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EPM 2200

1. N c See Note 1 5 CONFIG_MENU ENTER SCROLL_EDIT SCRL blinking SCRL DOWN or gt cT yes or no RIGHT PT choice blinking if edit Le toggle scroll DOWN setting ENTER CONFIG_MENU ENTER y oy _ ENTER y ENTER CT blinking m CTD_EDIT CTD_SHOW CT_MULT_EDIT DOWN or PT DOWN CT N RIGHT CT D ETS RIGHT increment HHH blink tors 1 or 10 or 100 blinking one blinking if edit next choice blinking if edit show Se digit next digit igr choice ENTER ENTER CONFIG_MENU PT blinking ENTER ENTER CNCT PORT C PTN_EDIT PTD_EDIT PT_MULT_EDIT DOWN PT N RIGHT DOWN PT D RIGHT PT S HHE en 1 or 10 or 100 increment one blinking if edit blink increment one blinking if edit blink choice blinking if edit DOWN blinking next blinking riext digit digit digit digit CONFIG_MENU CNC blinking PORT PASS ENTER CONNECT_EDIT CNCT choices MENU CNCT DOWN 3 EL WYE DOWN 1 of 3 choices or RIGHT 2 CT DEL choice blinking if edit show 2 5 EL WYE 7 next s CONFIG_MENU hece Protocol Choices PORT blinking RTU ASCI PASS SORL ENTER ADDRESS_EDIT BAUD_EDIT DOWN or PROTOCOL_EDIT DOWN ADR RIGHT BAUD RIGHT PROT Bown oF it ane 1 of 3 choices RIGHT CONFIG MENU a Hen one bli
2. Hex Decimal Description Format Range Rollei Comments i g Fixed Data Section 0000 0007 1 8 eter Name ASCII 16 char none 8 0008 000F 9 16 eter Serial Number ASCII 16 char none 8 0010 0010 17 17 eter Type UINT16 bit mapped t vvv t 0 1 vvv Software Option A1 B1 or C1 0011 0012 18 19 Firmware Version ASCII 4 char none 2 0013 0013 20 20 ap Version UINT16 O to 65535 none 1 0014 0014 21 21 eter Configuration UINTI6 bit mapped F I calibration 1 frequency 50 or 60 0015 0015 22 22 ASIC Version UINT16 0 65535 none 1 0016 0026 23 39 Reserve 17 0027 002E 40 47 OEM Part Number 8 Block Size 47 Meter Data Section 0383 0384 900 901 Watts 3 Ph total FLOAT 9999 M to 9999M watts 2 0385 0386 902 903 VARs 3 Ph total FLOAT 9999 M to 9999 M VARs 2 0387 0388 904 905 VAs 3 Ph total FLOAT 9999 M to 9999M VAs 2 Block Size 6 Primary Readings Block 60 cycles IEEE Floating Point read only O3E7 03E8 1000 1001 Volts A N FLOAT 0 to 9999 volts 2 O3E9 O3EA 1002 1003 Volts B N FLOAT 0 to 9999 volts 2 O3EB O03EC 1004 1005 Volts C N FLOAT 0 to 9999 volts 2 O3ED OSEE 1006 1007 Volts A B FLOAT 0 to 9999 volts 2 O3EF O3FO 1008 1009 Volts B C FLOAT 0 to 9999 volts 2 O3F1 03F2 1010 1011 Volts C A FLOAT 0 to 9999 volts 2 O3F3 O3F4 1012 1013 Amps A FLOAT 0 to 9999 amps 2 O3F5 03F6 1014 1015 Amps B FLOAT
3. e Push ENTER the following Password screen appears 7 3 2 1 Enter Password only if it has been enabled in software To enter a Password e If PASSWORD is Enabled in the software see section 5 2 2 to Enable Change Password a screen appears requesting the Password PASS appears in the A Screen and 4 dashes in the B Screen The LEFT digit is flashing e Use the DOWN button to scroll from 0 to 9 for the flashing digit When the correct number appears for that digit use the RIGHT button to move to the next digit Example On the Password screens below e Onthe left screen four dashes appear and the left digit is flashing e Onthe right screen 2 digits have been entered and the third digit is flashing MENU ENTER MENU ENTER y gt y gt PASS or FAIL e When all 4 digits have been entered push ENTER e ifthe correct Password has been entered rSt ALL donE appears and the screen returns to Auto Scroll the Parameters In other Modes the screen returns to the screen to be changed The left digit of the setting is flashing and the Program PRG LED flashes on the left side of the meter face EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 7 5 CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL MENU ENTER q rSk f don BS Y e Ifan incorrect Password has been entered PASS FAIL appears and the screen returns to Reset ALL YES MENU ENTER 7 3 3 Configuration Mode T
4. 5 Press MENU to return to the main Configuration menu 7 3 9 Configuring the Communication Port Setting Use the following procedure to program the communication port Port settings 1 Push the DOWN Button to scroll through the configuration mode parameters 2 Press ENTER when Port is the active parameter i e it is in the A screen and flashing as shown below MENU ENTER POE LSE e E p The following parameters can be configured through the Port menu e The meter Address Adr a 3 digit number The Baud Rate bAUd Select from 9600 19 2 38 4 and 57 6 for 9600 19200 38400 and 57600 kbps respectively The Communications Protocol Prot Select rtU for Modbus RTU and ASCI for Modbus ASCII e The first Port screen is Meter Address Adr The current address appears on the screen Follow the programming steps in section 7 3 5 Select a three digit number for the address 7 12 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL MENU ENTER LAr _ __GUS e Cc I y gt Address 005 Refer to Programming the Configuration Mode Screens above for details on changing values e The next Port screen is the baud rate baud The current baud rate is displayed on the B screen Refer to Programming the Configuration Mode Screens above for details on changing values The possible baud ra
5. Notes 1 Group is skipped if not applicable to the meter type or hookup or if explicitly disabled via programmable settings 2 DOWN occurs without user intervention every 7 seconds if scrolling is enabled 3 No Volts LN screens for Delta 2CT hookup 4 Scrolling is suspended for 3 minutes after any button press MENU from any operanng gt to Main Menu mode screen See sheet 1 APPENDIX A 4 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX A EPM2200 NAVIGATION MAPS Reset Mode Screens Sheet 3 from MAIN MENU RESET_NO RST ALL a RIGHT no blinking RESET_YES RST ALL yes blinking is password required yes increment blinking digit ENTER reset all max es amp min values RESET_CONFIRM RESET ALL DONE Y to previous operating mode screen see sheet 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE RESET_ENTER_PW RIGHT B gt PASS H H one blinking ENTER is password correct no Menu from any reset mode screen to Main Menu see sheet 1 make next digit blink RESET_PW_FAIL PASS HHHH FAIL APPENDIX A 5 APPENDIX A EPM2200 NAVIGATION MAPS Configuration Mode Screens Sheet 4
6. EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 3 3 3 3 4 CHAPTER 3 MECHANICAL INSTALLATION DIN Installation Steps 1 Slide meter with NEMA 12 Mounting Gasket into panel Remove ANSI Studs if in place 2 From back of panel slide 2 DIN Mounting Brackets into grooves in top and bottom of meter housing Snap into place 3 Secure meter to panel with lock washer and a 8 screw through each of the 2 mounting brackets Tighten with a 2 Phillips screwdriver Do not overtighten The maximum installation torque is 0 4 Newton Meter _ DIN mounting bracket _top mounting bracket groove bottom mounting bracket groove EPM 2200 meter with NEMA 12 mounting gasket Remove unscrew ANSI studs for DIN Installation EN FIGURE 3 3 DIN Mounting Procedure EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System Chapter 4 Electrical Installation 4 1 Considerations When Installing Meters e Installation of the EPM2200 Meter must be performed by only qualified personnel who follow standard safety precautions during all procedures Those personnel should have appropriate training and experience with high voltage devices Appropriate safety gloves safety glasses and protective clothing is recommended e During normal operation of the EPM2200 Meter dangerous voltages flow through many parts of the meter
7. Gills This unit additionally provides ultra rugged Termination Pass Through Bars that allow CT leads to be terminated on the meter This too eliminates any possible point of failure at the meter This is a preferred technique for insuring that relay class CT integrity is not compromised the CT will not open in a fault condition 2 1 2 Order Codes The order codes for the EPM 2200 are indicated below Table 2 1 EPM 2200 Order Codes Option Al Volts and Amps Meter B1 Volts Amps Power amp Frequency C1 Volts Amps Power Frequency amp Energy Counters Communications Xx None S RS485 Pulse For example to order an EPM 2200 to measure Volts Amps Power amp Frequency with RS485 Pulse communications use PL2200 B S 2 1 3 Measured Values The following table lists the measured values available in real time average maximum and minimum Table 2 2 EPM 2200 Measured Values Measured Values Real Time Average Maximum Minimum Voltage L N X X X Voltage L L X X X Current per phase X X X X Current Neutral X Watts X X X X VARS X X X X VA X X X X Power Factor PF X X X X Positive watt hours X EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 2 OVERVIEW AND SPECIFICATIONS Table 2 2 EPM 2200 Measured Values Measured Values Real Time Average Maximum Minimum Negative watt hours Net watt hours Positive VAR hours
8. 753E 753E 30015 30015 User Settings Flags UINT16 bit mapped g nn srp wf g enable alternate full scale bargraph current 1 on O off nn number of phases for voltage amp current screens 3 ABC 2 AB 1 A O ABC s scroll 1 on O off r password for reset in use 1 on O off p password for configuration in use 1 O off w pwr dir O view as load 1 view as generator f flip power factor sign 1 yes O no 0n Hl 7155F 753F 30016 30016 Full Scale Current for load bargraph UINT16 0 to 9999 none If non zero and user settings bit g is set this value replaces CT numerator in the full scale current calculation 1540 7 547 30017 30024 Meter Designation ASCII 16 char none 1548 7 548 30025 30025 Not Used EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 9 APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 6 of 7 ar Units or R Hex Decimal Description Format Range Resolution Comments g 7549 7549 30026 30026 COM2 setup UINT16 bit mapped dddd ppp dddd reply delay 50 T bbb msec ppp protocol 1 Modbus RTU
9. CHAPTER 1 THREE PHASE POWER MEASUREMENT The data from Figure 1 7 is reproduced in the table below to illustrate the calculation of energy Since the time increment of the measurement is one minute and since we specified that the load is constant over that minute we can convert the power reading to an equivalent consumed energy reading by multiplying the power reading times 1 60 converting the time base from minutes to hours Table 1 2 Power and Energy Relationship Over Time Time Interval Power Energy Accumulated Minutes kW kWh Energy kWh 1 30 0 50 0 50 2 50 0 83 1 33 3 40 0 67 2 00 4 55 0 92 2 92 5 60 1 00 3 92 6 60 1 00 4 92 7 70 1 17 6 09 8 70 1 17 7 26 9 60 1 00 8 26 10 70 1 17 9 43 11 80 1 33 10 76 12 50 0 83 12 42 13 50 0 83 12 42 14 70 1 17 13 59 15 80 1 33 14 92 As in Table 1 2 the accumulated energy for the power load profile of Figure 1 7 is 14 92 kWh 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 Figure 1 7 and adjust the energy reading to an hourly value that constitutes the demand In the example the accumulated energy is 14 92 kW
10. 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 connected by a common node In the circuit of Figure 1 6 we must measure the EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 7 CHAPTER 1 THREE PHASE POWER MEASUREMENT 1 2 Power Energy and Demand 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 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 because it takes some amount of time to calculate the RMS values of voltage and current But this time interval is kept small to preserve the instantaneous nature of power En
11. In this chapter a typical set up will be demonstrated Other settings are possible The complete Navigation Map for the Display Modes is in Appendix A of this manual The meter can also be configured with software see GE Communicator EXT 3 0 Manual EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL 7 2 Start Up Upon Power Up the meter will display a sequence of screens The sequence includes the following screens e Lamp Test Screen where all LEDs are lighted e Lamp Test Screen where all digits are lighted e Firmware Screen showing build number e Error Screen if an error exists EPM2200 will then automatically Auto Scroll the Parameter Designators on the right side of the front panel Values are displayed for each parameter The KILO or MEGA LED lights showing the scale for the Wh VARh and VAh readings An example of a Wh reading is shown here An example of a Wh reading is shown below FIGURE 7 2 Typical Wh Reading The EPM2200 will continue to scroll through the Parameter Designators providing readings until one of the buttons on the front panel is pushed causing the meter to enter one of the other MODES EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 7 3 CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL 7 3 Configuration 7 3 1 Main Menu Push MENU from any of the Auto Scrolling Readings The MAIN MENU Screens appear The
12. 0 to 9999 amps 2 O3F7 03F8 1016 1017 Amps C FLOAT Oto 9999M amps 2 O3F9 O3FA 1018 1019 Watts 3 Ph total FLOAT 9999 M to 9999M watts 2 O3FB O3FC 1020 1021 VARs 3 Ph total FLOAT 9999 M to 9999M VARs 2 O3FD O3FE 1022 1023 VAs 3 Ph total FLOAT 9999 M to 9999M VAs 2 O3FF 04001024 1025 ower Factor 3 Ph FLOAT 1 00 to 1 00 none 2 tota 0401 0402 1026 1027 Frequency FLOAT 0 to 65 00 Hz 2 0403 0404 1028 1029 Neutral Current FLOAT 0 to 9999M amps 2 Block Size 30 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 5 APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 2 of 7 ei Units or R Hex Decimal Description Format Range Resolution Comments g 044B 044C 1100 1101 W hours Received SINT32 O to 99999999 or Wh per energy Wh received amp delivered 2 0 to 99999999 forma always have opposite 044D 044E 1102 1103 W hours Delivered SINT32 O to 99999999 or Wh per energy Wh received is positive 2 0 to 99999999 orma for view as load O44F 0450 1104 1105 w hours Net SINT32 99999999 to Wh per energy _ Selivered is positive for jz 99999999 orma view as generator 0451 0452 1106 1107 W hours Total SINT32 O to 99999999 Wh pe
13. 2 element Delta 4 wire Delta INPUt IMpedaAnCe esssssesessssestttteeeenenenenseseee 1 MOhm phase Burden eessssesseseee 0 0144 VA phase at 120 Volts Pickup voltage 10 VAC COMMECTION iiine Screw terminal Maximum input wire gauge AWG 12 2 5 mm Fault Withstand ue Meets IEEE C37 90 1 RE CICIFVG isiin nsis Programmable full scale to any PT ratio CURRENT INPUTS Class TOS sisaassaastosesecudcccsebeccodestaicbeloctisstbansbece 5 Anominal 10 A maximum BUTAE N ennau 0 005 VA per phase maximum ot 11 A PICKUP CUNRC Ms iieninai 0 1 of nominal COMECtiON Siennine O or U lug Pass through wire 0 177 4 5 mm maximum diameter Quick connect 0 25 male tab Fault Withstand at 23 C 100 A 10 seconds 300 A 3 seconds 500 A 1 second oce le 01e A Programmable full scale to any CT ratio MEASUREMENT METHODS Voltage and current neeecccccsssscsscccccececceessee True RMS POWE Trainerinnen ia e E Sampling at 400 samples cycle on all channels measured readings simultaneously A D CORVEPSIONE site cssscsestsseenttarcasarsuantns 6 simultaneous 24 bit analog to digital converters UPDATE RATE All POramMEtEr S sic sscssczessissscsssssssgnaczraselvteasiee Up to 1 second ACCURACY For 23 C 3 Phase balanced Wye or Delta load Parameter Accuracy Accuracy Input Range Voltage L N V 0 2 of reading 69 to 480 V Voltage L L V 0 4 of reading IZO
14. Negative VAR hours Net VAR hours VA hours Frequency Voltage angles Current angles X X X X X X X X X XxX of load bar 2 1 4 Utility Peak Demand The EPM 2200 provides user configured Block fixed window or Rolling window demand This feature allows you to set up a customized demand profile Block window demand is demand used over a user configured demand period usually 5 15 or 30 minutes Rolling window demand is a fixed window demand that moves for a user specified subinterval period For example a 15 minute demand using 3 subintervals and providing a new demand reading every 5 minutes based on the last 15 minutes Utility demand features can be used to calculate kW KVAR KVA and PF readings All other parameters offer maximum and minimum capability over the user selectable averaging period Voltage provides an instantaneous maximum and minimum reading which displays the highest surge and lowest sag seen by the meter EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 253 CHAPTER 2 OVERVIEW AND SPECIFICATIONS 2 2 Specifications POWER SUPPLY RONGE nren EEE Universal 90 to 265 VAC 50 60Hz Power CONSUMPTION ceeesescccsssessseeeesesseeeeees 5 VA VOLTAGE INPUTS MEASUREMENT CATEGORY III RONO Eion e acute E ERN Universal Auto ranging up to 416 V AC L N 721 V AC L L Supported NOOKUPS sssssssssssssesseeeeseee 3 element Wye 2 5 element Wye
15. VAs 2 Avg Demand 0C37 0C38 3128 4129 Positive Power Factor FLOAT 1 00 to 1 00 none 2 3 Ph Maximum Avg Demand 0C39 OC3A 3130 3131 Negative Power Factor FLOAT 1 00 to 1 00 none 2 3 Ph Maximum Avg Demand OC3B O0C3C 3132 3133 Frequency Maximum FLOAT O to 65 00 Hz 2 Block Size 34 1003 1003 4100 4100 Phase A Current SINT16 1800 to 1800 0 1 degree 1 1004 1004 4101 4101 Phase B Current SINT16 1800 to 1800 0 1 degree 1 1005 1005 4102 4102 Phase C Current SINT16 1800 to 1800 0 1 degree 1 1006 1006 4103 4103 Angle Volts A B SINT16 1800 to 1800 0 1 degree 1 1007 10074104 4104 Angle Volts B C SINT16 1800 to 1800 0 1 degree 1 1008 1008 4105 4105 Angle Volts C A SINT16 1800 to 1800 0 1 degree 1 Block Size 6 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 7 APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 4 of 7 fas Units or R Hex Decimal Description Format Range Resolution Comments g 1387 1387 5000 5000 Meter Status UINT16 bit mapped exnpch exnpch EEPROM block 1 SSSSSSSS OK flags e energy x max n min p programmable settings c calibration h header ssssssss state 1 Run 2 Limp 10 Prog Set Update via buttons 12 Prog Set Upda
16. including Terminals and any connected CTs Current Transformers and PTs Potential Transformers all 1 O Modules Inputs and Outputs and their circuits All Primary and Secondary circuits can at times produce lethal voltages and currents Avoid contact with any current carrying surfaces e Donot use the meter or any I O Output Device for primary protection or in an energy limiting capacity The meter can only be used as secondary protection Do not use the meter for applications where failure of the meter may cause harm or death Do not use the meter for any application where there may be a risk of fire e All meter terminals should be inaccessible after installation e Do not apply more than the maximum voltage the meter or any attached device can withstand Refer to meter and or device labels and to the Specifications for all devices before applying voltages Do not HIPOT Dielectric test any Outputs Inputs or Communications terminals e GE recommends the use of Shorting Blocks and Fuses for voltage leads and power supply to prevent hazardous voltage conditions or damage to CTs if the meter needs to be removed from service CT grounding is optional If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired CAUTION EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 1 4 2 v NOTE CAUTION CHAPTER 4 ELECTRICAL INSTALLATION There is no
17. 1 Modbus Register Map Sheet 5 of 7 Hex Decimal Description Format Range Pall ae Comments R g Programmable Settings Section See note 15 752F 752F 130000 30000 CT multiplier amp UINT16 bit mapped dddddddd high byte is denominator 1 denominator mmmmmmmm 5 read only low byte is multiplier 1 10 or 100 7530 7530 30001 30001 CT numerator UINT16 1 to 9999 none 1 7531 7531 30002 30002 PT numerator UINT16 1 to 9999 none 1 7532 7532 30003 30003 PT denominator UINT16 1 to 9999 none 1 7533 7533 30004 30004 PT multiplier amp hookup UINT16 bit mapped mmmmmmmm MMMMmmmmmmmm is 1 MMMMhhhh PT multiplier 1 10 100 Averaging Metho It mappe 1000 hhhh is hookup enumeration 0 3 element wye 9S 1 delta 2 CTs 5S 3 2 5 element b 0 block or 1 rolling sss subintervals 1 2 3 4 1535 30006 30006 Power amp Energy Format UINT16 bit mapped pppp power scale 0 unit 3 kilo 6 mega 8 auto nn number of energy digits 5 8 gt 0 3 eee energy scale 0 unit 3 kilo 6 mega ddd energy digits after decimal point 0 6 See note 10 7536 7536 153 753D 30007 30007 30008 30014 Operating Mode Screen Enables Reserve UINT16 bit mapped 00000000 eeeeeeee eeeeeeee Op mode screen rows on 1 or off 0 rows top to bottom are bits low order to high order
18. AT A 2 4 MODU MON anran A ere YE PRT Te tetas ANSI INSTALLATION STEPS DIN INSTALLATION STEPS CONSIDERATIONS WHEN INSTALLING METERS cccssssescssvecesevsurs duaasovasescooor eiasncestasdeonbsbvseiuss 4 1 CT LEADS TERMINATED TO METER wiscssessesscssscssscssessecsessssssssssessessessscssssssssssstesessessessssssss 4 2 CT LEADS PASS THROUGH NO METER TERMINATION ccecscsssssecscccssssecsccssseseessssseseeseeees 4 3 QUICK CONNECT CRIMP CT TERMINATIONS ou ccccscssssssssssessssssssccssscssscsssessscssscssecessessecesee 4 3 VOLTAGE AND POWER SUPPLY CONNECTIONS ccsssesssssessssesssssscssessssseesssesssssesseeeesseesses 4 4 GROUND CONNECTIONS lt s sccdsvshadsfesscdysessssaataasusseudads annsanta enait asid NEE N SiS VOLTAGE FUSES umR AE A AEN ELECTRICAL CONNECTION DIAGRAMS DESGRIPTION miie ea e A A N E 1 WYE 4 WIRE WITH NO PTS AND 3 CTS NO PTS 3 ELEMENT w sccsscsssscssseeesseee 4 7 1A DUAL PHASE HOOKUP ssssssessssssssssssssssessssssssssssssssessesssssssssssssusiesssessssssssusissssessssssed TB SINGLE PHASE HOOKUP sss c sscccccsusdsssdessdsssaszovsacesdasensadancnsaadetessenseananseddod ansadbansddisdeds 2 WYE 4 WIRE WITH NO PTS AND 3 CTS 2 5 ELEMENT 3 WYE 4 WIRE WITH 3 PTS AND 3 CTS 3 ELEMENT ovcccsseesssssesccssseccssseesessssecesseees 4 Wye 4 WIRE WITH 2 PTS AND 3 CTS 2 5 ELEMENT uu ccceessssseeccsssessssssessssssecssssees 5 DELTA 3 WIRE WITH NO PTS 2 CTS 6 DELTA 3 WIRE WITH 2 PTS 2 CTS
19. E EE EA EE AEAEE EETA ATN 7 1 METER USING THE TART E T ss sesuipvecessisds aon taneeiioesssdeot nett eeneenseeae 7 3 FRONT PANEL CONFIGURA TON uecita E aa 7 4 MAN MENU e a TEA EA OA 7 4 RESET MOBDE AEE EE 7 4 CONFIGURATION MODE sisccssssiscssceviss ssssScsxssceaiss vote usttovcossnevanevaneoesinionaseassstienneeuaasteraiensess 7 6 CONFIGURING THE SCROLL FEATURE ssesssessssssssesssesssesssssssesssscssscessssssesssessecesscssscesseesecs 7 7 PROGRAMMING THE CONFIGURATION MODE SCREENS esssssssesssesssesssesssesssesesseesseesseens 7 7 CONFIGURING THE CT SETTING CONFIGURING THE PT SETTING CONFIGURING THE CONNECTION CNCT SETTING ceeessssssccsssessssseessssseecsssssessssseeessseessssees 7 11 CONFIGURING THE COMMUNICATION PORT SETTING sscsssesssesssesssesssesssssssesssesseessecesee 7 12 OPERATING MODE sissscsasidsssssi ido sss cadestsdsgvadeaashddubsssgvasessoasusded i aNd 7 14 APPENDIX A EPM2200 INTROCUCTION eeinennin a ere a NDIX A 1 NAVIGATION MAPS NAVIGATION MAPS SHEETS 1 TO 4 ead NDIX A 2 EPM2200 NAVIGATION MAP TITLES cssscsssssssssssssssscsseesssecssessscsssscsseesseesseesses APPENDIX A 2 APPENDIX B MODBUS PET TAP sacs sccccssssnsaanansscc sanasaassassececsdchasansaveessspessdasnnasnsserysauananstancecccseatdoasheancesanied APPENDIX B 1 MAPPING FOR MODBUS REGISTER MAP SECTIONS sci saraccssnnauzsscasiareccmsannmmenascaen APPENDIX B 2 EPM2200 DATA FORMATS sandadisiutcdaiaistannn ae NDIX B 3 FEOATNG POINT VA
20. String for Reset Mode rSt appears blinking in the A Screen If you push DOWN the MENU scrolls and the String for Configuration Mode CFG appears blinking in the A Screen If you push DOWN again the String for Operating Mode OPr appears blinking in the A Screen If you push DOWN again the MENUscrolls back to Reset Mode rSt If you push ENTER from the Main Menu the meter enters the Mode that is in the A Screen and is blinking See Appendix A for Navigation Map MENU ENTER MENU ENTER MENU ENTER dee CFG e CFG je 0P j Le5t e OPr je cSt e CFE y gt y y FIGURE 7 3 Main Menu Screens 7 3 2 Reset Mode If you push ENTER from the Main Menu the meter enters the Mode that is in the A Screen and is blinking Reset Mode is the first mode to appear on the Main Menu Push ENTER hile rSt is in the A Screen and the RESETALL no screen appears Reset ALL resets all Max and Min values See Appendix A for Navigation Map MENU ENTER ALLP no y e Ifyou push ENTER again the Main Menu continues to scroll e The DOWNbutton does not change the screen q 7 a m 7 4 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL e Ifyou push the RIGHT button the RESET All YES screen appears MENU ENTER i I B l c y e To Reset All you must enter a 4 digit Password if Enabled in the software see section 5 2 2
21. THE FRONT PANEL 7 3 6 Configuring the CT Setting Use the following procedure to program the CT setting 1 Push the DOWN Button to scroll through the configuration mode parameters Press ENTER when ct is the active parameter i e it is in the A screen and flashing MENU ENTER This will display the and the ct n CT numerator screen 2 Press ENTER again to change to display the ct a CT denominator screen MENU ENTER MENU ENTER Menah Ed 000 5f y gt The ct a value is preset to a 1 or 5 A at the factory and cannot be changed 3 Press ENTER again to select the to ct s CT scaling value TES i a y gt The ct s value can be 1 10 or 100 Refer to Programming the Configuration Mode Screens on page 7 7 for instructions on changing values EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 79 CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL Example settings for the ct s value are shown below 200 5 A set the ct n value for 200 and the ct s value for 1 800 5 A set the ct n value for 800 and the ct s value for 1 2000 5 A set the Ct n value for 2000 and the ct s value for 1 10000 5 A set the Ct n value for 1000 and the ct s value for 10 iy The value for amps is a product of the ct n and the ct s values NOTE 4 Press ENTER to scroll through the other cre parameters Pressing DOWN or RIGHT displays the p
22. The Communication Settings appear Use drop down menus to change settings if desired EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 7 5 8 CHAPTER 5 COMMUNICATION INSTALLATION Communication Settings e COM2 RS485 e Address 1 247 e Protocol Modbus RTU ASCII e Baud Rate 9600 to 57600 e Response Delay 0 750 msec COM1 is not used by the EPM2200 meter NOTE 6 When changes are complete click the Update button to send a new profile to the meter 7 Click Cancel to Exit the Profile or 8 Click other tabs to update other aspects of the Profile see section 5 2 2 below 5 2 2 Additional EPM2200 Profile Settings SCALING CT PT Ratios and System Wiring CT PT Ratios and System Wiring CT Numerator Primary os CT Denominator Secondary BO CT Multiplier o CT Fullscale 25 00 amps PT Numerator Primary A40 PT Denominator Secondary ia PT Multiplier n PT Fullscale 14 4k volts System Wiring Phases Displayed moea Eas ae e CT Numerator Primary e CT Denominator Secondary 5 factory set e CT Multiplier e CT Fullscale Calculation Based on Selections e PT Numerator Primary EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATION INSTALLATION e PT Denominator Secondary e PT Multiplier e PT Fullscale Calculation Based on Selections System Wiring Number of Phases One Two or Three iy VOLTS FULL SCALE PT Numerator x PT Mu
23. 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 Displacement power factor is calculated using the following equation Displacement PF cos EQ 1 2 Where 9 is the angle between the voltage and the current see Fig 1 9 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 13 CHAPTER 1 THREE PHASE POWER MEASUREMENT 1 4 Harmonic Distortion 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 Fi
24. change N A N A All 3 voltage angles are measured for Wye and Delta hookups For 2 5 Element Vac is measured and Vab amp Vbc are calculated If a voltage phase is missing the two voltage angles in which it participates are set to zero A and C phase current angles are measured for all hookups B phase current angle is measured for Wye and is zero for other hookups If a voltage phase is missing its current angle is zero If any register in the programmable settings section is set to a value other than the acceptable value then the meter will stay in LIMP mode Please read the comments section or the range for each register in programmable settings section for acceptable settings N A EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE
25. in Chapter 5 4 1 2 CT Leads Pass Through No Meter Termination The second method allows the CT wires to pass through the CT Inputs without terminating at the meter In this case remove the current gills and place the CT wire directly through the CT opening The opening will accommodate up to 0 177 4 5 mm maximum diameter CT wire CT wire passing through the meter Current gills removed FIGURE 4 2 Pass Through Wire Electrical Connection 4 1 3 Quick Connect Crimp CT Terminations For quick termination or for portable applications a quick connect crimp CT connection can also be used EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 4 4 1 4 CHAPTER 4 ELECTRICAL INSTALLATION CrimpCT terminations 5 FIGURE 4 3 Quick Connect Electrical Connection Voltage and Power Supply Connections Voltage Inputs are connected to the back of the unit via a optional wire connectors The connectors accommodate up to AWG 12 2 5 mm wire EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION Powersupply gt z inputs ee 7 CGANGER Rx Offa RS485 outputs REA 4 do not place voltage E on these terminals S Kyz e Voltage inputs p FIGURE 4 4 Voltage Connection 4 1 5 Ground Connections The EPM 2200 ground terminals D should be connected directly to the installation s protective ear
26. 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 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT 100 80 60 40 20 ear 2 3 4 5 6 7 8 Intervals 15 mins FIGURE 1 8 Energy Use and Demand Intervals kilowatt hours As seen in this example it is important to recognize the relationships between power energy and demand in order to effectively control loads or to correctly monitor use EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE i l 13 CHAPTER 1 THREE PHASE POWER MEASUREMENT 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
27. multiplier UINT16 1 10 100 none denominator 1 9C54 9C54 40021 40021 PT denominator UINT16 1 to 9999 none 1 9C55 9C56 40022 40023 W hours Positive UINT32 0 to 99999999 Wh per energy 5 to 8 digits 2 decimal point implied per energy format resolution of digit before format decimal point units kilo 9C5B 9C5C 40028 40029 VAR hours Negative UINT32 0 to 99999999 VARh per energy Or mega per energy 2 format format 9C5D 9C5E 40030 40031 VA hours UINT32 0 to 99999999 VAh per energy see note 10 2 format 9C5F 9C5F 40032 40032 Neutral Current UINT16 0 to 4095 amps see Amps A B C above 1 9C60 YICA2Z 40033 40099 Reserve A N A none 67 9CAS 9CAS 40100 40100 Reset Energy UINT16 password gt write only register always 1 Accumulators reads as 0 Block Size 100 ASCII characters packed 2 per register in high low order and without any termination ASCII characters For example EPM2200 would be 4 registers containing 0x5378 0x6172 0x6B31 0x3030 SINT16 UINT16 16 bit signed unsigned integer 32 bit signed unsigned integer spanning 2 registers The lower addressed register is the SINT32 UINT32 high order half FLOAT 32 bit IEEE floating point number spanning 2 registers The lower addressed register is the high order half i e contains the exponent 1 All registers not explicitly listed in the table read a
28. refer to Chapter 7 bagi For complete Navigation Maps refer to Appendix A of this manual EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 53 CHAPTER 6 USING THE METER 6 2 of Load Bar The 10 segment LED bargraph at the bottom of the EPM2200 unit s display provides a graphic representation of Amps The segments light according to the load in the Load Segment Table below When the Load is over 120 of Full Load all segments flash On 1 5 secs and Off 0 5 secs Table 6 1 Load Segments Segments Load lt Full Load None No Load 1 1 1 2 15 1 3 30 1 4 45 1 5 60 1 6 72 1 7 84 1 8 96 1 9 108 1 10 120 All Blink gt 120 6 4 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 6 USING THE METER 6 3 Watt hour Accuracy Testing Verification To be certified for revenue metering power providers and utility companies have to verify that the billing energy meter will perform to the stated accuracy To confirm the meter s performance and calibration power providers use field test standards to ensure that the unit s energy measurements are correct Since the EPM 2200 is a traceable revenue meter it contains a utility grade test pulse that can be used to gate an accuracy standard This is an essential feature required of all billing grade meters Watt Hour Test Pulse FIGURE 6 3 Watt hour Test Pulse Refer to the fi
29. requires a AN volts v reference Please ensure that the voltage input is attached to the meter AC control power os can be used to provide the reference signal EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 12 9 Current Only Measurement Dual Phase For this wiring type select 3 EL WYE 3 Element Wye in the meter programming setup EE KO KC re arava LO Mi jE Power Supply 20VAC Minimum FIGURE 4 13 Current Only Measurement Dual Phase i Even if the meter is used only for current measurement the unit requires a AN volts v reference Please ensure that the voltage input is attached to the meter AC control power can be used to provide the reference signal EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 17 CHAPTER 4 ELECTRICAL INSTALLATION 4 2 13 10 Current Only Measurement Single Phase For this wiring type select 3 EL WYE 3 Element Wye in the meter programming setup N A Power Supply FIGURE 4 14 Current Only Measurement Single Phase i Even if the meter is used only for current measurement the unit requires a AN volts A reference Please ensure that the voltage input is attached to the meter AC control power at can be used to provide the reference signal 4 18 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Meteri
30. 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 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 Figure 1 6 shows a typical connection of a three phase load applied to a three phase four wire service Krichhoff 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 3 C B Phase B Phase C Sat Node n Phase A A N FIGURE 1 6 Three Phase Load Illustrating Kirchhoff s Law and Blondell s Theorem
31. to 600 V Current Phase A 0 2 of reading 0 15 to 5 A Current Neutral calculated A 2 of Full Scale 0 15 to 5 A 45 to 65 Hz Active Power Total W 0 5 of reading 0 15 to 5 A 69 to 480 V 0 5 to 1 lag lead PF Active Energy Total Wh 0 5 of reading 0 15 to 5 A 69 to 480 V 0 5 to 1 lag lead PF Reactive Power Total VAR 1 0 of reading 0 15 to 5 A 69 to 480V 0 to 0 8 lag lead PF Reactive Energy Total VARh 1 0 of reading 0 15 to 5 A 69 to 480 V 0 to 0 8 lag lead PF Apparent Power Total VA 1 0 of reading 0 15 to 5JA 69 to 480V 0 5 to 1 lag lead PF Apparent Energy Total VAh 1 0 of reading 0 15 to 5JA 69 to 480V 0 5 to 1 lag lead PF Power Factor 1 0 of reading 0 15 to 5JA 69 to 480V 0 5 to 1 lag lead PF Frequency 0 01Hz 45 to 65 Hz Load Bar I segment 0 005 to 6IA 2 4 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 2 OVERVIEW AND SPECIFICATIONS 1 For 2 5 element programmed units degrade accuracy by an additional 0 5 of reading 2 For unbalanced voltage inputs where at least one crosses the 150V auto scale threshold for example 120V 120V 208V system degrade accuracy by additional 0 4 EPM 2200 accuracy meets the IEC62053 22 Accuracy Standards for 0 5 Class Meters This standard is shown in the table below Value of Current Power Factor Percentage Err
32. 0010 40010 VAs 3 Ph total INT16 2047 to 4095 VAs 3000 register 2047 9C4A 9C4A 40011 40011 Power Factor 3 Ph UINT16 1047 to 3047 none 1047 1 2047 0 3047 1 total 1 pf register 2047 1000 APPENDIX B 10 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 7 of 7 format 40024 40025 W hours Negative 0 to 99999999 Wh per energy format 9C5A 40026 40027 VAR hours Positive 0 to 99999999 VARh per energy Hex Decimal Description Format Range Peale Comments R g 9C4B 9C4B 40012 40012 Frequency UINT16 0 to 2730 Hz 0 45 or less 2047 60 1 2730 650rmore freq 45 register 4095 30 9C4C 9C4C 40013 40013 Volts A B UINT16 2047 to 4095 volts 2047 0 4095 300 1 9C4D 9C4D 40014 40014 Volts B C UINT16 2047 to 4095 volts volts 300 register 9C4E SC4ET4O0I5 GOOI5 Volts C A UINT16 2047 to 4095 volts 2047 2047 7 9C4F 9C4F 40016 40016 CT numerator UINT16 1 to 9999 none CT numerator 1 9C50 9C50 40017 4OO17ICT multiplier UINTI611 10 100 none multiplier denominator 9C51 9C51 40018 40018 CT denominator UINT16 1or5 none 1 9C52 9C52 40019 40019 PT numerator UINT16 1 to 9999 none PT numerator multiplier 1 9C53 9C53 40020 40020 PT
33. 1 Volts A N Minimum FLOAT 0 to 9999M volts 2 OBB9 OBBA 3002 3003 Volts B N Minimum FLOAT O to 9999 volts 2 OBBB OBBC 3004 3005 Volts C N Minimum FLOAT 0 to 9999 volts 2 OBBD OBBE 3006 3007 Volts A B Minimum FLOAT O to 9999 volts 2 OBBF OBCO 3008 3009 Volts B C Minimum FLOAT O to 9999M volts 2 OBCI OBC2 3010 3011 Volts C A Minimum FLOAT O to 9999M volts 2 OBC3 OBC4 3012 3013 Amps A Minimum Avg FLOAT O to 9999 amps 2 Demand OBC5 OBC6 3014 3015 Amps B Minimum Avg FLOAT O to 9999 amps 2 Demand OBC7 OBC8 3016 3017 Amps C Minimum Avg FLOAT O to 9999 amps 2 Demand OBC9 OBCA 3018 3019 Positive Watts 3 Ph FLOAT 0 to 9999M watts 2 Minimum Avg Demand OBCB OBCC 3020 3021 Positive VARs 3 Ph FLOAT O to 9999 M VARs 2 Minimum Avg Demand OBCD OBCE 3022 3023 Negative Watts 3 Ph FLOAT 0 to 9999 M watts 2 Minimum Avg Demand APPENDIX B 6 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 3 of 7 ae Units or R Hex Decimal Description Format Range Resolution Comments o g OBCF 0BDO 3024 3025 Negative VARs 3 Ph FLOAT 0 to 9999 M VARS 2 Minimum Avg De
34. 2 Modbus ASCII bbb baud rate 1 9600 2 19200 4 38400 6 57600 754A 754A 30027 30027 COM2 address UINT16 1 to 247 none 1 754B 754B 30028 30028 Not Use N A 1 754C 754C 30029 30029 Not Used N A 1 754D 754D 30030 30030 Not Used N A 1 754E 754E 130031 30031 Not Used N A 1 754F 754F 30032 30032 Not Used N A 1 7550 7554 30033 30037 Not Used TA 5 7555 7559 30038 30042 Not Used TA 5 755A 755E 130043 30047 Not Used TA 5 755F 7563130048 30052 Not Used TA 5 7564 7568130053 30057 Not Used TA 5 7569 756D 30058 30062 Not Used TA 5 756E 7572 30063 3006 Not Used TA 5 Block Size 68 Secondary Readings Section 9C40 9C40 40001 40001 System Sanity UINT16 O or 1 none 0 indicates proper meter Indicator operation 9C41 9C41 40002 40002 Volts A N UINT16 2047 to 4095 volts 2047 0 4095 150 1 9C42 9C42 40003 40003 Volts B N UINT16 2047 to 4095 volts volts 150 register 1 IC4S 9C43 140004 40004 Volts C N UINT16 2047 to 4095 volts 2047 2047 1 9C44 9C44 40005 40005 Amps A UINT16 0 to 4095 amps O 10 2047 0 4095 1 10 9C45 9C45 40006 40006 Amps B UINT16 0 to 4095 amps amps 10 register 1 9C46 9C46 40007 40007 Amps C UINT16 0 to 4095 amps 2047 2047 7 9C47 9C47 40008 40008 Watts 3 Ph tota UINT16 0 to 4095 watts O 3000 2047 0 4095 1 3000 9C48 9C48 40009 40009 VARs 3 Ph total UINT16 0 to 4095 VARs watts VARs VAs 1 9C49 9C49 4
35. 5 v NOTE CHAPTER 5 COMMUNICATION INSTALLATION e Connect 9 Serial Port Device Address Baud Rate Port GOR Modbus RTU TOANE None F A a tele FIGURE 5 7 Serial Port settings 3 Click the Connect button on the screen If you do not connect with the Factory Initial Default Settings within 5 seconds after powering on the meter the Device Profile reverts to the programmed Device Profile In that case disconnect and reconnect power before clicking the Connect button The Device Status screen appears confirming a connection Device Status Network IP Address 3 94 246 209 502__ S List of Currently Connected Devices 2 DSP Boot DSP Run time Comm State DSP State On Time Serial FIGURE 5 8 Device Status screen Click OK The main screen of GE Communicator EXT software reappears EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATION INSTALLATION File Connection Real Time Poll Tools View Help mee nanoa yes Owesds profile ieee open log SERS connect code polling energy THD phasors fider status status al amms Connected COM1 57600 Addr1 Device Modbus RTU 4 Click the Profile icon on the left of the toolbar A set of EPM2200 Profile Programming Screens appears Energy And Display Communication Settings COM2 R5485 Address Protocol Modbus RTU Baud Rate Response Delay msec 5 Click the Communication tab
36. 7 DELTA 3 WIRE WITH 2 PTS 3 CTS coeccccsssssssssssssssessssssssssssssssessessssssssssssetssssssssssssse TOC 1 8 CURRENT ONLY MEASUREMENT THREE PHASE cssescsssesscsssesscsseessssesesessseccesseess 4 16 9 CURRENT ONLY MEASUREMENT DUAL PHASE uu ssesssssssssessssssssseesssssseteesssssseeeen 4 17 10 CURRENT ONLY MEASUREMENT SINGLE PHASE o u ssesssssssetesssssssseesssssssseessssees 4 18 5 COMMUNICATION EPM 2200 COMMUNICATION si ccisieccssuis cccedbinctlssccebeivaalasstucassebbpbasashens INSTALLATION RS 485 KYZ OuTPUT COM 2 485P OPTION EPM2200 COMMUNICATION AND PROGRAMMING OVERVIEW eesscsscseescseessseesseeees 5 5 FACTORY INITIAL DEFAULT SETTINGS cssssesssssessssessssessssssessesesseessssesssssesssseeseesssesssneesseses 5 5 ADDITIONAL EPM2200 PROFILE SETTINGS oe cscsssesssssssesssssessessscsssesssesssesssesssenssesssenseess 5 8 6 USING THE METER INTRODUCTION ssscncccccsesoxsnsstacescopsasauazeis ococas hsaizassnccastanedasansqand ordaseanussaanicces desthdaarajocses taaoauneccetedhd 6 1 METER FACE ELEMENTS icssssssssssssssssessssessessesosssesssesesesesesesesssesesessnssenssenssenssanssenssanstenseasees 6 1 METER FAGE BUTTONS reitinn e TARER 6 2 eT AVENE E i E A E N A A P T TE O AA AA A E E 6 4 WATT HOUR ACCURACY TESTING VERIFICATION ssssscssssiiirssscsissssasasisnsicsisssrasiainsssssssesaa 6 5 INFRARED amp KYZ PULSE CONSTANTS FOR ACCURACY TESTING n ccsssesssssssescseseseseseens 6 6 7 CONFIGURING THE ME 1 ET
37. B9 159 x 2137 127 x 1 11000010001110111001 1 x 210 x 1 75871956 1800 929 Register Ox0C4E1 0x01DB9 Byte Ox0C4 Ox0E1 0x01D Ox0B9 Bit 7 47 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 1 0 0 1 01 0 1 1 1 0 0 0 0 1 0 0 0 1 1 1 0 11 1 0 1 1 11 0 0 Meaning s e je jesye ye ye ye mMm mM mM mM mM mMimMsmMPMMeM_ M_M M M MIM Ms mM mM mMms msm sign exponent mantissa 1 0x089 137 0b11000010001110110111001 Formula Explanation C4E11DB9 hex 11000100 11100001 00011101 10111001 binary The sign of the Mantissa and therefore the number is 1 which represents a negative value The Exponent is 10001001 binary or 137 decimal The Exponent is a value in excess of 127 so the Exponent value is 10 The Mantissa is 11000010001110110111001 binary With the implied leading 1 the Mantissa is 1 C23B72 hex The Floating Point Representation is therefore 1 75871956 x 21 Decimal equivalent 1800 929 iy Exponent the whole number before the decimal point at Mantissa the positive fraction after the decimal point APPENDIX B 4 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Appendix B 5 Modbus Register Map APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B 1 Modbus Register Map Sheet 1 of 7
38. Configuration Mode is not available during a Programmable Settings MAIN MENU Screen J update via a COM Port MAIN MENU screen scrolls through 3 choices showing all 3 at once The top choice is always the active ene which is indicated by the blinking legend MENU ENTER DOWN RIGHT Navigation Navigation and Edit buttons BUTTONS Returns to previous menu from any screen in any mode Indicates acceptance of the current screen and advances to the next one No digits or legends are blinking On a menu DOWN advances to the next menu selection RIGHT does nothing In a grid of screens DOWN advances to the next row RIGHT advances to the next column Rows columns and menus all navigate circularly Editing A digit or legend is blinking to indicate that it is eligible for change When a digit is blinking DOWN increases the digit value RIGHT moves to the next digit When a legend is blinking either button advances to the next choice legend all screens for a display mode single screen action taken group of buton gt screens EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX A 3 APPENDIX A EPM2200 NAVIGATION MAPS RIGHT Seu Notes 1 amp 3 nore mano ae Ser Note 1 RIGHT RIGHT VOLTS LL MAX RIGHT soe mmn RIGI IT RIGHT ir head RIGHT vee mer OEE Hor nown2 gt DOWN trom any W_VAR_PI screen RIGHT See Note
39. Digital Energy Multilin MULTI FUNCTION POWER METER Instruction Manual Software Revision 1 01 Manual P N 1601 9111 A2 Manual Order Code GEK 113575A Copyright 2011 GE Multilin GE Multilin 215 Anderson Avenue Markham Ontario Canada L6E 183 Tel 905 294 6222 Fax 905 201 2098 GE M ltilin s Quality Management System is registered to IS09001 2000 Internet http www GEmultilin com c US QMI 005094 MAU A NN NT LISTED 1 THREE PHASE POWER MEASUREMENT 2 OVERVIEW AND SPECIFICATIONS 3 MECHANICAL INSTALLATION 4 ELECTRICAL INSTALLATION EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Table of Contents REAL REACTIVE AND APPARENT POWER csssesssesssesssesssesssesssesssesssesssesssesssesssecsneeenscesecs 1 12 POWER FACTOR neinnar en a eA TOARN 1 13 HARMONIC OGTORNON ia seats oes ii A AER 1 14 INDUCTIVE AND CAPACITIVE IMPEDANCE sesssesssssssesssesssessseessssesssesssesseesssesseesseesseensnenseees 1 15 VOLTAGE AND CURRENT MONITORING WAVEFORM CAPTURE criccaseviclestuh anvicninitececnatiecletiiantrasiaaaatadabasabancesen ee Ce wianercrie tat aurea aula awa eka anata Greaeae en HARDWARE OVERVIEW oc ges ctiais t Re cea tls cee ad lcs 2 1 VOLTAGE AND CURRENT INPUTS c ssessssssssssssesssesssesssecssecssscsuscsuscsuscsuscsuecsseesseseseeesesesseesecs 2 1 ORDER CODES teak e aa ena 2 2 MEASURED VALUES orren EEO AEA 2 2 UTILITY PEAK DEMAN Deiis anii 2 3 PECICA
40. LUES 223 35 sscieesansiss aor tedteaaiaat ieee tedenatanitaaneuinie APPENDIX B 4 MODBUS REGETER MAP csececesvatatantesecess emtanacecesececoesoinnateatces esplony sederecermbanhectdectmeed APPENDIX B 5 TOG 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System Chapter 1 Three Phase Power Measurement This introduction to three phase power and power measurement is intended to provide only a brief overview of the subject The professional meter engineer or meter technician should refer to more advanced documents such as the EEI Handbook for Electricity Metering and the application standards for more in depth and technical coverage of the subject 1 1 Three Phase System Configurations 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 che
41. SYSTEM USER GUIDE CHAPTER 3 MECHANICAL INSTALLATION 1 4 65 118 1mm 4 10 104 1mm 5 02 127 5 mm 0 84 Loo 325 a 21 3mm 82 6mm EPM2200 Face EPM2200 Dimensions ANSI Mounting 3 54 Rods screw in 7 3 38 Sq 7 3 62 5 85 9mm 92 0mm 4X 0 2 5 1mm i 4 0 s 102 mm pes 8 E 8 aig 8 m N 1 69 DIN 43 mm EPM2200 Back Face Mounting ANSI Mounting Panel Cutout DIN Mounting Cutout Brackets FIGURE 3 1 EPM2200 Mounting Information Recommended Tools for EPM2200 Meter Installation e 2 Phillips screwdriver small wrench and wire cutters e Mount the meter in a dry location free from dirt and corrosive substances The meter is designed to withstand harsh environmental conditions See Environmental Specifications in Chapter 2 a2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 3 MECHANICAL INSTALLATION 3 2 ANSI Installation Steps Insert 4 threaded rods by hand into the back of meter Twist until secure Slide ANSI 12 Mounting Gasket onto back of meter with rods in place Slide meter into panel FW N bP Secure from back of panel with lock washer and nut on each threaded rod Use a small wrench to tighten Do not overtighten The maximum installation torque is 0 4 Newton Meter NEMA12 mounting gasket Ge threaded rods i N Co lock washer and nut FIGURE 3 2 ANSI Mounting Procedure
42. YSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System J Appendix B Modbus Mapping for EPM2200 Appendix B 1 Introduction The Modbus Map for the EPM2200 Meter gives details and information about the possible readings of the meter and about the programming of the meter The EPM2200 can be programmed using the buttons on the face plate of the meter Chapter 7 The meter can also be programmed using software For a Programming Overview see section 5 2 of this manual For further details see the GE Communicator EXT 3 0 Manual EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 1 APPENDIX B MODBUS MAPPING FOR EPM2200 Appendix B 2 Modbus Register Map Sections The EPM2200 Modbus Register Map includes the following sections Fixed Data Section Registers 1 47 details the Meter s Fixed Information described in Section 7 2 Meter Data Section Registers 1000 5003 details the Meter s Readings including Primary Readings Energy Block Demand Block Maximum and Minimum Blocks THD Block Phase Angle Block and Status Block Operating Mode readings are described in Section 7 3 4 Commands Section Registers 20000 26011 details the Meter s Resets Block Programming Block Other Commands Block and Encryption Block Programmable Settings Section Registers 30000 30067 details the Meter s Basic Setups Secondary Readings Section Registers 40001 40100 details t
43. and in order to control loads effectively or to monitor use correctly 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 and adjust the energy reading to an hourly value that constitutes the demand n 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 7 This peak of usage will result in setting a high demand reading For each
44. assword screen see Reset Mode on page 7 4 for details 5 Press MENU to return to the main configuration menu j Ct n and ct s are dictated by Primary Voltage L Ct d is secondary Voltage NOTE 7 3 7 Configuring the PT Setting Use the following procedure to program the PT setting 1 Push the DOWN Button to scroll through the configuration mode parameters 2 Press ENTER when Pt is the active parameter i e it is in the A screen and flashing as shown below MENU ENTER PE a L Enct e Yr This will display the Pt n PT numerator screen 3 Press ENTER again to change to display the Pt d PT denominator screen Pen PE 0 i0 e O iced e y gt y gt 4 Press ENTER again to select the to pt s PT scaling value I 10 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL MENU ENTER y The Pt s value can be 1 10 or 100 Refer to Programming the Configuration Mode Screens on page 7 7 for instructions on changing values Example settings for the Pt n Pt d and Pt s values are shown below 277 277 Volts Pt n value is 277 Pt d value is 277 Pt Multiplier is 1 14400 120 Volts Pt n value is 1440 Pt d value is 120 pt s value is 10 138000 69 Volts Pt n value is 1380 Pt d value is 69 Pt s value is 100 345000 115 Volts Pt n value is 3450 Pt d value is 115 pt s value is 100 345000 69 Volts Pt n valu
45. cking voltages Checking the transformer connection will provide conclusive evidence of the circuit connection and the relationships between the phase voltages and ground 1 1 1 Wye Connection The wye connection is so called because when you look at the phase relationships and the winding relationships between the phases it looks like a wye Y Fig 1 1 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 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 1 CHAPTER 1 THREE PHASE POWER MEASUREMENT la A Van Vbn B a Ei N FIGURE 1 1 Three phase Wye winding The three voltages are separated by 120 electrically 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 Van Vbn FIGURE 1 2 Three phase Voltage and Current Phasors for Wye Winding The phasor diagram shows the 120 angular separation between the phase voltages The phase
46. complished 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 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 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 5 1 6 CHAPTER 1 THREE PHASE POWER MEASUREMENT 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 Some digital meters calculate the individual phase power values one phase at a time This means
47. e is 345 Pt d value is 69 pt s value is 1000 5 Press ENTER to scroll through the other cre parameters 6 Press DOWN or RIGHT to display the password screen see Reset Mode on page 7 4 for details 7 Press MENU to return to the Main Configuration Menu i Pt n and Pt S are dictated by primary voltage SA Pt d is secondary voltage NOTE 7 3 8 Configuring the Connection Cnct Setting Use the following procedure to program the connection Cnet setting 1 Push the DOWN Button to scroll through the Configuration Mode parameters Scroll CT PT Connection Cnct and Port The active parameter is in the A screen and is flashing 2 Press ENTER when Cnet is the active parameter i e it is in the A screen and flashing This will display the Cnet Connection screen To change this setting use the RIGHT button to scroll through the three settings Select the setting that is right for your meter The possible Connection configurations are e 3 element Wye 3 EL WYE e 2 5 element Wye 2 5EL WYE e 2CTDelta 2 ct deL as shown below EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE fil CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL MENU ENTER MENU ENTER MENU ENTER i file e25e ls Lede gt gt 3 Element Wye 2 5 Element Wye 2 CT Delta 3 Press ENTER to scroll through the other cFe parameters 4 Press DOWN or RIGHT to display the Password screen see Reset Mode above for details
48. epetitive condition Intermittent loads Motor start Arc furnace ng s Harmonic distortion Steady state current or voltage long term duration Non linear System resonance oads 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 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System Chapter 2 Overview and Specifications 2 1 Hardware Overview The EPM2200 monitor is a 0 5 class electrical panel meter Using bright and large 56 LED displays it is designed to be used in electrical panels and swtichgear The meter has a unique anti dither algorithm to improve reading stability The EPM2200 meter uses high speed DSP techn
49. ergy is always based on 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 used Typically electrical energy is measured in units of kilowatt hours kWh A kilowatt hour represents a constant load of one thousand watts one kilowatt for one hour Stated another way if the power delivered instantaneous watts is measured as 1 000 watts and the load was served for a one hour time interval then the load would have absorbed one kilowatt hour of energy A different load may have a constant power requirement of 4 000 watts If the load were served for one hour it would absorb four kWh If the load 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 will represent the power load for the one minute increment of time In real life the power value moves almost constantly 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 1 7 Power Use Over Time kilowatts 1 8 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE
50. f the operating mode Table 7 1 Operating Mode Parameter Readings Parameter designator PLT Possible Readings table VOLTS L N Ai B1 C1 VOLTS_LN VOLTS_LN_MAX VOLTS_LN_MIN VOLTS L L A1 B1 C1 VOLTS_LL VOLTS_LL_ MAX VOLTS_LL_ MIN AMPS A1 B1 C1 AMPS AMPS_NEUTRAL AMPS_MAX AMPS_MIN W VAR PF B1 C1 W_VAR_PF W_VAR_PF W_VAR_PF W_VAR_PF W_VAR_PF _MAX_POS _MIN_POS _MAX_NEG _MIN_NEG VA Hz B1 Cl VA_FREQ VA_FREQ_ MAX VA_FREQ_ MIN Wh C1 KWH_REC KWH_DEL KWH_NET KWH_TOT VARh C1 KVARH_POS KVARH_ NEG KVARH_ NET KVARH_TOT VAh ci KVAH v NOTE EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Readings or groups of readings are skipped if not applicable to the meter type or hookup or if explicitly disabled in the programmable settings Digital Energy Multilin EPM 2200 Multi function Power Metering System j Appendix A EPM2200 Navigation Maps Appendix A 1 Introduction The EPM2200 meter can be configured and a variety of functions performed using the buttons on the meter face e An Overview of the Elements and Buttons on the meter face can be found in Chapter 6 e An Overview of Programming using the buttons can be found in Chapter 7 e The meter can also be programmed using software see GE Communicator EXT 3 0 Manual EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX A 1 APPENDIX A EPM2200 NAVIGATION MAPS Appendix A 2 Navigati
51. gure 1 10 shows a normal sinusoidal current waveform This example has no distortion 1000 _ 500 wn Q E Kzl 0 V 5 O 500 4 1000 4 FIGURE 1 10 Non distorted current waveform Figure 1 11 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 However the waveform is not a smooth sinusoidal form as seen in Figure 1 10 oopa 1000 500 Current amps jo 500 1000 Eoo a FIGURE 1 11 Distorted current wave The distortion observed in Figure 1 11 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 disassembling the distorted waveform into a EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT collection of higher frequency waveforms These higher frequency waveforms are referred to as harmonics Figure 1 12 shows the content of the harmonic frequencies that make up the distortion portion of the waveform in Figure 1 11 250 4 200 5 150 4 100 4 50 4 0 Current amps 50 5 100 4 150 4 200 4 250 FIGURE 1 12 Waveforms of the harmonics The waveforms shown in Figure 1 12 are not smoothed but do provide an indication of the impact of combining multiple harmonic frequencies together When harmonic
52. gure below for an example of how this test works Refer to Table 6 2 below for the Wh Pulse Constant for Accuracy Testing Test Pulses Energy Pulses rocco Energy Standard FIGURE 6 4 Using the Watt Hour Test Pulse EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 6 5 6 6 6 3 1 Infrared amp KYZ Pulse Constants for Accuracy Testing CHAPTER 6 USING THE METER Table 6 2 Infrared amp KYZ Pulse Constants for Accuracy Testing Voltage Level Class 10 Models Class 2 Models Below 150 V 0 2505759630 0 0501151926 Above 150 V 1 0023038521 iy e Minimum pulse width is 40 ms e Refer to section 2 2 for Wh Pulse specifications NOTE 0 2004607704 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System Chapter 7 Configuring the Meter Using the Front Panel 7 1 Overview The EPM2200 front panel can be used to configure the meter The EPM2200 has three MODES e Operating Mode Default e Reset Mode e Configuration Mode The MENU ENTER DOWN and RIGHT buttons navigate through the modes and navigate through all the screens in each mode Parameter Designator Reading Type Indicator me of Load Bar Scale Selector FIGURE 7 1 EPM2200 Label EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE oad 2 CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL
53. h 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 hr or 59 68 kwd Note that the peak instantaneous value of power is 80 kW significantly more than the demand value EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 9 12 1 Demand CHAPTER 1 THREE PHASE POWER MEASUREMENT Figure 1 8 shows 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 number 7 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 As can be seen from this example it is important to recognize the relationships between power energy and dem
54. he Meter s Secondary Readings Setups APPENDIX B 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B MODBUS MAPPING FOR EPM2200 Appendix B 3 Data Formats ASCII ASCII characters packed 2 per register in high low order and without any termination charcters Example EPM2200 would be 4 registers containing 0x5378 0x6172 0x6B31 0x3030 SINT16 UINT16 16 bit signed unsigned integer SINT32 UINT32 32 bit signed unsigned integer spanning 2 registers The lower addressed register is the high order half FLOAT 32 bit IEEE floating point number spanning 2 registers The lower addressed register is the high order half i e contains the exponent EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 3 APPENDIX B MODBUS MAPPING FOR EPM2200 Appendix B 4 Floating Point Values Floating Point Values are represented in the following format Register 0 Byte 0 0 1 Bit 7 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Meaning s e jejsjeysyeye ye ye m mM mM mM T m m m A E a TTA i Ms MM Ms Ms mMs msm msm sign exponent mantissa The formula to interpret a Floating Point Value is 15197 x 2exPonent 127 y 1 mantissa Ox0C4E11D
55. he following procedure describes how to navigate the configuration mode menu 1 Press the MENU Button from any of the auto scrolling readings 2 Press DOWN to display the Configuration Mode cFe string in the A screen MENU ENTER rer CFG A ni OP B SE e y gt 3 Press ENTER to scroll through the configuration parameters starting at the SCrL Ct Pt screen 7 6 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL MENU ENTER y 4 Push the DOWN Button to scroll all the parameters scroll CT PT connection Cnet and port The active parameter is always flashing and displayed in the A screen 7 3 4 Configuring the Scroll Feature Use the following procedure to configure the scroll feature 1 Press the ENTER button to display the scrL no message 2 Press the RIGHT button to change the display to S rL YES as shown below MENU ENTER MENU ENTER tno LYES e Cc I y gt y gt FIGURE 7 4 Scroll Mode Configuration When in scroll mode the unit scrolls each parameter for 7 seconds on and 1 second off The meter can be configured through software to only display selected screens In this case it will only scroll the selected displays 3 Push ENTER to select YES or no The screen scrolls to the CT parameters 7 3 5 Programming the Configuration Mode Screens Use the following procedure to program
56. lect 3 EL WYE 3 element Wye in the meter programming setup NANAI Power Supply PIW EL FIGURE 4 5 4 Wire Wye with no PTs and 3 CTs 3 Element EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 7 CHAPTER 4 ELECTRICAL INSTALLATION 4 2 3 1a Dual Phase Hookup Power Supply 4 8 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 4 1b Single Phase Hookup Power Supply EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 9 CHAPTER 4 ELECTRICAL INSTALLATION 4 2 5 2 Wye 4 Wire with no PTs and 3 CTs 2 5 Element For this wiring type select 2 5EL WYE 2 5 element Wye in the meter programming setup Power Supply FIGURE 4 6 4 Wire Wye with no PTs and 3 CTs 2 5 Element EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 6 3 Wye 4 Wire with 3 PTs and 3 CTs 3 Element For this wiring type select 3 EL WYE 3 element Wye in the meter programming setup N A B C Power dy Supply FIGURE 4 7 4 Wire Wye with 3 PTs and 3 CTs 3 Element EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 11 CHAPTER 4 ELECTRICAL INSTALLATION 4 2 7 4 Wye 4 Wire with 2 PTs and 3 CTs 2 5 Element For this wiring type select 2 5EL WYE 2 5 element Wye in the meter programming setup Power Supply FIGURE 4 8 4 Wire Wye with 2 PTs and 3 CTs 2 5 Elemen
57. level of termination internally Termination Resistors may not be needed When they are used the value of the Termination Resistors is determined by the electrical parameters of the cable Figure 5 4 shows a representation of an RS485 Daisy Chain connection EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE bag 5 4 CHAPTER 5 COMMUNICATION INSTALLATION Twisted pair shielded SH cable Twisted pair shielded SH cable FIGURE 5 4 RS485 Daisy Chain Connection Long stub results T connection that can cause interference problem i ast Slave device N Slave device 2 Master device E a ee Twisted pair shielded SH cable Twisted pair shielded SH cable Earth Connection preferably at single location Twisted pair shielded SH cable Twisted pair shielded SH cable Slave device 3 Twisted pair shielded SH cable Twisted pair shielded SH cable FIGURE 5 5 Incorrect T and Star Topologies EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATION INSTALLATION 5 2 EPM2200 Communication and Programming Overview The EPM2200 meter can be programmed either through the buttons on the faceplate or through software Software programming and communication utilize the RS485 connection on the back of the meter as shown in fig 5 3 Once a connection is established GE Communicator EXT 3 0 software can be used both to program the meter and to comm
58. ltiplier NOTE You must specify Primary and Secondary Voltage in Full Scale Do not use ratios The PT Denominator should be the Secondary Voltage level WARNING Example A 14400 120 PT would be entered as PT Num 1440 PT Denom 120 Multiplier 10 This example would display a 14 40kV Example CT Settings 200 5 Amps Set the Ct n value for 200 Ct Multiplier value for 1 800 5 Amps Set the Ct n value for 800 Ct Multiplier value for 1 2 000 5 Amps Set the Ct n value for 2000 Ct Multiplier value for 1 10 000 5 Amps Set the Ct n value for 1000 Ct Multiplier value for 10 Example PT Settings 277 277 Volts Pt n value is 277 Pt d value is 277 Pt Multiplier is 1 14 400 120 Volts Pt n value is 1440 Pt d value is 120 Pt Multiplier value is 10 138 000 69 Volts Pt n value is 1380 Pt d value is 69 Pt Multipier value is 100 345 000 115 Volts Pt n value is 3470 Pt d value is 115 Pt Multiplier value is 100 345 000 69 Volts Pt n value is 345 Pt d value is 69 Pt Multiplier value is 1000 Settings are the same for Wye and Delta configurations NOTE EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 5 9 iy NOTE NOTE CHAPTER 5 COMMUNICATION INSTALLATION ENERGY AND DISPLAY POWER AND ENERGY FORMAT Power and Energy Format Power Scale Energy Digits Energy Decimal Places Energy Scale Example 12345678 Power Direction view as load Demand Averaging Averging Method block tt Interval Minu
59. mand OBD1 0BD2 3026 3027 VAs 3 Ph Minimum FLOAT 9999 M to 9999M VAs 2 Avg Demand OBD3 OBD4 3028 3029 Positive Power Factor FLOAT 1 00 to 1 00 none 2 3 Ph Minimum Avg Demand OBD5 OBD6 3030 3031 Negative Power Factor FLOAT 1 00 to 1 00 none 2 3 Ph Minimum Avg Demand OBD OBD8 3032 3033 Frequency Minimum FLOAT O to 65 00 Hz 2 Block Size 34 OC1B OC1C 3100 3101 Volts A N Maximum FLOAT O to 9999 volts 2 OCID OC1E 3102 3103 Volts B N Maximum FLOAT 0 to 9999 volts 2 OCIF 0C20 3104 3105 Volts C N Maximum FLOAT 10 to 9999 volts 2 OC21 0C22 3106 3107 Volts A B Maximum FLOAT 0 to 9999 volts 2 0C23 0C24 3108 3109 Volts B C Maximum FLOAT 10 to 9999 volts 2 0C25 0C26 3110 3111 Volts C A Maximum FLOAT 0 to 9999 volts 2 0C27 0C28 3112 3113 Amps A Maximum Avg FLOAT 0 to 9999 amps 2 Demand 0C29 0C2A 3114 3115 Amps B Maximum Avg FLOAT 0 to 9999 amps 2 Demand 0C2B OC2C 3116 3117 Amps C Maximum Avg FLOAT 0 to 9999 amps 2 Demand OC2D OC2E 3118 3119 Positive Watts 3 Ph FLOAT 0 to 9999 watts 2 aximum Avg Demand OC2F 0C30 3120 3121 Positive VARs 3 Ph FLOAT 0 to 9999 VARS 2 aximum Avg Demand 0C31 0C32 3122 3123 Negative Watts 3 Ph FLOAT 0 to 9999 watts 2 aximum Avg Demand 0C33 0C34 3124 3125 Negative VARs 3 Ph FLOAT 0 to 9999 VARS 2 aximum Avg Demand 0C35 0C36 3126 3127 VAs 3 Ph Maximum FLOAT 9999Mto 9999M
60. n From other RS 485 device Connect to Connect to Connect Shield SH to Shield SH SH SH Twisted Pair Shielded Cable FIGURE 5 3 2 wire RS485 Connection For All RS485 Connections B y e Use a shielded twisted pair cable 22 AWG 0 33 mm2 or larger grounding the shield at one end only e Establish point to point configurations for each device on a RS485 bus connect terminals to terminals connect terminals to terminals e You may connect up to 31 meters on a single bus using RS485 Before assembling the bus each meter must be assigned a unique address refer to Chapter 5 of the GE Communicator EXT User s Manual for instructions e Protect cables from sources of electrical noise e Avoid both Star and Tee connections see Figure 5 7 e Nomore than two cables should be connected at any one point on an RS485 network whether the connections are for devices converters or terminal strips e Include all segments when calculating the total cable length of a network If you are not using an RS485 repeater the maximum length for cable connecting all devices is 4000 feet 1219 20 meters e Connect shield to RS485 Master and individual devices as shown in Figure 5 6 You may also connect the shield to earth ground at one point e Termination Resistors RT may be needed on both ends of longer length transmission lines However since the meter has some
61. ndicates Reading Displayed e Scale Selector Kilo or Mega multiplier of Displayed Readings MENU ENTER button button DOWN ie button FIGURE 6 2 EPM 2200 Faceplate Buttons Meter Face Buttons Using Menu Enter Down and Right Buttons perform the following functions e View Meter Information e Enter Display Modes e Configure Parameters Password Protected e Perform Resets e Perform LED Checks e Change Settings e View Parameter Values e Scroll Parameter Values Enter Button Press and release to enter one of four Display Modes e Operating Mode Default e Reset Mode ENTER once then Down e Settings Mode ENTER twice then Down e Configuration Mode ENTER three times then Down Menu Button Press and release to navigate Config Menu return to Main Menu Right Button Operating Mode Max Min Del kW Net kW Total kw Reset Mode Yes No EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 6 USING THE METER Settings Mode On Off Settings Config Mode Password Digits Available Values Digits Down Button Scroll DOWN through Mode menus Use Buttons in Modes of Operation e Operating Mode default View Parameter Values e Reset Mode Reset Stored Max and Min Values e Settings Mode View Meter Setting Parameters and Change Scroll Setting e Configuration Mode Change Meter Configuration Can be Password Protected The above is a brief overview of the use of the Buttons y For Programming
62. ng System J Chapter 5 Communication Installation 5 1 EPM2200 Communication Through the 485P option the EPM 2200 meter provides RS485 communication speaking Modbus ASCII and Modbus RTU protocols 5 1 1 RS 485 KYZ Output COM 2 485P Option The 485P Option provides a combination RS485 and a KYZ Pulse Output for pulsing energy values The RS485 KYZ Combo is located on the terminal section of the meter The EPM2200 meter s RS485 port can be programmed with the buttons on the face of the meter or by using GE Communicator ExT 3 0 software The standard RS485 Port Settings are as follows e Address 001 to 247 e Baud Rate 9600 19200 38400 or 57600 e Protocol Modbus RTU Modbus ASCII EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 5 1 CHAPTER 5 COMMUNICATION INSTALLATION FIGURE 5 1 485P Option with RS 485 Communication Installation RS485 allows you to connect one or multiple EPM2200 meters to a PC or other device at either a local or remote site All RS485 connections are viable for up to 4000 feet 1219 20 meters RS485 RS232 CONVERTER FIGURE 5 2 EPM2200 Connected to PC via RS485 As shown in Figure 5 2 to connect a EPM2200 to a PC you need to use an RS485 to RS232 converter Figure 5 3 below shows the detail of a 2 wire RS485 connection S 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATION INSTALLATION EPM2200 Meter RS485 Connectio
63. nking pi A choice blinking if edit PA choice blinking if edit Le ce PASS blinking digit digit choice choice SCRL CT ENTER ENTER 3 Notes ye PASSWORD_EDIT 1 1 Initial access is view only View access shows the existing settings At the i rSh E i DOWN PASS RIGHT first attempt to change a setting DOWN or RIGHT pressed password is showing 3 at a time The increment R HHR al blink requested if enabled and access changes to edit Edit access blinks the top choice is always the blinking one blinking next digit or list choice eligible for change and lights the PRG LED active one indicated by digit doty 2 Skip over password edit screen and menu selection if access is view only l the blinking legend 3 Scroll setting may be changed with view or edit access C i i 4 ENTER accepts an edit MENU abandons it A A first DOWN or RIGHT in view See Note 1 access if password required MENU MENU per row of the originating screen we H CFG_ENTER_PW savenew DOWN PASS any SAVE_YES ore configuration HHE one blinking changes yes STOR increment ALL blinking yes blinking digit SAVE_CONFIRM no STOR ALL RIGHT is password MENU ae DONE correct to the originating G EDIT screen 2 y ne NS A v ORNS reboot 4 to Main Menu lt amp MENU Au see sheet 1 no blinking ENTER to previous operating mode screen APPENDIX A 6 see sheet 2 EPM 2200 MULTI FUNCTION POWER METERING S
64. ology with high resolution A D conversion to provide stable and reliable measurements The EPM2200 meter is a meter and transducer in one compact unit Featuring an optional RS485 port it can be programmed using the faceplate of the meter or through software ANSI or DIN mounting may be used EPM2200 meter features that are detailed in this manual are as follows e 0 5 Class Accuracy e Multifunction Measurement including Voltage Current Power Frequency Energy etc e Percentage of Load Bar for Analog Meter Perception e Easy to Use Faceplate Programming e RS485 Modbus Communication 2 1 1 Voltage and Current Inputs Universal Voltage Inputs Voltage Inputs allow measurement to 416 Volts Line to Neutral and 721 Volts Line to Line This insures proper meter safety when wiring directly to high voltage systems One unit will perform to specification on 69 Volt 120 Volt 230 Volt 277 Volt 277 Volt and 347 Volt power systems Current Inputs The EPM2200 meter s Current Inputs use a unique dual input method Method 1 CT Pass Through EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 2 1 CHAPTER 2 OVERVIEW AND SPECIFICATIONS The CT passes directly through the meter without any physical termination on the meter This insures that the meter cannot be a point of failure on the CT circuit This is preferable for utility users when sharing relay class CTs No Burden is added to the secondary CT circuit Method 2 Current
65. on Maps Sheets 1 to 4 The EPM2200 Navigation Maps begin on the next page They show in detail how to move from one screen to another and from one Display Mode to another using the buttons on the face of the meter All Display Modes will automatically return to Operating Mode after 10 minutes with no user activity Appendix A 2 1 EPM2200 Navigation Map Titles Main Menu Screens Sheet 1 Operating Mode Screens Sheet 2 Reset Mode Screens Sheet 3 Configuration Mode Screens Sheet 4 APPENDIX A 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX A EPM2200 NAVIGATION MAPS Main Menu Screens Sheet 1 STARTUP sequence run once at meter startup 2 lamp test screens hardware information screen firmware version screen error screen conditional sequence completed Y 10 minutes with no user activity OPERATING MODE 10 minutes bi grid of meter data j 410 minutes with no user activity MENU screens See Sheet 2 N ENTER MENU MENU CONFIGURATION MODE MAIN MENU grid of meter settings enter CFG blinking screens with password OPR RST protected edit capability See Sheet 4 RESET MODE sequence of screens to get password if required and reset meter data See Sheet 3 MAIN MENU MAIN MENU OPR blinking RSTiblinking ENTER gt RST CFG CFG OPR DOWN MENU
66. or Limits for Meters of Class 0 5 S 0 01 In lt 1 lt 0 05 In 1 1 0 0 05 In lt lt Imax 1 0 5 0 5 inductive 1 0 0 02 mS1 lt 0 1in 0 8 capacitive 1 0 0 5 inductive 0 6 0 1 n lt imax 0 8 capacitive 0 6 When specially requested by 0 25 inductive 10 the user from j Se 5 O41 ine lt imax 0 8 capacitive 1 0 In the table above B v7 In Nominal 5A NOTE Imax Full Scale ISOLATION All Inputs and Outputs are galvanically isolated to 2500 V AC ENVIRONMENTAL SOIG Einni EEE 20 to 70 C OPEratiNg Eeihana 10 to 60 C Humidity Up to 95 RH non condensing Faceplate rating s s11119119111111101111111011 NEMA 12 water resistant mounting gasket included COMMUNICATIONS FORMAT TV RCSirteee eh iat he ease RS485P RS485 port through back plate plus KYZ Pulse KYZ RS485 PORT SPECIFICATIONS RS485 Transceiver meets or exceeds EIA TIA 485 Standard TYDE adien kena Two wire half duplex Min Input Impedance o eeeecssssssssessssesssssees 96kQ Max Output Current eeeeeceeeescssesstessessneeees 60mA Wh PULSE KYZ output contacts and infrared LED light pulses through face plate Pulse WICKS o ssescssssessssseseseesssscccccceccecseeeceeeeee 4Oms Full Scale Frequency o ccccccccssssssssssssssssssssees 6Hz Contact TW 0G es hansheratiasneatenccsaics Solid State SPDT NO C NC RELAY YDE tescsasale sass sateashiueeshchciochetcisDedacdnecannabcn Solid s
67. ounded 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT Vca 120 V 120 V Vab FIGURE 1 5 Three Phase Four Wire Delta Phasors 1 1 3 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 e fenergy 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 wattmeters 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 e Inasystem 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 e 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 ac
68. r energy 5 to 8 digits 2 orma 0453 0454 1108 1109 VAR hours Positive SINT32 O to 99999999 VARh per energy decimal point implied 2 orma per energy format 0455 0456 1110 1111 VAR hours Negative SINT32 O to 99999999 VARh per energy resolution of digit before 2 orma decimal point units kilo 0457 0458 1112 1113 VAR hours Net SINT32 99999999 to VARR per energy Or mega per energy 2 99999999 forma format 0459 045A 1114 1115 VAR hours Total SINT32 O to 99999999 VARh per energy 2 orma 045B 045C 1116 1117 VA hours Total SINT32 O to 99999999 VAN per energy see note 10 2 orma Block Size 18 O7CF 0 D0 2000 2001 Amps A Average FLOAT 0 to 9999 M amps 2 07D1 07 D2 2002 2003 Amps B Average FLOAT O to 9999 M amps 2 07D3 07 D4 2004 2005 Amps C Average FLOAT O to 9999 M amps 2 07D5 07D6 2006 2007 Positive Watts 3 Ph FLOAT 9999 M to 9999 watts 2 Average 07D7 07D8 2008 2009 Positive VARs 3 Ph FLOAT 9999 M to 9999 VARs 2 Average 07D9 O7DA 2010 2011 Negative Watts 3 Ph FLOAT 9999 M to 9999 watts 2 Average 07DB 07DC 2012 2013 Negative VARs 3 Ph FLOAT 9999 M to 9999 VARS 2 Average 07DD 07DE 2014 2015 VAs 3 Ph Average FLOAT 9999 M to 9999 VAS 2 O7DF 07E0 2016 2017 Positive PF 3 Ph FLOAT 1 00 to 1 00 none 2 Average O7E1 07E2 2018 2019 Negative PF 3 PF FLOAT 1 00 to 1 00 none 2 Average Block Size 20 OBB7 OBB8 3000 300
69. r 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 mis operation or failure of customer equipment or systems The causes of power quality problems vary widely and may originate in the customer equipment 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 Table 1 3 below Table 1 3 Typical Power Quality Problems and Sources Cause Disturbance Type Source s Impulse transient Transient voltage disturbance sub cycle duration Lightning Electrostatic discharge Load switching Capacitor switching Oscillatory transient with decay Transient voltage sub cycle duration Line cable switching Capacitor switching Load switching Sag swell e RMS voltage multiple cycle duration Remote system faults Interruptions RMS voltage multiple second or longer duration System protection Circuit brea Fuses Maintenance kers RMS voltage steady state Motor starting Undervoltage Overvoltage multiple second or longer Load variations duration Load dropping Voltage flicker RMS voltage steady state r
70. 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 inphase component and the component that is at quadrature angularly rotated 900 or perpendicular to the voltage Figure 1 9 shows a single phase voltage and current and breaks the current into its in phase and quadrature components FIGURE 1 9 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 IR are combined to produce the real power or watts The voltage and the quadrature current IX are combined to calculate the reactive power The quadrature current may be lagging the voltage as shown in Figure 1 9 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 req
71. required preventive maintenance or inspection necessary for safety however any repair or maintenance should be performed by the factory DISCONNECT DEVICE The following part is considered the equipment disconnect device A switch or circuit breaker shall be included in the end use equipment or building installation the switch shall be in close proximity to the equipment and within easy reach of the operator the switch shall be marked as the disconnecting device for the equipment 4 1 1 CT Leads Terminated to Meter The EPM 2200 is designed to have Current Inputs wired in one of three ways Figure 4 1 below shows the most typical connection where CT Leads are terminated to the meter at the Current Gills This connection uses Nickel Plated Brass Studs Current Gills with screws at each end This connection allows the CT wires to be terminated using either an O or a U lug Tighten the screws with a 2 Phillips screwdriver The maximum installation torque is 1 Newton Meter Other current connections are shown in Figures 3 6 and 3 7 A Voltage and RS 485 Connection is shown in Figure 3 8 Current gills nickel plated ___ brass stud FIGURE 4 1 CT leads terminated to meter 8 screw for lug connection EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION Wiring diagrams are detailed in the diagrams shown below in this chapter Communications connections are detailed
72. s 0 Writes to these registers will be accepted but won t actually change the register since it doesn t exist Meter Data Section items read as 0 until first readings are available or if the meter is not in 2 operating mode Writes to these registers will be accepted but won t actually change the register 3 Register valid only in programmable settings update mode In other modes these registers read as 0 and return an illegal data address exception if a write is attempted Meter command registers always read as 0 They may be written only when the meter is in 4 a suitable mode The registers return an illegal data address exception if a write is attempted in an incorrect mode 5 If the password is incorrect a valid response is returned but the command is not executed Use 5555 for the password if passwords are disabled in the programmable settings EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B 11 APPENDIX B 12 10 11 13 14 15 16 APPENDIX B MODBUS MAPPING FOR EPM2200 M denotes a 1 000 000 multiplier Not applicable to EPM2200 Writing this register causes data to be saved permanently in EEPROM If there is an error while saving a slave device failure exception is returned and programmable settings mode automatically terminates via reset Reset commands make no sense if the meter state is LIMP An illegal function exception will be returned Energy registers should be reset after a format
73. s are present it is important to remember that these quantities are operating at higher frequencies Therefore they do not always respond in the same manner as 60 Hz values 1 4 1 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 are subject to frequency variation xX Jol and X 1 j c EQ 1 3 At 60 Hz 377 but at 300 Hz 5th harmonic 1 885 As frequency changes impedance changes and system impedance characteristics that are normal at 60 Hz may behave entirely different in presence of higher order harmonic waveforms 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 1 4 2 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 15 CHAPTER 1 THREE PHASE POWER MEASUREMENT accuracy at frequencies above about 1200 Hz they pass almos
74. s the best place to determine the circuit connection type because this is a location where the voltage reference to ground can be conclusively identified 1 1 2 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 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 1 3 1 4 CHAPTER 1 THREE PHASE POWER MEASUREMENT Vca Ica FIGURE 1 3 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 Vab FIGURE 1 4 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 gr
75. seeessceeceesnsneessss 4 25 x 4 82 x 4 85 Lx W x H 105 4 mm x 123 2 mm x 123 2 mm Lx W x H IMQUIDTUI Ge siscsscdsvssetss gaassndacessscscctetecosssacessecteasd mounts in 92 mm square DIN or ANSI C39 1 4 inch round cut out Weight oecsscccsssssscsssssssesssssssensaseseeesssseesnseneesee 2 pounds 0 907 kg COMPLIANCE Test Reference Standard IEC62053 22 0 5 Accuracy ANSI C12 20 0 5 Accuracy Surge Withstand ANSI IEEE C37 90 Burst ANSI C62 41 Electrostatic Discharge 1EC1000 4 2 RF Immunity EC1000 4 3 Fast Transient IEC1000 4 4 Surge Immunity IEC1000 4 5 APPROVALS Applicable Council Directive According to UL61010 1 North America UL Recognized C22 2 No 61010 1 PICO7 ISO Manufactured under a registered ISO9001 quality program EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 2 7 CHAPTER 2 OVERVIEW AND SPECIFICATIONS EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System j Chapter 3 Mechanical Installation 3 1 Introduction The EPM2200 meter can be installed using a standard ANSI C39 1 4 Round or an IEC 92mm DIN Square form In new installations simply use existing DIN or ANSI punches For existing panels pull out old analog meters and replace with the EPM2200 meter The various models use the same installation See Chapter 4 for wiring diagrams EPM 2200 MULTI FUNCTION POWER METERING
76. t 4 12 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 8 5 Delta 3 Wire with no PTs 2 CTs For this wiring type select 2 Ct dEL 2 CT Delta in the meter programming setup Power Supply 4 Ke WEVE Ze LO LO LO 7 gt d f B Ih gt wD gt FIGURE 4 9 3 Wire Delta with no PTs and 2 CTs EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 13 4 2 9 CHAPTER 4 ELECTRICAL INSTALLATION 6 Delta 3 Wire with 2 PTs 2 CTs For this wiring type select 2 Ct dEL 2 CT Delta in the meter programming setup al eh Kel Eade B lji gt w gt FIGURE 4 10 3 Wire Delta with 2 PTs and 2 CTs EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 10 7 Delta 3 Wire with 2 PTs 3 CTs For this wiring type select 2 Ct dEL 2 CT Delta in the meter programming setup Power Supply B ifs gt re gt FIGURE 4 11 3 Wire Delta with 2 PTs and 3 CTs EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 15 CHAPTER 4 ELECTRICAL INSTALLATION 4 2 11 8 Current Only Measurement Three Phase For this wiring type select 3 EL WYE 3 Element Wye in the meter programming setup ANANA cI Dre FIGURE 4 12 Current Only Measurement Three Phase r Even if the meter is used only for current measurement the unit
77. t 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 volt bus the user may often see higher order harmonic distortion An important rule in any harmonics study is to evaluate the type of equipment and connections before drawing a conclusion Not being able to see harmonic distortion is not the same as not having harmonic distortion 1 4 3 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 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT 1 5 Power Quality Powe
78. tate Peak switching voltage cesses DC 350V Continuous load current oesseseseeeeeeeeseeeee 120mA Peak load current seseseeeesssssssseseeeseseseeeeeeee 350mA for 10ms ON resistance MOX ssssssssssssseeeeeeeeseeeteesees 350 Leakage current ceeesesssssstsessesssssscceceeeeseseceeees 1uA 350V 0 6 0 navsassss1s151101101115s1s1s1rs1ststrstrststrstntsnrs are AC 3750V Res t STATE sieccavssssccsestrthosesennnsionseearties NC C Closed NO C Open EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 2 5 2 6 CHAPTER 2 OVERVIEW AND SPECIFICATIONS Infrared LED Peak Spectral Wavelength 0 940nm Reset State d sceasscassstarsctnsccstsscecstvsesnsenanaien Off FIGURE 2 1 Internal Schematic De energized State Watthour 3600 Kh er P Watt Not a scaled value pulse T s Ve Kh See Section 6 3 for values M IR LED Light Pulses Through face plate OFF ON OFF ON KYZ output Contact States Through Backplate NC NC A NC NC 4 NC C C C C C NO J NO NO T NO NO J FIGURE 2 2 Output Timing EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 2 OVERVIEW AND SPECIFICATIONS COMMUNICATIONS PORTS PROTOGOIS yi geilet hisini Modbus RTU Modbus ASCII Boud ratene 9600 to 57600 bps Port CCreSS nsii 001 to 247 Data TODE ninrin 8 bits no parity MECHANICAL PARAMETERS DIMENSIONS ceessssssssesesecsscsssssss
79. te screens are shown below MENU ENTER MENU ENTER _bAUd L BAU ie 1 LO ne vp BAU BAU e The final Port screen is the Communications Protocol Prot The current protocol is displayed on the B screen MENU ENTER MENU ENTER i Pr ot Prot i B F Q a R Q a Cc a cE je ASL a Y Y EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE T13 CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL Refer to Programming the Configuration Mode Screens above for details on changing values The three protocol selections are shown below 3 4 7 3 10 Operating Mode Press ENTER to scroll through the other cFG parameters Press DOWN or RIGHT to display the Password screen see Reset Mode on page 7 4 for details Press MENU to return to the main Configuration menu Operating mode is the EPM 2200 meter s default mode If scrolling is enabled the meter automatically scrolls through these parameter screens after startup The screen changes every 7 seconds Scrolling is suspended for 3 minutes after any button is pressed Push the DOWN button to scroll all the parameters in operating mode The active parameter has the indicator light next to it on the right face of the meter Push the RIGHT button to view additional displays for that parameter A table of the possible displays in the operating mode is below Refer to Appendix A for a detailed navigation map o
80. te via communication port 1388 1388 5001 5001 Not Used N A 1389 138A 5002 5003 Time Since Reset UINT32 0 to 4294967294 4 msec wraps around after max 2 count Block Size 4 d iont Commands Section 4EIF 4E1F 20000 20000 Reset Max Min Blocks UINT16 password 1 4E20 4E20 20001 20001 Reset Energy UINT16 password 1 Accumulators Block Size 2 55EF 55EF 22000 22000 Initiate Programmable UINT16 password meter enters PS update Settings Update mode 55FO 55F0 22001 22001 Terminate UINT16 any value meter leaves PS update Programmable mode via reset Settings Update 55F1 55F1 22002 22002 Calculate UINT16 meter calculates 1 Programmable checksum on RAM copy of Settings Checksum PS block 55F2 55F2 22003 22003 Programmable UINT16 read write checksum 1 Settings Checksum register PS block saved in EEPROM on write 55F3 55F3 22004 22004 Write New Password UINT16 0000 to 9999 write only register always 1 reads zero 59D7 59D7 23000 23000 Initiate Meter UINT16 password 1 Firmware Reprogramming Block Size 6 61A7 61A7 25000 25000 Force Meter Restart UINT16 password causes a watchdog reset always reads 0 Block Size 1 658F 659A 26000 26011 Perform a Secure UINT16 encrypted command to 2 Operation read password or change meter type Block Size 12 APPENDIX B 8 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE APPENDIX B MODBUS MAPPING FOR EPM2200 Table Appendix B
81. tes Sub Interval Auto Scroll Display Display Configuration poses ee Power Scale Energy Digits Energy Decimal Places Energy Scale Example Based on Selections Power Direction View as Load Demand Averaging Averaging Method Block or Rolling Interval Minutes Sub Interval Auto Scroll Click to Activate Display Configuration Click Values to be displayed You MUST have at lease ONE selected If incorrect values are entered on this screen the following message appears EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 5 COMMUNICATION INSTALLATION Current CT PT and Energy Settings will cause invalid energy accumulator values Change the inputted settings until the message disappears WARNING SETTINGS Password Enable password for reset Enable password for configuration Change Password Change Switch Device Designation Password Meter is shipped with Password Disabled there is NO DEFAULT PASSWORD Enable Password for Reset Enable Password for Configuration Change Password Change VSwitch Call GE Multilin for Update Information Change Device Designation Enter a new Device label in the entry field 1 Click Update to send a new Profile After programming the Device Profile click e Update to send the new Profile to the connected meter iy If the Update fails the software asks if you want to try again to Update ste e Save to save the Device Profile se
82. th ground Use 2 5 mm wire for this connection 4 1 6 Voltage Fuses GE Multilin recommends the use of fuses on each of the sense voltages and on the control power even though the wiring diagrams in this chapter do not show them e Usea0 1 Amp fuse on each voltage input e Usea3 0 Amp fuse on the Power Supply EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 4 5 4 2 4 6 CHAPTER 4 ELECTRICAL INSTALLATION Electrical Connection Diagrams 4 2 1 Description Choose the diagram that best suits your application and maintains the CT polarity 1 O DN DAH FW Three phase four wire system Wye with no PTs direct voltage 3 CTs 3 element 1a Dual Phase Hookup 1b Single Phase Hookup Three phase four wire system Wye with no PTs direct voltage 3 CTs 2 5 element Three phase four wire Wye with 3 PTs 3 CTs 3 element Three phase four wire Wye with 2 PTs 3 CTs 2 5 element Three phase three wire Delta with no PTs direct voltage 2 CTs Three phase three wire Delta with 2 PTs 2 CTs Three phase three wire Delta with 2 PTs 3 CTs Current only measurement three phase Current only measurement dual phase 10 Current only measurement single phase These diagrams are indicated in the sections following EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 4 ELECTRICAL INSTALLATION 4 2 2 1 Wye 4 Wire with no PTs and 3 CTs no PTs 3 Element For this wiring type se
83. the screen for configuration mode 1 Press the DOWN or RIGHT button for example from the ct n message below to display the password screen if enabled in the software 2 Use the DOWN and RIGHT buttons to enter the correct password refer to Reset Mode on page 7 4 for steps on password entry EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE T 7 7 8 LE n j CHAPTER 7 CONFIGURING THE METER USING THE FRONT PANEL 3 Once the correct password is entered push ENTER The ct n message will reappear the PRG faceplate LED will flash and the first digit of the B screen will also flash ENTER MENU ENTER E n TAN N le UL ILI MENU ENTER MENU Lm Lm m nnn UU ENTER p Cc is lt c y lt a q Y 4 Use the DOWN button to change the first digit 5 Use the RIGHT button to select and change the successive digits 6 When the new value is entered push ENTER twice This will display the Stor ALL no screen 7 Use the RIGHT button to scroll to change the value from no to YES MENU ENTER MENU ENTER Stor Stor 7 8 Whenthe Stor ALL YES message is displayed press ENTER to change the setting c Y W Y The Stor ALL donE message will appear and the meter will reset MENU ENTER Stor Tone LL dont e lt q EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 7 CONFIGURING THE METER USING
84. 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 is tied together and is typically grounded l 2 EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT The following table indicates the common voltages used in the United States for wye connected systems Table 1 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 deltaconnected load but the service to the facility is still a wye service it contains four wires if you trace the circuit 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 i
85. ttings in a file e Cancel once you have loaded or saved the Device Profile to Exit the EPM2200 Profile screen EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE a 11 CHAPTER 5 COMMUNICATION INSTALLATION If you click Cancel before Save or Update you will lose any changes you have made to the A Device Profile WARNING 2 Use GE Communicator EXT to communicate with the device and perform required tasks Refer to the GE Communicator EXT User s Manual for more details You can access the manual online by clicking Help gt Contents from the GE Communicator EXT Main screen EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE Digital Energy Multilin EPM 2200 Multi function Power Metering System Chapter 6 Using the Meter 6 1 Introduction The EPM2200 meter can be configured and a variety of functions can be accomplished simply by using the Elements and the Buttons on the meter face This chapter will review Front Panel Navigation Complete Navigation Maps can be found in Appendix A of this manual Reading Parameter type indicator designator of Load Bar Scale Selector FIGURE 6 1 Faceplate of EPM2200 Meter with Elements 6 1 1 Meter Face Elements e Reading Type Indicator Indicates Type of Reading EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 6 2 CHAPTER 6 USING THE METER e of Load Bar Graphic Display of Amps as of the Load e Parameter Designator I
86. uired 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 in order to maximize the return on plant invested to deliver energy When lines are carrying VARs they cannot carry as many watts EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE CHAPTER 1 THREE PHASE POWER MEASUREMENT So keeping the VAR content low allows a line to carry its full capacity of watts In order to encourage customers to keep VAR requirements low most utilities impose a penalty if the VAR content of the load rises above a specified value 1 3 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 real power _ watts Total PF apparent power VA EQ 1 1 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
87. unicate with EPM2200 slave devices Meter Connection To provide power to the meter use one of the wiring diagrams in Chapter 4 or attach an Aux cable to GND L and N The RS 485 cable attaches to SH and as shown above 5 2 1 Factory Initial Default Settings You can connect to the EPM2200 using the Factory Initial Default Settings This feature is useful in debugging or in any situtation where you do not know the meter s programmed settings and want to find them When the EPM2200 is powered up you have up to 5 seconds to poll the Name Register as shown in the example below How to Connect You will be connected to the meter with the Factory Initial Default Settings The meter continues to operate with these default settings for 5 minutes During this time you can access the meter s Device Profile to ascertain change meter information After the 5 minutes have passed the meter reverts to the programmed Device Profile settings a Factory Initial Default Settings v e Baud Rate 9600 e Port COM1 e Protocol Modbus RTU NOTE How to Connect 1 Open GE Communicator EXT software 2 Click the Connect button on the tool bar FIGURE 5 6 Connect Button The Connect screen appears showing the Default settings Make sure your settings are the same as shown here Use the pull down windows to make changes if necessary EPM 2200 MULTI FUNCTION POWER METERING SYSTEM USER GUIDE 5

EPM 2200

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