demand For example with settings of three five minute subintervals subinterval averages are computed every five minutes 12 00 12 05 12 10 12 15 etc for power readings over the previous five minute interval 11 55 to 12 00 12 00 to 12 05 12 05 to 12 10 12 10 to 12 15 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE ger 2 B 2 505 2 3 6 CHAPTER 2 ELECTRICAL BACKGROUND etc Further every five minutes the subinterval averages are averaged in groups of three 12 00 12 05 12 10 12 05 12 10 12 15 etc to produce a fifteen 5 x 3 minute average every five minutes rolling sliding every five minutes 11 55 to 12 10 12 00 to 12 15 Predictive Window Demand Example Predictive window demand expands on the above rolling window demand Rolling window demand waits until the end of a subinterval to update the demand Predictive window demand uses the average of th
134. ogs to contain those missing records To remedy this problem you can gt Enable the feature in Options gt Log Retrieval gt Pad Log File Click the box in front of the feature gt Click OK This feature pads missing records for the Meter s Log 1 and Log 2 The software causes the Log Converter program to automatically pad the missing records with a value of 0 for each log retrieval process and stores them in the Log DB file By default if the meter s Trending Interval is set for Greater than 1 Hour the meter will always save a record on the hour in the Trending Logs EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 53 CHAPTER 7 GE COMMUNICATOR EXT 7 6 External Devices The setting of the Device Profile configures the meter s External Devices a variety of Output Modules configurable using the screen below gt From the Device Profile screen see section 7 2 double click on the External Output Modules line The following screen appears EPM Port Log Limit ID 4 AO Module 1 Click in the Type column and use the pull down menu to select the specific Output Module you wish to add and enter a unique address for each Use the Edit buttons to configure each module further V Click OK to return to the main Device Profile screen Forthese changes to take effect you MUST click on the Update Device button This sends the new profile to the meter For more details on Output Module
135. on the Load button A dialogue box will ask for the location of the saved profile Print a copy of the profile by clicking on the Report button The Report screen will appear Commext 3 0 20 Document Device Profile Report Model TEPM96S0 8 ID Number Offlme saved prolis Name News J NVRAM N A Firmware Versions Power Owection lousdrant 1 4 Delivered and Quadrant2 3 Received Block Window Sync Page 1 of 21 06 14 2006 11 22 24 Pegeiot2 Zoom WhotePage PrnRenge f cef CPP e _ Dove 7 4 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 2 1 Using the Report Page Page Arrows Select a page to view Zoom Adjust the Viewing Magnification Print Pages Adjust the Range of Pages to be printed at 10096 Buttons Copies How many copies do you want to print Print Pages Select indiviual pages to print Separate numbers by commas Print This screen sends you to Print Setup screen where you select printer properties paper and orientation Click OK to Print Save Save these selections for future use Done Exit the screen and return to the Device Profile screen iy If you change the Com settings for the meter you will not be able to communicate with the meter You will have to sign off and sign on again with th
136. ond Readings from Port 1 with No Class selected A Class can be assigned to certain readings Those readings will be collected by an RTU or similar device and displayed on your PC Other readings will be displayed in other classes at other frequencies or not at all g EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 3 8 Custom Modbus CHAPTER 7 GE COMMUNICATOR EXT The Custom Modbus Map for EPM 9650 can position up to 256 Registers lor the equivalent of 2K whichever is lower to readily provide the functionality you want from your Meter In addition you can customize selected values for Format Type Scaling Byte Order Data Size etc gt From the Device Profile screen section 3 2 click on the button EPM 9650 Custom Modbus Map 2 3 EE 5 10 12 13 14 15 16 Ki NOTE Modbus Map Number Start Line Point Registers Register 18 beside Custom Modbus Map or double click on the Custom Modbus Map line This screen appears 412289 Tenth Second Phase to Neutral Volts Unsigned Integer 412291 Tenth Second Phase to Neutral Volts Unsigned Integer 412293 Tenth Second Phase to Neutral Volts Unsigned Integer 412295 Tenth Second Current A B C Unsigned Integer 412296 Tenth Second Current A B C Unsigned Integer 412298 One Second Phase to Neutral Volts Unsigned Integer 412300 One Second Phase to Neutral Volts Unsigned Int
137. ons for each device on an RS485 bus Connect positive terminals to positive terminals and connect negative terminals to negative terminals Protect cables from sources of electrical noise Avoid both star and tee connections see FIGURE 5 7 Incorrect T and Star Topologies on page 5 8 No more than two cables should be connected at any one point on an RS485 network whether the connections are for devices converters or terminal strips Include all segments when calculating the total cable length of a network If there is no RS485 repeater the maximum length for cable connecting all devices is 4000 feet 1219 meters EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS A typical two wire RS485 connection is shown below SR R 1200 for runs typically longer than 500 ft R 120 for runs typically longer than 500 ft S BI FIGURE 5 6 Typical Two wire RS485 Connection Termination resistors R7 are generally used on both ends of longer length transmission lines The value of the termination resistors is determined by the electrical parameters of the cable y Termination resistors are only needed with runs typically more than 500 feet The meter has some level of termination internally and usually resistors are not needed NOTE Star and Tee connections must be avoided These are illustrated in the following figure EPM 9000 ADVANCED POWER QU
138. ost due to both iron and copper effects reflected to the secondary of the instrument transformers The total secondary watt loss Pigs is shown below V m Pioss 2 x 2 x 6L WCU xS EQ 4 1 C The total secondary var loss is shown below Vin 0 Im 0 Qioss 55 x XLVFE 3 LVCU KS aay EQ 4 2 Where Vp is the measured voltage V is the calculated point voltage m is the measured current is the calculated point current and Sg is the full scale secondary VA The values for LWFE LWCU 96LVFE and 96LVCU are derived from the transformer and meter information as demonstrated in following sections The calculated loss compensation values are added to or subtracted from the measured watts and vars The selection of adding or subtracting losses is made through the meter profile when programming the meter The meter uses the combination of the add subtract setting and the directional definition of power flow also in the profile to determine how to handle the losses Losses will be added to or subtracted from depending on whether add or subtract is selected the received power flow For example if losses are set to add to and received power equals 2000 kW and losses are equal to 20 kW then the total metered value with loss compensation would be 2020 kW for these same settings if the meter measured 2000 kW of delivered power the total metered value with loss compensation would be 1980 kW S
139. ot liable for special indirect or consequential damages or for loss of profit or for expenses sustained as a result of a device malfunction incorrect application or adjustment For complete text of Warranty including limitations and disclaimers refer to GE Multilin Standard Conditions of Sale EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE GE Consumer amp Industrial Multilin EPM 9000 Advanced Power Quality Metering System Chapter 7 GE Communicator EXT 7 1 Overview EPM 9000 Advanced Power Quality Metering System lets you configure an EPM 9450 9650 meter s Programmable Settings which are stored in the unit s Device Profile Click on the in front of each group of settings to view the menu EXT General Setings EXT Revenue and Energy Settings EX Power Quality and Alarm Setings EX Trending Protile Settings e External Output Modules The following is an overview of the procedure for configuring a meter EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE fad 2 Y NOTE wv NOTE v NOTE CHAPTER 7 GE COMMUNICATOR EXT 1 Retrieve the meter s Device Profile see section 7 2 2 Configure the Programmable Settings stored in the Device Profile sections 7 5 to 7 7 3 Sendthe new Device Profile back to the meter section 7 2 If you click the Save Load or Update buttons you MUST have a unique Meter Destination Label so that the file is saved loaded or
140. pment in an adjacent customer facility or with the utility In his book Power Quality Primer Barry Kennedy provided information on different types of power quality problems Some of that information is summarized in the following table Table 2 3 Typical Power Quality Problems Cause Disturbance Type Source s Impulse transient Transient voltage disturbance sub Lightning cycle duration Electrostatic discharge Load switching Capacitor switching Oscillatory Transient voltage sub cycle duration Line cable switching transient with Capacitor switching decay Load switching Sag swell RMS voltage multiple cycle duration Remote system faults Interruptions RMS voltage multiple second or System protection longer duration Circuit breakers Fuses Maintenance Undervoltage RMS voltage steady state multiple Motor starting Overvoltage second or longer duration Load variations Load dropping Voltage flicker RMS voltage steady state repetitive ntermittent loads condition Motor starting Arc furnaces Harmonic Steady state current or voltage long on linear loads distortion term duration System resonance It is often assumed that power quality problems originate with the utility While it is true that may power quality problems can originate with the utility system many problems originate with customer equipment Customer caused problems may manifest themselves inside the customer
141. quired Externally fuse the power supply with a 5 A fuse EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 7 3 8 CHAPTER 3 INSTALLATION 3 2 5 Wiring Diagrams Select a wiring diagram from that best suits your application then wire the EPM 9450 9650 exactly as shown For proper operation the voltage connection must be maintained and must correspond to the correct terminal Program the CT and PT ratios in the device profile section of the GE Communicator EXT software The associated wiring types are shown in the following table Table 3 2 EPM 9450 9650 associated wiring types Wiring description Figure Page 4 wire wye 3 element direct voltage with 4 CTs 3 8 3 9 4 wire wye 3 element with 3 PTs and 4 CTs 3 9 3 10 4 wire wye 3 element with 3 PTs and 3 CTs 3 10 3 11 3 wire 2 element open delta with 2 PTs and 3 CTs 3 11 3 12 3 wire 2 element open delta with 2 PTs and 2 CTs 3 12 3 13 3 wire 2 element delta direct voltage with 3 CTs 3 13 3 14 3 phase 4 wire wye 2 5 element with 2 PTs and 3 CTs 3 14 3 15 4 wire 3 element grounded delta with 4 CTs 3 15 3 16 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION The typical wiring diagram for the four wire wye three element direct voltage connection with four CTs is shown below Actual installation procedures materials equipment and connections must conform to applicable
142. r reading by 1 60 converting the time base from minutes to hours Table 2 2 Power and Energy Relationship over Time Time Interval Power Energy Accumulated Energy 1 minute 30 kW 0 50 kWh 0 50 kWh 2 minutes 50 kW 0 83 kWh 1 33 kWh 3 minutes 40 kW 0 67 kWh 2 00 kWh 4minutes 55kW O92kWh 292kWh 5 minutes 60 kW 1 00 kWh 3 92 kWh 6 minutes 60 kW 1 00 kWh 4 92 kWh 7 minutes 70 kW 1 17 kWh 6 09 kWh 8 minutes 70 kW 1 17 kWh 7 26 kWh 9 minutes 60 kw 1 00 kWh 8 26 kWh 10 minutes 70 kW 1 17 kWh 9 43 kWh 11 minutes 80 kw 1 33 kWh 10 76 kWh 12 minutes 50 kw 0 83 kWh 12 42 kWh 13 minutes 50 kw 0 83 kWh 12 42 kWh 14 minutes 70 kw 1 17 kWh 13 59 kWh 15 minutes 80 kw 1 33 kWh 14 92 kWh As shown in the above table the accumulated energy for the power load profile of the data in Power Use over Time on page 2 16 is 14 92 kWh EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 5 4 Demand Demand is also a time based value The demand is the average rate of energy use over time The actual label for demand is kilowatt hours hour but this is normally reduced to kilowatts This makes it easy to confuse demand with power But demand is not an instantaneous value To calculate demand it is necessary to accumulate the energy readings as illustrated in Power Use over Time on page 2 16 and adjust the energy reading to an hourly
143. ramming of short and long observation period Squaring multiplier Y Ouput recording Output and data display instantaneous flicker in Pst maximim minimum Pst perceptilbility units Pinst Plt maximum minimum Plt FIGURE 1 4 Simulation Of Eye Brain Response Block 1 consists of scaling circuitry and an automatic gain control function that normalizes input voltages to blocks 2 3 and 4 For the specified 50 Hz operation the voltage standard is 230 V RMS Block 2 recovers the voltage fluctuation by squaring the input voltage scaled to the reference level This simulates the behavior of a lamp Block 3 is composed of a cascade of two filters and a measuring range selector In this implementation a log classifier covers the full scale in use so the gain selection is automatic and not shown here The first filter eliminates the DC component and the double mains frequency components of the demodulated output The configuration consists of a 0 05 Hz Low High Pass filter and a six pole Butterworth low pass filter located at 35 Hz The second filter is a weighting filter that simulates the response of the human visual system to sinusoidal voltage fluctuations of a coiled filament gas filled lamp 60 W at 230 V The filter implementation of this function is as specified in IEC 61000 4 15 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 1 CHAPTER 1 OVERVIEW Block 4 is compose
144. rdingly Optional communication interfaces for internal modem with dial in dial out 10 100Base T Ethernet combination modem and Ethernet are available EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE oad 5 2 5 1 2 RJ11 Port CHAPTER 5 COMMUNICATIONS GE Multilin F485 RS485 to RS232 converter Up to 31 devices 4000 feet maximum F without a repeater connected in series via RS485 daisy chain a a RS232 Mee Nullmodem Ea Telephone line Modem Ip RS485 GE Multilin F485 2 eeeccocoocoocoo JJ eeeeeececec a7 eee radio RS485 232 converter cos 90000 FIGURE 5 1 Communications Overview The RJ 11 telephone line port allows an EPM 9450 9650 with the internal modem option to communicate with a PC No other hardware is necessary for this easy to use connection The EPM 9450 9650 with the internal modem option can connect via RS485 to other EPM meters in local or remote sites in a daisy chain configuration as depicted below The EPM 9450 9650 with the internal modem option has a unique label port 2 is labeled modem gateway To use RS485 to connect multiple EPM 9450 9650 meters the modem gateway must be used For more details refer to5 3 RJ11 Modem Connections on page 5 14 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS FIGURE 5 2 RJ11 Connection Overview 5 1 5 RJ45 Netwo
145. re subject to frequency variation X j l and X 1 joC EQ 2 25 At 60 Hz 377 but at 300 Hz 5th harmonic 1885 As frequency changes the impedance changes and system impedance characteristics that are normal at 60 Hz may be entirely different in the presence of higher order harmonic waves Traditionally the most common harmonics have been the low order odd frequencies such as the 3rd 5th 7th and 9th However newer non linear loads are introducing significant quantities of higher order harmonics 2 7 5 Voltage and Current Monitoring Since much voltage monitoring and almost all current monitoring is performed using instrument transformers the higher order harmonics are often not visible Instrument transformers are designed to pass 60 Hz quantities with high accuracy These devices when designed for accuracy at low frequency do not pass high frequencies with high EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE ed CHAPTER 2 ELECTRICAL BACKGROUND accuracy at frequencies above about 1200 Hz they pass almost no information So when instrument transformers are used they effectively filter out higher frequency harmonic distortion making it impossible to see However when monitors can be connected directly to the measured circuit such as direct connection to 480 V bus the user may often see higher order harmonic distortion An important rule in any harmonics study is to evaluate the type of equipment a
146. records waveforms with a resolution of up to 512 samples per cycle The amount of waveform recording is based on the amount of memory installed The unit records the waveform when a value goes out of limit and when the value returns to normal All information is time stamped to the nearest millisecond The eight on board high speed inputs can be tied to the waveform recording Record when the breaker tripped as compared to when the relay activated This is very useful for fault and breaker integrity analysis The unit can be programmed to take more than one recording every time an event occurs Thousands of cycles can be recorded per event EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 5 1 6 CHAPTER 1 OVERVIEW 1 2 6 Display Screens The EPM 9450 9650 can be ordered with either a three line LED display or an enhanced LCD touch screen display These displays allow for local viewing of energy data and the gathering of circuit diagnostic data such as voltage current harmonics and phasor information Refer to Chapter 4 for details 1 2 7 External Input Output Modules A variety of optional analog or digital input output modules mount externally to the EPM 9450 9650 socket meter The EPM 9450 9650 does not support internal input output modules Use an auxiliary power supply such as the PSIO to provide input output capability if more than four modules are used See Input Output Module Wiring on page 3 17 for details on install
147. result the disk would turn at a higher speed and register power supplied by each of the three wires According to Blondell s Theorem it was possible to reduce the number of elements under certain conditions For example a three phase three wire delta system could be correctly measured with two elements two potential coils and two current coils if the potential coils were connected between the three phases with one phase in common In a three phase four wire wye system it is necessary to use three elements Three voltage coils are connected between the three phases and the common neutral conductor A current coil is required in each of the three phases In modern digital meters Blondell s Theorem is still applied to obtain proper metering The difference in modern meters is that the digital meter measures each phase voltage and current and calculates the single phase power for each phase The meter then sums the three phase powers to a single three phase reading EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 2 13 CHAPTER 2 ELECTRICAL BACKGROUND Some digital meters calculate the individual phase power values one phase at a time This means the meter samples the voltage and current on one phase and calculates a power value Then it samples the second phase and calculates the power for the second phase Finally it samples the third phase and calculates that phase power After sampling all three phases the meter combines the
148. rk Connection The RJ45 network connection allows an EPM 9450 9650 with the internal network option to communicate with multiple PCs simultaneously No other hardware is necessary for this easy to use connection EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 53 CHAPTER 5 COMMUNICATIONS 10 100Base T Modbus TCP over Ethernet 000 000 000 000 EPM 302 eetet EEUU Y RJ45 network FIGURE 5 3 RJ45 Network Connection Overview 5 1 4 RS485 Ports NOTE The communications wiring overview for the RS485 ports is shown below The output modules and display require power connections to the positive and negative voltage terminals dashed lines For all communications the S terminal indicates the shield This connection is used to reference the EPM 9450 9650 port to the same potential as the source It is not an earth ground connection The shield must be connected to earth ground at one point Any port may be used to connect a display or RS485 master However for EPM 9450 9650 units with the internal modem port 2 will be labeled modem gateway Ports 1 3 and 4 will not change In this case the output modules must use port 4 port 3 is an alternate The external displays are shipped programmed to use port 3 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS RS485 master External display A B S V V a E 3 o e Y
149. rm Flicker Page gt Touch the INST or SHORT TERM buttons to display the instantaneous and long term flicker pages respectively The START or STOP buttons will appear depending on the status gt Press the MAIN button to return to the main menu page EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS 4 2 10 Limits Pages The limits page displays the limit status settings for all EPM 9450 9650 meters with IDs 1 through 32 For each ID number the type of reading value status in or out of limit and setting is shown Press the LIMITS button in the main menu to display the settings for meter IDs 1 through 8 FIGURE 4 19 Limits Page 1 gt Touch NEXT GROUP button to scroll to the next screen which displays the settings for meter IDs 9 to 16 Continue touching the NEXT GROUP button to view settings for meter IDs 17 to 24 and 25 to 32 4 2 11 Phasors Page The phasors page displays phase angles for the form indicated at the upper right portion of the screen e phase e phase angles for voltages Van Van Vcn Vas and Vea e phase angles for currents l4 Ig and lc EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 17 CHAPTER 4 OPERATING INSTRUCTIONS Press the PHASORS button in the main menu to display the phasor page FIGURE 4 20 Phasor Analysis Page Press the MAIN button to return to the main menu page 4 2 12 Waveform Pages Th
150. rrent from 1000 1 amps If you are not concerned with maximum accuracy you can use the standard Meter without specially ordering the M10 0 option to display readings from a 0 to 1 amp CT NOTE 7 3 3 Limit and Waveform Full Scales All Limit and Waveform settings sections 7 10 and 7 14 respectively are based on a percentage of the Full Scale Full Scales are based on the CT and PT ratios see see section 7 3 Be sure to set the CT and PT ratios first EPM 9000 Advanced Power Quality Metering System automatically recalculates the Full Scales every time the CT and PT ratios change and should be verified every time CT and PT Ratios are changed NOTE Changing the CT and PT Ratios Resets the meter clearing Logs and stored data This action prepares the meter for placement in a new installation or change of the Instrument Transformers EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 11 CHAPTER 7 GE COMMUNICATOR EXT gt From the Device Profile screen see section 7 2 click on the button beside Limit and Waveform Full Scales or double click on the Limit and Waveform Full Scales line The following submenu appears 8 5 TE IA B C Nc 5 00 INm 5 00 V AN BN CN 277 00 V AB BC CA 480 00 VAUX 277 00 Power Phase 1385 00 Power Total 4155 00 Frequency 60 00 This screen displays the current Device Profile s settings for the Limit and Waveform Full Scales The values shown are for ex
151. s refer to Chapter 10 of the GE Communicator EXT User Guide 7 54 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 7 Set and Retrieve Meter Time The meter uses its on board clock for time stamping any logs it is recording To set the meter s clock gt Select Tools gt Set Meter Time The meter s On board Clock screen appears Set EPM 9650 On Board Clock EF Month Day Year As Hour Minute Second LS ES Eo fd Use PC Time gt To synchronize the meter with your computer leave the Use PC Time box checked gt gt To set the date and time to be independent from the PC deselect the Use PC Time box and enter the time and date settings gt Click the Send button to update the meter s time settings To retrieve the meter s current time and date settings Select Tools gt Retrieve Meter Time The following screen appears Date and Running Time are displayed in LEDs If the IRIG B signal is present on the IRIG B Input of the Device a green IRIG B appears next to the time Click OK to return to the main EPM 9000 Advanced Power Quality Metering System screen Current EPM 9650 Device Time E EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 55 CHAPTER 7 GE COMMUNICATOR EXT 7 8 Reset Meter Information gt From the menu bar select Tools gt Reset Meter Information The following set of screens appears 650 Parameters
152. s advanced communication features that use multiple communication ports over open protocols The multi port design allows multiple simultaneous connections The EPM 9450 9650 provides a direct digital link to customers allowing them to gather selected data without effecting the meter or its data All of the advanced features of the EPM 9450 9650 are made available through industry standard Modbus and DNP 3 0 protocols No proprietary or closed protocols are used Standard communications features include e Four isolated high speed communication ports The EPM 9450 9650 offers four built in communication ports Each port can communicate independently using supported protocols Standard protocols include Modbus RTU ASCII and DNP 3 0 Logs and waveform events are available in Modbus format Ports 3 and 4 can be used asa Modbus master for input output modules e Eight built in digital high speed status inputs These inputs automatically sense whether the circuit is externally wetted If externally wetted the input will accept up to 400 V DC If internally wetted the unit supplies the needed voltage for the desired control application e High speed transducer outputs for control purposes EPM 9450 9650 offers 50 ms updates for all instantaneous readings The unit can be a high speed control transducer for power generation transmission line synchronization and other control schemes The EPM 9650 supports DNP V3 00 level 2 DNP level 2 features includ
153. s at midnight of the day before the start of the next season e Amonth ends at midnight of the month s billing day If the year ends and there is no new calendar TOU accumulations will stop If a calendar is present for the following year TOU accumulations continue until the next monthly bill date or next start of season is reached Accumulation can span into the following year If no following year is present the last accumulation for the year will end on 12 31 23 59 59 4 3 5 Prior Season and Month The EPM 9450 9650 stores accumulations for the prior time periods When the end of a billing period is reached the current period of time becomes prior The registers are then cleared and accumulations resume using the next set of TOU schedules and register assignments from the stored calendar Prior and current accumulations are always available EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 27 CHAPTER 4 OPERATING INSTRUCTIONS 4 3 4 Updating Replacing and Retrieving TOU Calendars The GE Communicator EXT software retrieves TOU calendars from the EPM 9450 9650 or from the computer s hard drive for review and edit A maximum of twenty yearly calendars can be stored in the EPM 9450 9650 at any given time These may be retrieved them one at a time a new calendar can be stored while a current calendar is in use Accumulations do not stop during calendar updates If a calendar is replaced while in use the accumulations for
154. s installed at local or remote locations On board mass memory enables the EPM 9450 9650 to retrieve and store multiple logs The internal modem or network option connects to a PC via standard phone line or Modbus TCP and a daisy chain of meters via an RS485 connection Eight high speed IRIG B input Four communication ports status inputs On board modem or Ethernet TCP IP RS232 eae N port awew wl o 9 x MOL d 9 9 Universal Tz power supply Power Leader Multilin BA o Rugged metal case Four current inputs Four voltage inputs FIGURE 1 1 Front View EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 1 1 1 2 1 2 Functionality CHAPTER 1 OVERVIEW Description Perfect for industrial commercial and utility applications the performance enhanced EPM 9450 9650 is the newest power meter in the industry The EPM 9450 9650 includes all the attributes required for the highest level of power quality analysis and communications From today s utility giants to Fortune 100 companies to local electrical municipals an effective energy management and power monitoring program is critical for success The EPM 9450 9650 is an advanced monitoring product providing the total picture of power usage and power quality for any metered point within a power distribution network allowing users to make power related decisions quickly and effectively 1 2 2 Advanced Communication Features The EPM 9450 9650 ha
155. s used Pa 0 0314Pp 0 0525P 0 0657P 0 28P 19 0 08P 59 EQ 1 1 where the percentiles Po 1 P4 P3 P19 and Ps are the flicker levels exceeded for 0 1 1 2 20 and 5096 of the time during the observation period respectively The suffix S in the formula indicates that the smoothed value should be used The smoothed values are obtained using the following formulas _ Pope Pit Pas Pis EQ 1 2 P3 Ditta EQ 1 3 pa Psos Dot sot n EQ 1 5 The 0 3 second memory time constant in the flicker meter ensures that Py 4 cannot change abruptly and no smoothing is needed for this percentile EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW 1 3 5 Long term Flicker Evaluation The 10 minute period on which the short term flicker severity is based is suitable for short duty cycle disturbances For flicker sources with long and variable duty cycles for example arc furnaces it is necessary to provide criteria for long term assessment For this purpose the long term Pj is derived from the short term values over an appropriate period By definition this is 12 short term values of 10 minutes each over a period of 2 hours The following formula is used EQ 1 6 where Pai i 1 2 3 are consecutive readings of the short term severity Pot 1 3 6 Summary In summary we have e Flicker is the changes in the illumination of light sources due to cyclical vo
156. se to phase for use with PTs 300 V phase to neutral 600 V phase to phase Direct BURDEN SENSE INPUTS Voltage inpl ts ete ret 0 05 VA maximum Current 0 005 VA maximum ISOLATION Inputs outputs isolated to 2500 V Communications ports isolated from each other Samples per cycle 512 maximum programmable ose et etitm 16 bit dual converters true RMS UPDATE TIME Instant 50 ms high speed instant readings Revenue 0 496 DIGITAL INPUTS ten 8 wet dry auto detect up to 300 V DC ANALOG TRANSDUCER SIGNAL INPUTS Modules ie ete 8 channel 0 to 1 mA bi directional 8 channel 0 to 20 mA bi directional 8 channel 0 to 5 V DC bi directional 8 channel 0 to 10 V DC bi directional MIEIDGS common mode ACGUFQCV seme meiden 0 25 of full scale Scaling nitent pte programmable EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 1 OVERVIEW 1 5 3 Outputs DIGITAL DRY RELAY CONTACT OUTPUTS DIGITAL SOLID STATE PULSE OUTPUTS form A or form C KYZ pulses Maximum pulse 66 20 pulses per second ANALOG TRANSDUCER SIGNAL OUTPUTS teretes 4 channel 0 to 1 mA bi directional analog outputs 8 channel 0 to 1 mA bi directional analog outputs 4 channel 0 to
157. settings currently stored in the connected meter Double click on the in front of each group to view the settings in that group gt Configure each of the programmable settings by clicking on the icon then double clicking on the selected parameter See sections 7 3 to 7 7 for details on editing each setting After you have finished configuring any or all of the programmable settings use the BUTTONS at the bottom of the screen to execute the following tasks EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE T 3 CHAPTER 7 GE COMMUNICATOR EXT Configure each of the programmable settings by clicking on the icon then double clicking on the selected parameter See sections 7 3 to 7 7 for details on editing each setting After you have finished configuring any or all of the programmable settings use the BUTTONS at the bottom of the screen to execute the following tasks Implement the changes by clicking on the Update Device button This sends the new edited Device Profile to the meter YOU MUST UPDATE THE METER DEVICE PROFILE FOR ANY OF THE PROGRAMMABLE SETTINGS TO TAKE EFFECT A warning will appear asking you if you want to Save Connected Device Settings Click on the settings you would like to save then proceed with the Update Store the profile for later use by clicking on the Save button A dialogue box will ask where you would like to save the profile Open a previously saved profile by clicking
158. settings to erase all previously programmed settings Set the modem to auto answer on N rings Set modem to ignore the DTR signal This is necessary to ensure connection with originate modem Set modem to disable flow control RS232 communication does not support this feature Setthe modem to write the new settings to activate the profile This places the settings into nonvolatile memory they will take effect after the modem powers up When programming the remote modem with a terminal program ensure the baud rate of the terminal program matches the meter baud rate Selected modem strings settings are shown below Table 5 2 Example Modem Strings Settings Modem String Setting Cardinal modem AT amp FEOF8 amp KONOS3 7 9 Zoom Faxmodem VFX V 32BIS 14 4K AT amp FO amp KOSO 1 amp W0 amp Y0 Zoom Faxmodem 56Kx Dual Mode AT amp FO amp KOS amp COSO 1 amp WOS amp YO US Robotics Sportster 33 6 Faxmodem AT amp FO amp N6 amp WOYO for 9600 baud DIP switch setting up up down down up up up down US Robotics Sportster 56K Faxmodem AT amp FO amp WOYO DIP switch setting up up down down up up up down EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATIONS 5 4 RJ45 Ethernet Connections 5 4 1 Overview The Ethernet RJ45 option conforms to the IEEE 802 3 10 100Base T specification using unshielded twisted pair UTP wiring This allows the use of inexpensive
159. st use Modbus ASCII only Use the pull down menu to select from Modbus RTU Modbus ASCII or DNP 3 0 See Chapter 2 for details Mode Port 3 or Port 4 only If you are using Output modules set one of these ports in Output Module mode Set the port to operate at 57600 baud To change the setting use the pull down menu to select Slave or Output Module Make other changes for your application gt Internal Network Option If your meter has the Internal Network Option see your Network Administrator for the correct settings Settings will vary from network to network gt Internal Modem Option If your meter has this option set the number of Rings to Answer from the pull down menu Set the Baud Rate to 57600 or to match your system baud rate EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 19 v NOTE CHAPTER 7 GE COMMUNICATOR EXT Dial Out Profile Click the Dial Out Profile button and the following screen appears Details on programming this screen and on the Modem Dial In Dial Out Function are in Chapter 9 of the GE Communicator EXT User Guide Modem Programming Primary phone number settings Secondary phone number settings Retry delay Retry delay Retry limit S z Attempt Retry limit Connection type Computer xi Connection type Computer Communications settings Modem settings Inactivity timeout limit jo Rings to answer Call delay timer limit 5 econd Callbac
160. stors are not generally not required for lengths less than 500 feet Each port on the EPM 9450 9650 is capable of delivering 12 VA of power Refer to the table below to determine the power requirements for input output modules and displays If the total power required exceeds 12 VA then an additional power source is required Table 5 1 External Modules Power Requirements and Default Settings Module Description Address Power requirement PL9000 1MAONAO Four channel 0 to 1 mA analog outputs 128 2 7 V PL9000 1MAONS8O Eight channel 0 to 1 mA analog outputs 128 3 2 VA PL9000 20MAONA Four channel 4 to 20 mA analog outputs 132 5 0 VA PL9000 20MAONS Eight channel 4 to 20 mA analog outputs 132 8 5 VA PL9000 4RO1 Four channel control relay outputs 156 2 7 V PL9000 4PO1 Four channel solid state pulse outputs 160 2 7 V PL9000 P40N Three line LED display 8 0 VA PL9000 P60N Touch screen LCD display 5 0 VA 5 2 4 Linking Multiple Devices A total of 31 meters may be connected in series on a single bus using RS485 The cable length may not exceed 4000 feet 1219 meters Before assembling the bus each meter must be assigned a unique address Connect the A and B terminals of each device Break the shield between the RS485 master and between device segments as shown below It is not an earth ground connection The shield must be connected to earth ground at one point Conne
161. t amps e 500 1000 1500 Jemen H n FIGURE 2 12 Distorted Current Waveform The distortion above can be modeled as the sum of several sinusoidal waveforms of frequencies that are multiples of the fundamental 60 Hz frequency This modeling is performed by mathematically reducing the distorted waveform into a collection of higher EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND frequency waveforms These higher frequency waveforms are referred to as harmonics The following figure shows the content of the harmonic frequencies that comprise one cycle of the distorted portion of the above waveform 250 4 200 4 150 4 100 4 50 4 0 Current amps 50 4 100 4 150 4 200 4 3250 FIGURE 2 13 Harmonics for Distorted Current Waveform The waveforms above provide an indication of the impact of combining multiple harmonic frequencies together The broken lines represent the 3rd 5th and 7th current harmonics The solid line represents the sum of the three harmonics When harmonics are present it is important to remember that they are operating at higher frequencies As such they do not always respond in the same manner as 60 Hz values 2 7 2 Inductive and Capacitive Impedance Inductive and capacitive impedance are present in all power systems We are accustomed to thinking about these impedances as they perform at 60 Hz However these impedances a
162. ted fastening system male RS485 reset button side port FIGURE 3 18 Input Output Module Ports EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION 3 2 7 Wiring the External Display Units For the three line LED display insert one end of the supplied RS485 cable into port 3 of the EPM 9450 9650 Port 3 is factory set to match the display baud rate of 9600 bps To usea port other than port 3 you must set its baud rate to 9600 using the GE Communicator EXT software Insert the other end of the cable into the back of the external LED display The connectors fit only one way into the ports The cable harness brings 17 V DC to the displays from the EPM 9450 9650 represented by dashed lines in the figure below RS485 communications is viable for up to 4000 feet 1219 meters If your cable length exceeds 200 feet you must use a remote power supply and e Connect the shield to the shield S terminal on the display port The S terminal on the EPM 9450 9650 is used to reference the port to the same potential as the source It is not an earth ground connection You must also connect the shield to earth ground at one point e Provide termination resistors at each end connected to the A and lines Ry is approximately 120 ohms External display port External LED display back view BOTTOM FIGURE 3 19 EPM 9450 9650 Connected to the External LED Display EPM 9000 ADVANCED POW
163. tential transformers PTs are required for higher voltages with the standard rating With the B system voltage option the direct voltage input is extended to 300 V phase to neutral and 600 V phase to phase The voltage reference V connection references the monitor to ground or neutral The voltage auxiliary Vaux connection is an auxiliary voltage input that can be used for any desired purpose such as monitoring neutral to ground voltage or monitoring two different lines on a switch Install the cables for the current at 600 V AC minimum insulation The cable connector should be rated at 10 A or greater and have a cross sectional area of 14 AWG Mount the current transformers CTs as close as possible to the meter The following table illustrates the maximum recommended distances for various CT sizes assuming the connection is via 14 AWG cable Table 3 1 CT Distance Recommendations CT Size Distance from CT to EPM 9450 9650 2 5 VA 10 ft maximum 5 0 VA 15 ft maximum 7 5 V 30 ft maximum 10 0 VA 40 ft maximum 15 0 VA 60 ft maximum 30 0 VA 120 ft maximum EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION Do not leave the secondary of the CT open when primary current is flowing This may A cause high voltage which will overheat the CT If the CT is not connected provide a shorting block on the secondary of the CT It is important to maintain
164. tervals or double click on the Trending Log Time Intervals line The following submenu appears EXT Trending Log Time Intervals Log 1 Interval Oh 15m 05 Log 2 Interval Oh 15m 0s This screen displays the current Device Profile s Trending Log Time Intervals The values shown are for example only Double click on either Log 1 Interval or Log 2 Interval The Interval Log Setting screen appears Device Profile Interval Log Setting Log 1 Interval _ ID Hours is Seconds Log 2 Interval ns an Seconds x Ee Ee Enter the hours minutes and seconds for each log The logs will be time stamped based on the meter s time which is set using the Tools menu See section7 2 5 gt When all changes are entered click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter Reset Logs 7 5 9 Programming the Trending Setup for Historical Logs 1 and 2 The Trending Setup controls the channel assignments for Historical Logs 1 and 2 To set the Time Intervals for these Logs see section 7 12 See Chapter 8 of the GE Communicator EXT User Guide for how to view logs From the Device Profile screen see section 7 2 click on the button beside Trending Setup or double click on the Trending Setup line The Trending submenu appears To change the settin
165. the LEFT RIGHT arrows to access the following readings in order Phase currents I lg and Ic Maximum phase currents lato ANd Icimax Minimum phase currents lamin Igimin ANG etin Total harmonic distortion THD for phase currents l4 Ig and Ic Total harmonic distortion for maximum phase currents lata Bmax Qd leta Total harmonic distortion for minimum phase currents lamin Igtmin Qd Itin Calculated and measured neutral current Iy Maximum calculated and maximum measured neutral current Iy Group 4 power metering Use the LEFT RIGHT arrows to access the following readings in order Real and reactive power in watts and vars respectively Maximum positive real and reactive power in watts and vars respectively Coincident positive reactive power in vars Maximum negative real and reactive power in watts and vars respectively Coincident negative reactive power in vars Real and reactive power demand block fixed window average in watts and vars respectively Coincident reactive power demand block fixed window average in vars Real and reactive power demand predictive sliding window maximum in watts and vars respectively Coincident reactive power demand predictive sliding window maximum in vars Group 5 apparent power power factor and frequency metering Use the LEFT RIGHT arrows to access the following readings in order Apparent power lagging power factor and frequency M
166. the current period will continue until the set end date At that point the current time will become the new start time and the settings of the new calendar will be used Reset the current accumulations if a calendar in use is replaced A reset clears only the current accumulation registers This causes the current accumulations to use the present date as the start and accumulate to the next new end date which will be taken from the new calendar Once stored prior accumulations are always available and cannot be reset Refer to the GE Communicator EXT User Manual for details on resetting TOU accumulations At the end of a defined period current accumulations are stored the registers are cleared and accumulations for the next period begin When the year boundary is crossed the second calendar if present is used To retain continuity a one year period is provided to replace the old calendar with one for the following year 4 3 5 Daylight Savings and Demand If required daylight saving time must be enabled in the Time Settings area of the EPM 9450 9650 device profile Select Auto DST which sets daylight saving time automatically for the United States ONLY Otherwise select User Defined and manually enter the desired dates for daylight saving time Refer to the GE Communicator EXT User Manual for additional details Device Profile Time Settings Zone Descriptor Daylight Savings Information Auto DST v Line Synchronization Enable
167. the load rises above a specified value EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 2 ELECTRICAL BACKGROUND 2 6 2 Power Factor Acommon method of measuring reactive power requirements is power factor Power factor can be defined in two different ways The more common method of calculating power factor is the ratio of the real power to the apparent power This relationship is expressed in the following formula Total PE fealpower _ _ watts EQ 2 23 apparent power VA This formula calculates a power factor quantity known as total power factor It is called total PF because it is based on the ratios of the power delivered The delivered power quantities will include the impacts of any existing harmonic content If the voltage or current includes high levels of harmonic distortion the power values will be affected By calculating power factor from the power values the power factor will include the impact of harmonic distortion In many cases this is the preferred method of calculation because the entire impact of the actual voltage and current are included Asecond type of power factor is displacement power factor Displacement PF is based on the angular relationship between the voltage and current Displacement power factor does not consider the magnitudes of voltage current or power It is solely based on the phase angle differences As a result it does not include the impact of harmonic distortion Displaceme
168. the polarity of the CT circuit when connecting to the EPM 9450 9650 If the polarity is reversed the EPM 9450 9650 will not provide accurate readings CT polarities are dependent upon correct connection of CT leads and the direction CTs are facing when clamped around the conductors GE Multilin recommends using shorting blocks to allow removal of the EPM 9450 9650 from an energized circuit if necessary Shorting blocks are not required for proper meter operation 3 9 Isolating a CT Connection Reversal To isolate a CT connection reversal for a wye system use the following procedure Check the current phase angle reading on the external display If it is negative reverse the CTs Goto the phasors screen of the GE Communicator EXT software Verify the phase relationship between the current and voltage they should be in phase Use the following procedure for a delta system Goto the phasors screen of the Communicator EXT software Verify that the current is 30 off the phase to phase voltage 3 2 4 Instrument Power Connections The EPM 9450 9650 requires a separate power source To use AC power connect the line supply wire to the L terminal and the neutral supply wire to the N terminal on the EPM 9450 9650 To use DC power connect the positive supply wire to the L terminal and the negative ground supply wire to the N terminal Do not ground the unit through the negative of the DC supply Separate grounding is re
169. ton beside Revenue and Energy Settings Double click on the Demand Integration Intervals line The following submenu appears Thermal Averaging Time Interval Window Oh 15m Os Block Averaging Time Interval Window Oh 15m 0s Rolling Averaging Sub Interval Window Oh 5m 0s Rolling Sub Intervals 3 Predictive Rolling Window Average 100 00 gt Double click on any of the settings Rolling Sub Intervals etc The Demand Integration Programming screens appear Device Profile Demand Integration r Thermal Averaging Time Interval Window s Minutes 0 Seconds Make changes to the screens according to the requirements of your application e Block Averaging Time Interval Window Sets the length of the Block Interval used for Demand Calculation and other Interval based functions 7 28 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT r Block Averaging Time Interval Window Hours hs Minutes 0 Seconds r Block Window Sync High Speed Input Sync Disabled Block Window Sync Synchronizes the meter with pulses from a High Speed Input connected to another meter Click the Use Sync Pulse box and select the Input number Block Window Demand Only Rolling Subinterval Window Sets the length of the Demand Subinterval when Rolling Demand is used Subinterval Length X Number of Subintervals 2 Length of Demand Interval Window r Rolling Averaging Sub I
170. tor to see and access the screen For optimum performance maintain the following environmental conditions at the installation area Operating temperature 0 to 50 C 32 to 122 F e Relative humidity 25 to 65 non condensing EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 3 INSTALLATION Aperture is 4 763 x 3 583 12 1 x 9 1 cm Pixel matrix is 320 x 240 11 5 x 8 6 cm 5 400 13 7 cm 8 x 4 40 screws amp I4 7 36 18 6 cm typ 0 32 typ 3 76 9 5 cm typ 0 8 cm 8 00 20 3 cm typ 1 392 1 55 35cm 09 156 3 9 cm 0 4 cm FIGURE 3 3 External LCD Display Mounting 2 12 typ 5 3 cm The cutout for bezel mounting the LCD display is shown below Carefully insert the display with bezel and gasket attached then fasten the unit securely with the four 6 32 hex nuts supplied 4 6 116 8mm 3 5 88 9mm 8 x 0 125 DIA 3 2 mm 0 180 4 57 mm 5 38 136 7mm 3 81 mm 7 0 177 8 mm FIGURE 3 4 Cutout for External LCD Display EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 3 3 CHAPTER 3 INSTALLATION 3 1 4 Input Output Module Mounting Connect multiple input output modules by inserting male RS485 side ports into female ports then using a flathead screwdriver screw each module into the next Work from left to right If multiple input output modules are connected together secure
171. ttings Page gt Touch the UP and DOWN buttons to increase the LCD screen contrast a value of 37 is optimal and the backlight off delay The backlight off delay value indicates the number of seconds after the last meter use that the backlight is turned off Press the NEXT button to display the second settings page FIGURE 4 29 Communication Link Settings The communication link settings allow the user to change the meter address protocol and baud rate EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 23 CHAPTER 4 OPERATING INSTRUCTIONS Press the NEXT button to display the third settings page FIGURE 4 50 Port Settings Page The port settings page displays the settings baud rate and protocol for each port of the EPM 9450 9650 meter gt Press the NEXT button to display the fourth settings page FIGURE 4 31 Status Page The status page displays the device type serial number communications state healthy or unhealthy DSP state healthy or unhealthy protection password enabled or disabled and the on time current date and time EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 4 OPERATING INSTRUCTIONS gt Press the NEXT button to display the final settings page FIGURE 4 32 Firmware Versions Page This screen displays the current firmware versions for the EPM 9450 9650 and the display unit EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUI
172. uge 12807 5C O 87 38mm suoacoc D fupe Valse YN DE Yeas X 1 73 31 37mm 43 94mm FIGURE 3 7 Input Output Modules With Psio Mounting Front View 2x 1 10 27 93mm t oli y The power supply module PSIO must be to the right of the input output modules when viewing the side label as shown NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 5 CHAPTER 3 INSTALLATION 3 2 Electrical Installation 3 2 1 Overview Corresponding wiring diagrams for the various EPM 9450 9650 connection types appear on the following pages If the required connection is not shown contact GE Multilin for a custom connection diagram Grounding Industrial meters are typically grounded at the service entrance not the meter per NEC 1999 section 250 24 5 and 250 26 Auxiliary power Meters may be externally powered using a 120 to 230 V AC or 125 to 400 V DC power supply 3 2 2 Voltage and Current Connections 3 6 The cable required to terminate the voltage sense circuit should have an insulation rating greater than 600V AC and a current rating greater than 0 1 A Use a minimum of 14 AWG wire for all phase voltage and current connections For accuracy of the readings and for protection GE Multilin requires using 0 25 A rated fuses on all voltage inputs as shown in the wiring diagrams The EPM 9450 9650 can handle a maximum voltage of 150 V phase to neutral and 300 V phase to phase Po
173. umulations in the Interval From the Device Profile screen see section 7 2 click on the button beside Energy Pulses and Accumulations in the Interval or double click on the Energy Pulses and Accumulations in the Interval line This window appears Energy Pulses and Accumulations in the Interval Energy Interval 5 Minutes KS gt Set the number of minutes for the Energy Interval gt Click OK to close the window and return to the main EPM 9000 Advanced Power Quality Metering System screen 7 4 9 Pulse Accumulations This section of the Device Profile displays a series of eight running totals Each total can be added to or subtracted from other totals This allows you to set the High Speed Inputs located directly on the meter to pulse accumulate y If you use these inputs for pulse accumulations do not set them to record waveforms If you do you will record endless waveforms NOTE EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE T 37 CHAPTER 7 GE COMMUNICATOR EXT From the Device Profile screen see section 7 2 click on the Revenue and Energy Settings button and double click on the Pulse Accumulations line The following screen will appear Device Profile Internal Input Pulse Accumulators Setup Source Units Count Aggregator User Assigned Label Mode Assigned WAV PO Assigned WAV PO Assigned WAV PO Assigned WAV PO Assigned WAV PO Assigned WAV PO Assigned WAV P
174. urer s test report A typical test report will include at least the following information e Manufacturer e Unit serial number e Transformer MVA rating self cooled e Test voltage No load loss watts e Load loss watts or full load loss watts EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 4 33 4 34 CHAPTER 4 OPERATING INSTRUCTIONS e Percent of exciting current at 10096 voltage e Percent impedance The transformer MVA rating is generally the lowest MVA rating the self cooled or OA rating of the transformer winding The test voltage is generally the nominal voltage of the secondary or low voltage winding For three phase transformers these values will typically be the three phase rating and the phase to phase voltage All of the test measurements are based on these two numbers Part of the process of calculating the loss compensation percentages is converting the transformer loss values based on the transformer ratings to the base used by the meter Correct calculation of loss compensation also requires knowledge of the meter installation To calculate the loss compensation settings the following information is required e Number of meter elements e Potential transformer ratio PTR e Current transformer ratio CTR e Meter base voltage e Meter base current This section is limited to application of EPM 9450 9650 meters to three element metering installations As a result we know that e Number of meteri
175. vice Profile enables you to set the Trending Profiles for historical logs From the Device Profile screen see section 7 2 click on the button beside Trending Profile Settings or double click on the Trending Profile Settings line The following submenu appears ES Trending Profile Settings Trending Log Time Intervals 5 Trending Setup Double click on one of the Trending topics to access the programming screens Load Profile Recording Definition Load Profile Recording is a subset of the meter s more general Logging and Trending capability The same screens are used for setup but Load Profile Recording deals only with Accumulated Values Energy Wh Reactive Energy VARh and Apparent Power VAh Historically Load Profile Recording referred to recording of Quadrant 1 Energy Wh because electromechanical meters only measured energy and were detented to prevent reverse rotation outside of Quadrant 1 7 5 8 Programming the Trending Log Time Intervals Trending Log Time Intervals determine the interval at which Historical Logs 1 and 2 will take a snapshot To set the parameters for the logs see section 7 12 See Chapter 8 of the GE Communicator EXT User Guide for how to view and retrieve logs 7 50 EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT gt From the Device Profile screen see section 7 2 click on the button beside Trending Log Time In
176. wer is restored to the time at which the user wants to resume demand accumulation EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE 7 35 CHAPTER 7 GE COMMUNICATOR EXT gt Double click on one of the parameters The following screen appears Cold Load Pickup Time after control power is restored to start demand Minimum time control power must be off before using seconds Cold Load Pickup az e Cold Load Pickup Delay can be 1 to 60 minutes or Disabled e Minimum time control power must be off before using Cold Load Pickup Value is set from 0 to 255 seconds D D 7 4 7 Cumulative Demand Type gt When all changes are entered click OK to return to the main Device Profile screen For these changes to take effect you MUST click on the Update Device button to send the new profile to the meter From the Device Profile screen see section 7 2 click on the button beside Cumulative Demand Type or double click on the Cumulative Demand Type line The following submenu appears Cumulative Demand Type E e Rolling Window Block Window x Noe Click the radio button in fron of Rolling sliding Window or Block fixed Window to select Cumulative Demand Type Click OK to exit the screen and return to the main EPM 9000 Advanced Power Quality Metering System screen EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 4 8 Energy Pulses and Acc
177. ws a single phase voltage and current and breaks the current into its in phase and quadrature components FIGURE 2 10 Voltage and Complex Current The voltage V and the total current I can be combined to calculate the apparent power or VA The voltage and the in phase current Ig are combined to produce the real power or watts The voltage and the quadrature current ly are combined to calculate the reactive power The quadrature current may be lagging the voltage as shown above or it may lead the voltage When the quadrature current lags the voltage the load is requiring both real power watts and reactive power vars When the quadrature current leads the voltage the load is requiring real power watts but is delivering reactive power vars back into the system that is vars are flowing in the opposite direction of the real power flow Reactive power vars is required in all power systems Any equipment that uses magnetization to operate requires vars Usually the magnitude of vars is relatively low compared to the real power quantities Utilities have an interest in maintaining var requirements at the customer to a low value to maximize the return on plant invested to deliver energy When lines are carrying vars they cannot carry as many watts So keeping the var content low allows a line to carry its full capacity of watts To encourage customers to keep var requirements low most utilities impose a penalty if the var content of
178. y Method 2 Q1 Lag Q2 Lead Q3 Lag Q4 Lead Double click on any of the Designation Names The following screen appears Device Profile Labels Meter Designation PM 9800 dus D iNMoasured O Power Direction Quadrant 1 4 Delivered and Quadrant 3 Received TE Method 2 Q1 Lag Q2 Lead Q3 Lag Q4 Lead X Memo Field 4 f Enter the labels in the appropriate fields Meter Designation MUST be set for Partial Log Retrieval gt When all changes are entered click OK to return to the main Device Profile screen gt For these changes to take effect you MUST click on the Update Device button This sends the new profile to the meter For Meter Designations you can use any character allowed by Windows Operating System for a File Name since that Meter Designation will be used as the File Name In English versions the following characters will not work V lt gt For meters used internationally by multilingual users it is recommended that you use ONLY alphanumeric characters allowed by your Operating System EPM 9000 ADVANCED POWER QUALITY METERING SYSTEM USER GUIDE CHAPTER 7 GE COMMUNICATOR EXT 7 3 6 Communications gt From the Device Profile screen see section 7 2 click on the button beside General Settings and double click on the Communications line This submenu appears Communications 1 57600 N 1 Modbus RTU 1 57600 N 1 Modbus RTU

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