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AEMC PowerPad Model 3945-B Power Quality Analyzer

1. M cm de b M 3 t 5 0ms Vi 276 V2 140 V3 145 gt SSS RMS THD CF max Figure 2 2 e S EHE BH EHE D Top display bar indicates Symbol of the tested mode e g Cr l WM etc Frequency of measured signal Memory capacity status bar only available in certain modes Current date and time Battery charge status Measured RMS values associated with waveforms Values of signals at an instant t at the intersection of cursor and the waveforms The cursor can be moved along the time scale by pressing the 30 buttons 14 Power Quality Analyzer Model 3945 B Measurement selection RMS True RMS Measurement THD Total Harmonic Distortion CF Crest Factor max min Maximum and Minimum values Simultaneous display of the various measurements in alphanumeric form Phasor diagram i The calculation of the DPF Tan KF UNB Min Max VAR Harmonics PST and DF parameters and the frequency measurement can only be performed if voltage with a frequency of 41 to 70 Hz is applied to the Ch1 voltage input 5 Selection of waveforms to be displayed use the AX buttons to select 3U displays the 3 phase to phase voltages U1 2 U2 3 U3 1 3V displays the 3 phase to neutral voltages V1N V2N V3N 3A displays the 3 phase currents 4A displays the 3 phase currents and the neutral curr
2. 3 881 kw 4000 gt 3900 3800 mn gt 10 15 20 25 30 Figure 5 24 In the example above the display shows the average value of the real power on the phase L1 The value is updated as the cursor is moved with QQ buttons Hold the cursor button down to switch to fast forward Energy Measurement for a Determined Period 07 25 02 10 39 100 755 2 wh 4000 e x L2 3900 L3 Vv 3800 mn gt 10 15 20 25 30 Figure 5 25 62 Power Quality Analyzer Model 3945 B The energy over a selected period can be calculated from the average power records Move the cursor to the start time Press the Q function button Move the cursor with QQ buttons to the desired end time The energy value is displayed with end date and end time It is possible to make an energy measurement over several recording ranges in the 4 quadrants All of the data in a recording session can be downloaded to a com puter using the DataView software e I The AD and A buttons allow the integration period of the displayed measure ment and the graph time scale to be changed Display Averaging Period Graph Scale 2 hours over 5 days 1 hour over 2 1 2 days 15 minutes over 15 hours 10 minutes over 10 hours 5 minutes over 5 hours 1 min
3. Range 5mA to 50mA 50mA to 1A 1A to 6A Error 0 35 1 5mA 0 25 1mA 0 25 0 5mA Phase Error 0 5 0 4 0 33 Primary Voltage Loss lt 0 3V Permanent Overload 10A Temperature Influence lt 0 1 par 25K Frequency Influence 65Hz to 500Hz 500Hz to 1kHz 1kHz to 5kHz Error 0 196 0 396 0 596 Phase error 0 1 0 2 1 Power Quality Analyzer Model 3945 B 29 CHAPTER 4 OPERATION i NOTE Charge the instrument fully before use The instrument is turned ON by pressing the green button The startup screen appears and indicates the instrument s software version and serial number If there is no AC power supply the instrument operates on batteries The instru ment s batteries are charged when it is connected to a 120 240 60 50Hz line The instrument is turned OFF by pressing the green button Confirmation will be asked if the instrument is recording or detecting transients i The current probes connected are identified at power ON only Use the same probe type for each phase When changing type of probe restart the 3945 B or select the correct probe type using the set up mode When installing probes face the arrow on the probe in the direction of the load 4 1 Instrument Configuration Set up mode NOTE All configurations are available through the DataView software i The instrument must be configured the first time it is used and then
4. Figure 6 7 For detailed instructions and descriptions for any feature in a dialog box click on the Help Button lower right side of the dialog box or right click on the feature you want information about 74 Power Quality Analyzer Model 3945 B 6 6 3 Alarm Conditions Configuration The Alarm Conditions window allows you to set up 10 alarm configurations Conture the strument 000000000 Setup Instrument Display Alarm Conditions Recordings Transients Monitoring Hysteresis 5 Disable All Alarms SE Alarm Conditions Capture Parameter Phases or Threshold Duration 1 Wiwms gt lt 7 10 v 1 sr 2 M Ams X a z lt 60 A 1 s x 3 Mike s 59 9 Hz 1 s 4 Vi pF Men lt 0 80 is 5 None 6 we 7 Nonesux 8 Noe 9 wm v f B2 V 10 u0ms v 10 fims lt gt 08 Vv 10 uoms Load From File J C ReRead fom Instrument Save To File Ce jJ exe J J Figure 6 8 e Hysteresis This value for alarms is set to prevent multiple recordings of an event that goes above the threshold and a certain percentage below it at times Example f the alarm threshold is 100 Volts or higher hysteresis is 1 When the voltage goes up to 100V the alarm condition starts When it goes back down to 99V the alarm condition stops e Disable All Alarms When this box is checked all alarms will be disabled e
5. Figure 6 2 Power Quality Analyzer Model 3945 B 9 In the Ready to Install the Program window click on Install 10 If the instrument selected for installation requires the use of a USB port a warning box will appear similar to Figure 6 3 Click OK Fr DataView InstallShield Wizard Do not connect the AEMC USB Instrument or cable until after the installation of the drivers and the DataView software has finished If the AEMC USB Instrument or cable is connected to the computer now then disconnect it from the computer before proceeding Figure 6 3 NOTE The installation of the drivers may take a few moments Windows may even indicate that it is not responding however it is running Please wait for it to finish r 11 When the drivers are finished installing the Installation Successful dialog box will appear Click on OK 12 Next the Installation Wizard Complete window will appear Click on Finish 13 A Question dialog box appears next Click Yes to read the procedure for con necting the instrument to the USB port on the computer AN NOTE The Set up window remains open You may now select another option to download e g Adobe Reader or close the window 14 Restart your computer then connect the instrument to the computer 15 Once connected the Found New Hardware dialog box will appear Windows will complete the driver installation process automat
6. tt em tx te tc tu tu tw ts ca tc tx tu tc Figure 6 19b Power Quality Analyzer Model 3945 B 87 6 8 6 Saving Real time Measurements Real time data received from an instrument can be saved directly into a record ing session database This differs from the process of downloading and saving recorded data in that the measurements are stored on the computer as the instru ment measures them These measurements are not necessarily being stored within the instrument However the instrument may be configured to record at the same time real time measurements are being received from the instrument In which case two copies of the measurements will be stored One copy is stored on the local computer and the other in memory within the instrument To Save a Real time Measurement 1 From the Realtime Trend window check the Rec to PC checkbox 2 In the Save As dialog box that appears specify the type of file to save in the Save as Type field The choices are dvb DataView database xls Excel spreadsheet or csv Comma Separated File Specify the name of the file by typing it into the File name field select the desired location to save the file then click Save to save the file 3 When the Rec to PC option is unchecked the file can be opened by selecting Yes from the View Saved File dialog box To edit the Session Properties return to the Power Analyzer Control Panel and select File Edit Session Prop
7. D Values measured for each phase at cursor position in the example shown above the 3 harmonic is selected and displayed The information displayed is Harmonic order Percentage relative to the fundamental RMS value Phase angle in relation to the fundamental according to the measure ment type chosen in this example V with the variable function buttons just below the screen 46 Power Quality Analyzer Model 3945 B Cursor enables selection up to 50 harmonic with the buttons As soon as the 25 harmonic is reached the 25 to 50 range appears 0 represents the DC component 8 Selection of expert mode is available for 3 phase hookups by pressing the buttons see 5 2 4 for description 5 2 2 Single Phase and Phase to Phase Current Analysis W l 60 00Hz VAQ7 25 02 10 26 100 Ah 03 34 1 2 8 A 040 max 34 5 max 1 1 THD 36 5 lt gt 50 zk 3L L2 25 L3 v 1 3 5 7 9 11 13 15 17 19 21 23 25 V A VA U OIl Figure 5 9 Selection of 3 phase or individual phases L1 L2 and L3 displays The total THD The MIN and MAX instantaneous values The parameters for the harmonic order selected by the cursor Percentage in relation to the fundamental RMS value and phase angle in relation to the fundamental component MIN MAX instantaneous values for the selected current harmon
8. 18 Power Quality Analyzer Model 3945 B Function Range Display Resolution Accuracy Apparent Energy Vah OVAh to 9999MVAh 4 digits 1 1ct Unbalance vunb Aunb 0 to 100 0 1 1 dct three phase supply Phase angle VI 1 1 V V 179 to 180 1 2 Harmonics ratios F 40 to 69Hz 0 to 999 i Vrms gt 50V 1 to 50th harmonic 0 1 A UAK oci rms gt Inom 100 Harmonics angles r F 40 to 69Hz 1 ES nee ee ji 43 Vrms gt 50V 26 to 50 10 rms gt Imax 100 Total harmonics distortion 0 to 999 o Vthd Athd Uthd 50 harmonic 01 i tocs Current K factor Akf 1 to 99 99 0 01 5 1ct Voltage flicker Vflk 0 00 to 9 99 0 01 not specified Note MiniFlex specified up to 1000A only Vdem Adem and Udem Values measured on half cycle allow to get a measurement with positive and negative values Vpm Upm and Apm Peak values min 3 2 4 Nominal Range of Use Frequency 40 to 69Hz Harmonics THD I 0 to 40 THD U 0 to 20 Magnetic field lt 40 0A m Earth s magnetic field Electrical field lt 3V m Relative Humidity 10 to 90 without condensation 3 2 5 Power Supply AC Power internal power supply Operating Range 230VAc 20 and 110VAc 20 88 to 276VAC Max Power 30VA Battery Power allows use in the event of an interruption Type NiMH 3800 mAh Output 4 wire 2 for temperature probe Rated Voltage 9 6V Charge T
9. eene 99 Repair and Calibration ssssssssssssseeeeeeeeeren ennt 102 Technical and Sales Assistance esssessee 102 Limited Warranty ciiirt iecur dede tine bcd eee Portes 103 Warranty Repairs ainicin e ect oL Reed qe de Tee a ares ectoed gota 103 6 Power Quality Analyzer Model 3945 B CHAPTER 1 INTRODUCTION Warning Never use on circuits with a voltage higher than 600V and an overvoltage category higher than CAT III or IV probe dependant Use in indoor environments only Only use accessories that are compliant with the safety standards IEC 664 1 Ed 92 600V min and overvoltage CAT III or IV Only use factory specified replacement parts Always disconnect the power cord measurement leads and sensors be fore replacing the battery 1 1 International Electrical Symbols Signifies that the instrument is protected by double or reinforced insulation CAUTION DANGER Read the User Manual Risk of electric shock The voltage at the parts marked with this symbol may be dangerous Refers to a type A current sensor This symbol signifies that application around and removal from HAZARDOUS LIVE conductors is permitted Refers to a type B current sensor Do not apply around or remove from HAZARD OUS LIVE conductors without additional protective means de energizing the circuit or wearing protective clothing suitable for high voltage work Important instructions to read and underst
10. EJAN RS IRERLEIW rw a Figure 6 16a 248 na Le mcmw re _ Figure 6 16b The Photographs window displays a list of photographs snapshots with the date and time taken when the camera button was pressed When View is selected it shows the waveforms power data and Bitmap image of the PowerPad screen from the time the camera button was pressed i Snapshots can only be initiated using the camera button on the PowerPad itself not by DataView 84 Power Quality Analyzer Model 3945 B 6 8 3 Alarms A fe Wes moment Tom Wade suy 342 Vv ET Sctw ew Sa ee ee tees zase zo nens f 3er 1m nran Du T2808 135378 Tu uae 33351331333133133133333333 sistzt tidid Figure 6 17 The Alarms window displays a list of alarms recorded on the PowerPad A subset of the list can be viewed by the phase of the triggering event Alarms can be selected and downloaded to a database The downloaded alarms contain no more information than is shown in the screen display Alarm Phase Allows the user to select which type of alarms to display either all those that were triggered by an event in phase 1 2 or 3 neutral phase or an event that involved multiple phases or no phase such as frequency 6 8 4 Transients ie We reme Tum wawe e os ERS nef a TV a nomp Ampla Tn rer De Der Demi ecse soram wi DW 8c iq aces VTL WOW Xll wa sm n
11. Figure 5 11 First column The harmonics inducing a negative sequence are displayed Second column Those inducing a zero sequence triplens added into the neu tral are displayed Third column Those inducing a positive sequence are displayed Harmonic content is useful to evaluate the influence of harmonics that cause heat ing of the neutral or on rotating machines Power Quality Analyzer Model 3945 B 49 5 3 Power Energy Mode VV Press the power display mode button WV This will enable Measurement of the real power generated and consumed Measurement of reactive power capacitive or inductive Measurement of apparent power W Choice of power parameters PF Power factor Q Starts energy totalization 5 Stops energy totalization WW Resets the counters to zero CG2 Displays the generated or consumed energy 5 3 1 Starting and Stopping Energy Totalization WM 60 00Hz 07 25 02 10 49 100 07 25 02 10 49 21 _ 07 25 02 10 55 08 kw 43 241 43 768 3 435 AT Wh 0000203 0000334 0000304 kvar amp 1 997 amp 0 241 amp 0 120 E O vARh amp 0000123 0000021 0000011 5 0000000 0000000 z 0000000 vo kVA 3 809 3 796 3 452 VAh 0000244 0000336 0000306 w PRE Kea e fen ha Figure 5 1
12. lt alarms the value or lower must be reached Duration The Alarm will only be recorded if the duration of the parameter meeting the threshold criteria exceeds the duration The minimum alarm duration can be in minutes or seconds In the case of Vrms Urms or Arms not using neutral current can also be in hundredths of a second For Vrms Urms and Arms it can be useful to set a duration of 0 seconds In that case an event as short as a half cycle can be detected 8 millisec onds at 60Hz For all other parameters the minimum duration that can be detected is 1 second i You can check for alarms records and search for transients at the same time 76 Power Quality Analyzer Model 3945 B 6 6 4 Recordings Configuration The Recording window shows the dialog box used to configure the parameters for a recording session cotgerenmnmet MM l Seno instrument Ospiay Alarm Condibong Wecor ngs Transents Monitoring Confess ater tartar New Recording 2 3 4 9 Schedule Recording Name up to R ches J Zum J utd Jud SAMPLH Stars Tee Ending Time v amp S5200PM AversgngPerod 1a va e X Odd Marmoncs on Manamum recording tme Q0 hours 33 If al recordings were deleted fe mavmur rare ould be 01 hours 21 ewwtes 35 seconds Memory Used 39 Load From Fie Rc Arad tom Insist Save To Fie Cancel aon eo Figure 6 9 Four different configurations are available More configurations ca
13. 3 Phase 3 Wire 3 Phase 4 Wire Figure 4 3 Choose the hookup type with the 2X and 3 buttons Press the NK button to apply the new hookup selection Hookup Types Single or two phase The neutral current is not measured or calculated 3 phase 3 wire connection 3V 3A On DELTA network Only power totals are measured Powers per phase are displayed but not valid On WYE network The neutral current is not calculated It is necessary to connect neutral V to obtain the power per phase 3 phase 4 wire connection 4V 3A The neutral current is available and its value and waveform are displayed On WYE network Powers per phase are available NOTE Neutral current is calculated not measured in the 4 wire hookup i V1 must be connected in all hookups since the display is synchronized from V1 and the network frequency measured by V1 Neutral current is calculated by adding for each datapoint each of the 3 measured phases of current This assumes that all current flows through neutral This results in a 256 datapoint waveform If the 3 phases of current were balanced the calculated neutral current would be 0 for every datapoint Power Quality Analyzer Model 3945 B 33 Synchronization of the Display in Waveform mode Display selection Reference channel vertical right menu for synchronization U1 V1 A1 V1 V2 V3 4 1 6 Current Sensors Highlight CURRENT SENSORS with the X buttons then p
14. carrying bag soft carrying pouch and user manual i Only the SR Ampflex and MiniFlex sensors are rated 600V CAT IV The MN MR and SL probes are 300V CAT IV 600V CAT III 1 4 1 Accessories and Replacement Parts Large Classic Tool Bag eet titt tn ett ce ae es Cat 2133 73 Set of 3 Color coded MN93 Probes 2404 sees Cat 2140 09 Set of 3 Color coded SR193 Probes 12004 sss Cat 2140 10 Set of 3 Color coded 24 AmpFlex 193 24 Probes 65004 Cat 2140 11 Set of 3 Color coded 36 AmpFlex 193 36 Probes 65004 Cat 2140 12 Set of 3 Color coded MR193 Probes 1000Aac 1400ADc Cat 2140 13 Set of 3 Color coded MN193 Probes 6A 1204 Cat 2140 14 Pouch Replacement Soft Carrying Pouch sssrin Cat 2140 15 5A Adapter Box for 1 or 5A probes sssse Cat 2140 17 10 ft Cable PC RS 232 DB9 F F esseeeem Cat 2140 18 Replacement Battery 9 6V NiMH eee Cat 2140 19 DPU414 30B Seiko Serial Printer with Accessories power supply rechargeable battery and 5 rolls of paper Cat 2140 21 Paper set of 5 rolls for use with Printer DPU414 30B Cat 2140 22 Set of 3 Color coded MN93 Probes 30 ft Leads 2004 Cat 2140 24 Power Quality Analyzer Model 3945 B 9 Set of 3 Color coded SR193 Probes 30 ft L
15. eri vom ever ioo wo i aca Y wOm we ovy wa aha s o Figure 6 18a Power Quality Analyzer Model 3945 B 85 The Transients window displays transients stored on the PowerPad It shows the number and name of the recording and the time it began and ended The selected transient s can either be downloaded or deleted St OEE O D nas B 194 A amp wrarcmw te waes omen Figure 6 18b The downloaded result contains many waveforms Use the controls gt lt and lt gt located at the lower right corner of the window to zoom in or out of the data These controls are available in every graph from recorded data There is also a checkbox View As List which can be used to show the value of every datapoint 86 Figure 6 18c Power Quality Analyzer Model 3945 B 6 8 5 Monitoring The Monitoring window displays recorded tests that can be downloaded and ana lyzed COCER te as Pear Paget tiae Taree LD F varm w tire o tier WC 1200074 1200 Figure 6 19a After selecting a recording and clicking View the summary window appears showing the results after all the data has been downloaded to a database It dis plays the name percent of the 10 minute periods that it has been out of range followed by the range it needed to be within cm Coo Cu Cw Mowe Vote ant freee Pema EL xe wu vsum wo iw tx ce coe tw tw tu
16. lt 1 without superimposed DC current Magnetic field of external origin lt 40 A m earth s magnetic field Accuracy Specifications Range 10mV A 1V 100Arms Primary current in AAC 0 1A to 1A 1A to 120A Accuracy 96 of the output signal lt 1 2cts lt 1 1ct Phase shift lt 1 5 lt 1 Overload 120A continuous Range 200mV A 1V 5Arms with ratio 1000 5 selected Primary current in AAC 1 to 10A 10 to 100A 100 to 1200A Probe output 5 to 50mA 0 05 to 0 5A 0 5 to 6A Accuracy 96 of the output signal 1 596 ict lt 1 5 ict lt 1 1ct Phase shift lt 1 7 lt 1 lt 1 Overload 12A continuous Power Quality Analyzer Model 3945 B 23 Factors affecting accuracy of the output signal Conditions Range Error Ambient temperature 14 to 131 F 10 to 55 C lt 200 ppm K or 0 2 per 10K Relative humidity 10 to 35 C 85 lt 0 2 Frequency response 40Hz to 3kHz 40Hz to 1kHz lt 0 7 1 to 3kHz lt 2 Positions of the cable in the jaws lt 0 5 to 50 60Hz Adjacent conductor carrying a 60Hz AC current Conductor in contact with the sensor lt 15mA A 3 9 AC Current Probe AmpFlex Probe 3945 8 accuracy included the load Nominal Range 3000AAc Measurement Range 10A to 6500AAc max Probe Output Signal 140mVAc 3000A c at 50Hz
17. 0 0 0 0 0 3 0 3 ax a tH 277 30 16 EB cF 161 140 145 D L3 kF 192 1 03 1 00 v DF 25 9 2 9 1 5 RMS THD CF mm Figure 5 6 amp LO As seen on the bar on the right K factor is only available for currents 4A 3A or 2A depending on hook up of leads As seen on the bar on the right flicker is only available for voltages 3V or 2V depending on hook up of leads Flicker and K factor are available when either L1 L2 or L3 is selected from the choices on the right side of the screen DC current will be displayed however the values are only valid when a current probe capable of measuring DC is used The MR193 probe is available for this purpose 44 Power Quality Analyzer Model 3945 B 5 1 7 Phasor Diagram Display Fresnal Diagram 59 99Hz 07 25 02 10 26 100 V3 iv4j 202 8 v iva 198 7 v iv3 203 2 v EX 4A 12 122 V1 23 118 L3 31 120 v T_unpatance 1 5 V2 RMS THD CF min Figure 5 7 IS SSS HH HH HH D Absolute value of voltage or current depending on display selection 012 corresponds to phase angle between channel 1 and channel 2 23 corresponds to phase angle between channel 2 and channel 3 31 corresponds to phase angle between channel 3 and channe
18. F 1024 ck amplitude of the component with a frequency of f HU Fs sampled signal co DC component k ordinal number spectral bin Multiplying the voltage harmonic factor with the current harmonics factor gives the power harmonic factor Differentiating voltage harmonic phase angle with current harmonic phase angle gives power harmonic phase angle VAharm 3 51 VAph 3 51 Distortion Factor Calculation DF Two global values giving the relative quantity of harmonics are computed the THD in proportion to the fundamental and the DF in proportion to the RMS value 22 Vharm i ln z Uhan nl 23 Aharm ilInT T i Vrms li e t E Urms li Ee lil d Arms i 94 Power Quality Analyzer Model 3945 B K Factor y n Aharm i n i Akf i K factor for the i 1 phase n 50 2 Aharm i 5 i Different Power Levels 1 Sec NSS 1 w x 3 v Ella A i n Active power i 1 phase n 0 VA i Vrms i Arms i Apparent power i 1 phase NSS 1 VAR i Y VF illn NSC 4 AF i n Reactive power i 1 phase n 0 NSS or VAR i AVA i 2 W i if computation method is with harmonics W 3 W 0 W 1 W 2 Total active power VA 3 VA 0 VA 1 VA 2 Total apparent power VAR 3 VAR 0 VAR 1 VAR 2 Total reactive power Power Quality Analyzer Model 3945 B 95 Ratios Wii VA i DPF i cos i 1 phase displacement factor m PF i 1 phase power facto
19. Factor PF 0 634 0 998 0 995 a L1 DPF or Cosine 9 DPF 0 742 0 999 0 999 V Tangent Tan 0 439 0 050 0 035 BEEN PF e c E Figure 5 13 Four Quadrant Power Diagram Reactive Power from supply Reactive Power from load 3 4 J Var Produced Consumed Figure 5 14 Power Quality Analyzer Model 3945 B 51 5 4 Transient Mode Press the transient display mode button Transients are displayed in the form of waveforms All channels up to 6 based upon configuration are stored in memory for each transient Up to 50 transients can be captured which include the pre tripped waveform the tripped waveform and two post trip waveforms for each active input The function buttons have the following functions in this mode Starts capture search programming for a new transient 5 Stops capture search Lap Displays a captured transient WE Deletes a captured transient Cw 07 25 02 10 54 100 SEARCH FOR NEW TRANSIENTS SLOTS AVAILABLE 50 START 07 25 02 10 55 END 07 25 02 10 55 V threshold 1 o threshold 1 Number t3 3 NAME TEST Cor RH Figure 5 15 Transient recording start and end time Trigger threshold selection of 1 296 5 10 20 50 100 of full scale for voltage and current are available Press the QQ buttons to select either V or A then use the pod b
20. Wh 1 0 Wh 1 1 Wh 1 2 Total apparent energy consumed VAh 1 3 VAh 1 0 VAh 1 1 VAh 1 2 Total reactive capacitive energy consumed VARhC 1 3 VARhC 1 0 VARhC 1 1 VARhC 1 2 Total reactive inductive energy consumed VARhL 1 3 VARhL 1 0 VARhL 1 1 VARhL 1 2 Power Quality Analyzer Model 3945 B 97 Hysteresis Hysteresis is a filtering principle often used after the threshold detection has occurred A correct setting of hysteresis value will avoid repeated triggering when the measure is varying close to the threshold The event detection is activated when the measure is going over the threshold but it can only be deactivated if the measure goes under the threshold minus the value of the hysteresis The default hysteresis value is 2 of the reference voltage but it may be set in the range of 1 5 depending of the voltage stability on the system Alarm for high voltage RMS Swell Detection Threshold of swell 100 Uref Level to go back 100 2 98 Uref Hysteresis 2 Uref Swell duration gt Alarm for low voltage RMS Sag or Interruption Detection Duration Level to go back 100 2 Uref Hysteresis 2 Uref Threshold 102 Uref 98 Power Quality Analyzer Model 3945 B Symbol Vrms Arms PF Urms Vthd Athd VARS DPF Uthd Vef Acf VA Tan Ucf Vunb Aunb PST Akf Vh Ah 3L APP
21. adapter is rated EN 61010 300V CAT III and permits the use of standard current probes with either a 1A or 5A output 28 Power Quality Analyzer Model 3945 B 3 12 1 Connecting to Secondary Current Transformer CT WARNING Use caution when connecting to a secondary current trans former Short the two leads of each secondary current measurement transformer 2 Never open a secondary circuit of a CT if its primary circuit is connected to a supply voltage In any case disconnect the primary measurement transformer circuit from the supply network 3 Connect each CT secondary to the input of the 5A adapter in the correct order ground on P2 and the right phase order L1 L2 L3 3 12 2 Specifications add PowerPad accuracy 0 5 1ct e 1 Range Output Input Ratio Dimensions Weight Impermeability Electrical safety Currents lt Primary x 5 Secondary x 1000 will be displayed as zero on the PowerPad with this probe 5A 0 2mV mAAC 6 00 x 3 74 x 3 38 153 x 95 x 86mm 1 98 Ibs 900g IP50 per EN 60529 electrical IP2X for the terminals Double Insulation 300V CAT III Pollution Degree 2 per IEC 61010 1 Operating Temperature 5 to 131 F 15 to 55 C 0 to 90 RH Storage Temperature 40 to 185 F 40 to 85 C 0 to 90 RH Reference Conditions 73 F 23 C 3K 50 to 85 RH 50 60Hz 2Hz Current measurement according to IEC 44 1 Class 0 5
22. be used for phase to neutral voltage measurement e I All specifications are subject to change without notice 3 2 Electrical Specifications Sampling Frequency 256 samples per cycle 12 8kHz samples sec per channel 50Hz 15 36kHz samples sec per channel 60Hz Memory Size 4MB Memory Partition Data Logging 2MB Waveform capture XXMB Transient capture XXB Alarms XXB 3 2 1 Voltage Inputs Operating Range Phase Phase 960Vrms AC DC Phase Neutral 480Vrms AC DC Input Impedance 340kQ between phase and neutral Overload 1 2Vn permanently 2Vn for 1 sec Vn nominal voltage Power Quality Analyzer Model 3945 B 17 3 2 2 Current Inputs Operating Range 0 to 1V Input Impedance 100kQ for current probe circuit and 12 4kQ for AmpFlex circuit Overload 1 7V 3 2 3 Accuracy Specifications excluding current probes Function Range Display Resolution Accuracy Frequency 40 to 69Hz 0 01Hz 0 01Hz Single phase MS voltages 15V to 480V 0 1V 10 596 2cts Vrms Vdem P hase tophase RMS voltages 15V to 960V 0 1V 40 5 2cts Urms Udem DC voltage component 15V to 680V 0 1V 1 5cts Single phase peak voltages 15V to 680V 0 1V 1 5cts Vpp Vpm Phase to phase peak voltages 0 1 V if I lt 1000 V Upp Upm 15V to 1360V 1Vifl 1000 V 1 5cts Current probe Arms Adem Inom 1000 to 1 2 Inom p sry 40 5 2cts Am
23. for voltage Calculation of the phase unbalance for voltage and current 3 phase only e Measurement of harmonic angles and rates referenced to the fundamen tal or RMS value for voltage current or power up to 50 harmonic e Calculation of overall harmonic distortion factors Monitoring of the average value of any parameter calculated over a period running from 1 sec to 2 hrs Measurement of active reactive and apparent power per phase and their respective sum total Calculation of power factor displacement power factor and tangent factor Total power from a point in time chosen by the operator Recording time stamping and characterization of disturbance swells sags and interruptions exceedence of power and harmonic thresholds Detection of transients and recording of associated waveforms Power Quality Analyzer Model 3945 B 11 2 2 Control Functions QO 12 i i AEMG MODEL394E 8 INSTRUMENTS 49 99Hz 07 25 02 10 26 100 03v 03v 03v L 300V o 3A 9 L1 D 5 0ms Vi 0 V2 0 V3 0 gt 9 RMS THD CF e FEEE O J RE D rwr aaao ezo3L s z KD o A enr Figure 2 1 Over molded protective case Color LCD disp
24. hep Figure 6 4 Make sure that the serial port displayed in the dialog box matches the port you plugged the serial cable into If the correct serial port is not selected click on the drop down menu to select it The Baud Rate needs to be set at the same rate as the Model 3945 B The Baud Rate can be selected from the Communication Rate drop down menu To check the baud rate on the instrument Turn ON the Model 3945 B by pressing the green button e Press the menu button mu Scroll down with the Z button until you reach BAUD RATE Press the enter button NJ and read the baud rate Set to read 115200 When the proper communication parameters have been specified click OK 70 Power Quality Analyzer Model 3945 B For detailed instructions and descriptions for any feature in a dialog box click on the Help Button or right click on the feature you want information about Once the communication link is established DataView will automatically identify the instrument that it is connected to The Control Panel will appear E WENEENENLLLL eene AA CST WSuUT wtTw r if t IDE i neopn2ss ari iidbgci I i H LLLI i aea O ome ama Hs hl HH 1 um it if iii F vnam maw Figure 6 5 This Control Panel displays Recorded Data from the instrument Realtime Data Connection status The communi
25. is recommended to set multiple times of 2 for 2 min of 5 for 5 min i The instrument automatically corrects the start and end time in order to improve the readability of the time scales of the recording mode graph rep resentation Power Quality Analyzer Model 3945 B 59 5 6 3 Selecting a Graphic Display for Recorded Measurements Recorded data can be displayed in graphic form Select the recording to be displayed using the buttons Then open the recording by pressing the button A screen similar to figure 5 21 will appear 07 25 02 10 56 100 RECORDING TEST 1 START 07 25 02 17 58 END 07 25 02 18 27 PERIOD 1mn SELECTION OF MEASUREMENT TO VIEW F Urms Uthd Vrms relies Figure 5 21 Use the function buttons to enable direct selection of the measurement to be displayed Pressing the key enables the user to scroll through all the measurements selected when the record was programmed Example when Vrms is Selected 07 25 02 10 38 100 vrms 1 204 7 v 2 203 4 v 3 204 0 v gt 220 0V 210 0V Figure 5 22 60 Power Quality Analyzer Model 3945 B Display of the av
26. lt 2 APC Temperature oaos T Scale lt 300ppm C or 0 3 10 C Relative humidity 10 to 90 RH 0 5 of Reading Battery voltage 6 5 to 10V lt 1A V DC at 440Hz lt 0 5 of Reading Position of a DC at 1Hz lt 1 of Reading 20mm 20 conductor DC at 2Hz lt 3 of Reading DC at 5Hz lt 10 of Reading Live adjacent conductor 50 and 60Hz lt 10mA Aac 1 from clamp External field 400 A m lt 1 3A Rejection in common mode AC 50 to 400Hz gt 65dB Residual DC 1300Apc at 1300ADc lt 4mA A Frequency of the 65Hz to 440Hz 2 measurement signal TAON to he ae 1kHz to 10kHz 4dB Power Source 9V alkaline NCDA 1604A 6LR61 Battery Life Approx 120 hrs with alkaline Power Quality Analyzer Model 3945 B 27 3 12 Three phase 5A Adapter Box This adapter is a three phase adapter with three 5Aac inputs L1 L2 L3 and three AC voltage outputs All circuits are independent and isolated between input and output The outputs are equipped with connectors to mate with the PowerPad Model 3945 B current channel inputs It facilitates automatic sensor recognition and probe ratio programming for both 1A and 5A output probes Additionally the adapter box can be used directly in series ina5 Amp circuit The input connections accept either 4mm male plugs or rigid leads between 1mm and 2 5mm inserted in the side hole after pressing the spring loaded con nector down to expose the hole WARNING This
27. qualified recycling company or to a company specialized in processing hazardous materials x6 E Table of Contents 1 INTRODUCTION ccccscccsseeesseeesssessseessseeesneesssneeeseesssneeesseensneeeesenens 7 1 1 International Electrical Symbols ss 7 1 2 Definition of Measurement Categories sssssssssses 8 1 3 Receiving Your Shipment ssseeee eene 8 1 4 Ordering Information rse nayat e ene 8 1 4 1 X Accessories and Replacement Parts sssss 9 1 4 2 Third Party Accessories sssssssseee 10 2 PRODUCT FEATURES eeeeeeeneee nennen nnne nnn nnn 11 2 4 Descriptlori secet eere e RR ERES ARR RES 11 2 2 Control Functions eere a tte ree de ide deco 12 2 9 Display s nien Se too Mime fete E ee onec 14 2 4 Battery Charge Status sssssssssssssssssseeeeeee nennen 16 3 SPECIFICATIONS 1eeeeeeneeeeeen eene enne nnn 17 3 1 Reference Conditions siniori dieniniai 17 3 2 Electrical Specifications eee cece ce eeeeeeeeeeeeenneeseeeaeeenneeeeenaeeeeenees 17 3 2 1 Voltage Inputs Rete Eee eee edna 17 3 2 2 Current Inputs iie ied ee aede ere trece deer 18 3 2 3 Accuracy Specifications excluding current probes 18 3 24 Nominal Range of Use sssssee eem 19 3 2 5 Power Supply ert eite rtr ied iden 19 3 3 Mechanical Specific
28. set to a 12 hour clock AM PM or a 24 hour clock military 12 24 4 1 2 Contrast Brightness Highlight CONTRAST BRIGHTNESS with the X buttons then press the S button The setting is adjusted with the 32 buttons and the contrast level will be indi cated on the bargraph Press the S button to apply the new settings Power Quality Analyzer Model 3945 B 31 4 1 3 Colors Highlight COLORS with the buttons then press the lt q button The following screen will appear mm 07 25 02 10 26 100 Phase voltage 1 lt gt Phase current 1 lt gt Phase voltage 2 lt E gt Phase current 2 lt EE gt Phase voltage 3 lt gt Phase current 3 Neutral current lt Figure 4 2 Choose the phase with the 4 buttons and the color for that phase with the QQ buttons Press the NJ button to apply the new settings 4 1 4 Calculation Parameters Highlight CALCULATION METHOD with the buttons then press the Sg button Select either With Harmonics or Without Harmonics with the 20 buttons This affects the VAR calculation Press the Sg button to apply the new settings 32 Power Quality Analyzer Model 3945 B 4 1 5 Electrical Hookup electrical network Highlight ELECTRICAL HOOKUP with the EX buttons then press the X button The following screen will appear mm 07 25 02 10 26 10096 N N L1 L1 L2 Single Phase Two Phase NM fe N L1 1 L1 L2 T L2 L3 r L3
29. tnnt 39 5 DISPLAY MODES 1eeeeeeeeeeeeeeeee nennen nnn nnn 40 5 1 Waveform Mode scrieri imen eene ere cecidere cte ove ibd ce ead 40 5 1 1 RMS Voltage Measurement on a Three phase System 40 5 1 2 RMS Voltage Measurement on 3 Phases ssssse 41 5 1 3 RMS Current Measurement on the 3 Phases and Neutral Current on a Three Phase 4 Wire System 42 5 1 4 Total Harmonic Distortion Measurement on One Phase 42 5 1 5 Minimum and Maximum Current Value Measurements 43 5 1 6 Simultaneous Display of the Current Measurements 44 5 1 7 Phasor Diagram Display Fresnal Diagram 45 5 2 Harmonics Mode es em tede Ree ds 46 5 2 1 Single Phase and Phase to Phase Voltage Analysis 46 5 2 2 Single Phase and Phase to Phase Current Analysis 47 5 2 3 Power and Direction Flow Analysis suussss 48 5 24 Harmonic Analysis in Expert Mode sees 49 5 9 Power Energy MQUG ic s cote ups Oups 50 5 3 4 Starting and Stopping Energy Totalization 50 832 SCG BURG Aetoli das 51 b 3 9 PRs Button siete ehe EDI a a 51 5 4 Transient Mode 8 eect gs sa iat eal che ala me 52 5 4 1 Opening Previously Stored Transients 54 5 4 2 Storing the Trigger ccccceccesecceceeeeeseeeceeeeeeeeaeeeeeeesaeeeees 54 Power Qual
30. to the course of the curve the voltage level the frequency and symmetry of the three phase network at the interconnecting point to the customer The goal is to determine limiting values for regular operating conditions However facility defects may lead to major disturbances in the electricity distribution supply network Accordingly the standard establishes these values as limiting values which are not allowed to be exceeded on the high or low side during 95 of the controlled period typically one week Contguretreminment TE MM Setup instrument Ganley Alarm Conditions Recordings Transient MOtoro Select a Recording Configuraben To Se Replaced Tene of Recarding 1 3 4 Starting Tine Ending Time PEET 7 77038 Select 2 Alarm Profiles To Be Replaced 4302010 WMD gt WIIG GS Gad Ge 10 00 00 AM 30 00 00 AM ele Be Mee wie ae mie ee me Cai Set tn 1 Week Nominal Voltage Maximum VoRage vanabon n 100 ms ead 2xw Other w Starting the Montong Test wil reclace the selected recording troie and darm orofies degn new recording with the name E50 160 and start alarm recording Two alarm profles are needed to detect vanatons in voltage lastng longer han 100 ms Make sure Curt the setings of the Setup sc eers we correct that the mstrument probes are connected for the test and the netrument hes AC power Do not shut off the nstrument Write Chances and Start Morsiming Test After the test begns leave the nstrument probes a
31. when ever necessary should your needs change The configuration is saved in the non volatile memory when the instrument is turned OFF When the m button is pressed the following setup choices appear mm 07 25 02 10 26 100 DATE TIME CONTRAST BRIGHTNESS COLORS CALCULATION METHOD ELECTRICAL HOOKUP CURRENT SENSORS BAUD RATE RECORDING ALARM CLEAR MEMORY LINE FREQUENCY Deutsch Caiano Espa ol Portugues Figure 4 1 Francais Engish 30 Power Quality Analyzer Model 3945 B i WARNING When CLEAR MEMORY is selected all configurations are deleted Choose the language by pressing the function button below the desired language Your choice will remain highlighted in yellow e Select the configuration settings you wish to modify with the d buttons As you scroll through the choices they will be highlighted Press the enter button to modify the highlighted selection 4 1 1 Date Time Highlight DATE TIME using the buttons then press the S button Select the number to be modified with the 36 buttons it will appear in bold type Modify the value of the number selected with the buttons Press the button to apply the new settings i The date and time format is indicated at the bottom of the screen This format can also be modified The Date format can be set to MM DD YYYY or DD MM YY Y Y The Time format can be
32. 1 9 Pa N L lt MISES lt t 5 0ms V1 280 V2 144 V3 145 gt RMS THD CF max S Figure 5 4 SESS HH HH HH 42 Power Quality Analyzer Model 3945 B 5 1 5 Minimum and Maximum Current Value Measurements 59 99Hz 07 25 02 10 26 100 O max 21 7 18 8 17 6 A AVG 6 3 18 5 317 1 15 0 a a MIN 0 0 0 0 0 0 Ax L2 PEAK 11 4 25 8 24 0 A i peak 11 0 25 8 24 8 A RMS THD CF mm RAN Figure 5 5 D Crest Factor refreshed every 250ms but calculated every second 2 Select 3V or 4A with to obtain the MIN AVG MAX or PEAK values for current or voltage Select L1 L2 or L3 to obtain these values for an individual phase pie ule MIN AVG and MAX values are measured as soon as the power is turned ON Pressing the enter button will reset these values and begin a new update The MAX and MIN measurements are calculated every half period e g every 10ms for a 50Hz signal The AVG measurements are calculated every second However the MAX AVG and MIN measurements are refreshed every 250ms Power Quality Analyzer Model 3945 B 43 5 1 6 Simultaneous Display of the Different Current Measurements 59 99Hz 07 25 02 10 26 100 O QG RMS 10 4 18 4 16 9 11 6 A DC
33. 2 D Start date and time of energy totalization Stop date and time of energy totalization Selection of the three phases 3L or one in particular L1 L2 L3 by pressing the X buttons Select X to display total for all phases i i 50 The display is automatically adjusted for a display in W VA VAR or kW kVA kVAR It is possible to switch to other display modes without stopping the totalization Incorrect probe installation on phases black on B phase or C phase or arrow on probe facing in the wrong direction towards line instead of load will result in inaccurate data Negative data on one or more phases may be an indication of this Power Quality Analyzer Model 3945 B 5 3 2 CG Button This function key is used to display generated or consumed power or real reactive and apparent energy This button toggles the display between generated energy from load to supply and consumed energy from supply to load each time it is pressed When the CG is highlighted yellow background the display shows generated energy 5 3 3 PF Button In 3L display mode the PF Power Factor DPF Displacement Power Factor fundamental V phase shift or Cosine values and the Tangent q can be dis played by pressing the PF button WM 50 00Hz 07 25 02 10 59 100 O Power
34. A peak lt 1 DC current distortion lt TRADE on the lt 1 nominal AC current Overload Frequency derating beyond 1kHz lii cm in kHz Power Quality Analyzer Model 3945 B 21 3 7 AC Current Probe MN93 Probe 3945 B accuracy included i When installing probes face the arrow on the probe in the direction of the load Nominal Range 200Aac for f lt 1kHz Measurement Range 2A to 240Aac max I gt 200A not permanent i Currents 0 5A will be displayed as zero with this probe Probe Output Signal 5mVAC AAC Maximum Clamping Diameter 0 8 20mm Safety EN 61010 2 032 Pollution Degree 2 300V CAT IV 600V CAT III Reference Conditions Ambient temperature 73 F 23 C 5 F 3 C Humidity 20 to 75 of RH Frequency 48 to 65Hz Distortion factor lt 1 no DC current Magnetic field of external origin lt 40 A m earth s magnetic field Accuracy Primary current AAC 2 to 10A 10 to 100A 100 to 240A Accuracy 5 of the output signal lt 3 1ct 2 596 1ct lt 1 1ct Phase shift lt 6 lt 3 lt 2 Factors affecting accuracy of the output signal Conditions Range Error lt 150 ppm K or 0 15 per 10K Relative humidity 10 to 90 lt 0 2 40Hz to 1kHz lt 3 Temperature 14 to 122 F 10 to 50 C Frequency response 40Hz to 10kHz 4 to 10kHz lt 12 Position of the cab
35. E 3 PHASE POWER QUALITY 3 O9 4 5 B ANALYZER PowerPad IMPORTANT WARRANTY NOTE By registering online or returning your warranty card within 30 days from the date of purchase your warranty will be extended to 3 years AEMC User Manual INSTRUMENTS e Ot p peo p en Statement of Compliance Chauvin Arnoux Inc d b a AEMC Instruments certifies that this instrument has been calibrated using standards and instruments traceable to international standards We guarantee that at the time of shipping your instrument has met its published specifications An NIST traceable certificate may be requested at the time of purchase or obtained by returning the instrument to our repair and calibration facility for a nominal charge The recommended calibration interval for this instrument is 12 months and begins on the date of receipt by the customer For recalibration please use our calibration services Refer to our repair and calibration section at WWW aemc com Serial Cat 2130 74 2130 75 2130 76 2130 77 2130 78 2130 79 Model 3945 B Please fill in the appropriate date as indicated Date Received Date Calibration Due X No Chauvin Arnoux Inc AU D d b a AEMC Instruments p INSTRUMENTS www aemc com oo or domo e C TU M E m READ CAREFULLY BEFORE USING FOR THE FIRST TIME Your instrument is equipped with a NiMH battery This technology offers several
36. ENDIX B GLOSSARY OF TERMS Definition Frequency Volts rms Amps rms Watts Real Power Power Factor Volts phase to phase rms Volts total harmonic distortion Amps total harmonic distortion VARS reactive power Displacement power factor Volts total harmonic distortion phase to phase Volts crest factor Amps Crest Factor Volt Amps apparent power Tangent Volt Amp Volts crest factor phase to phase Volts Unbalanced On the instrument s screen the calculation method is the IEC method that takes into account phase angle Amps Unbalanced On the instrument s screen the calculation method is the IEC method that takes into account phase angle Short term flicker K factor Harmonic volt Harmonic amps Capture of each 3 phases Neutral current calculated Sum of three phase power capture Power Quality Analyzer Model 3945 B 99 2 3 Average value of three phase capture 3U Three phases of voltage phase to phase 3V Three phases of voltage phase to neutral 3A Three phases of current 4A Three phases of current including derived neutral current L1 Phase one of voltage phase to neutral plus current L2 Phase two of voltage phase to neutral plus current L3 Phase three of voltage phase to neutral plus current Up Down buttons Enter button Parameter selected for recording Parameter not selected for recording Left Right selection buttons Right
37. Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Caution To protect yourself against in transit loss we recommend you insure your returned material NOTE You must obtain a CSA before returning any instrument Power Quality Analyzer Model 3945 B 103 NOTES 104 Power Quality Analyzer Model 3945 B AEMC 08 12 99 MAN 100261 v30 Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 603 749 6434 Fax 603 742 2346 www aemc com
38. NOTE Output is proportional to the amplitude and frequency of the measured current Sensor Length 24 610mm 7 64 190mm Length 36 910mm 11 46 290mm i When installing probes face the arrow on the probe in the direction of i Currents below 9A will be displayed as zero with this probe Safety EN 61010 1 and 2 Pollution Degree 2 600V CAT IV 1000V CAT III Reference Conditions Ambient temperature Humidity 64 to 82 F 18 to 28 C 20 to 7596 of RH Position of conductor in the sensor Centered Continuous magnetic field 40A m earth s magnetic field External alternative magnetic field None present External electric field None present Frequency Type of signal measured 10 to 100Hz Sinusoidal 24 Power Quality Analyzer Model 3945 B Accuracy in clamp Any position Primary current AAC 10 to 100A 100 to 6500A Accuracy 96 of the output signal lt 3 1ct lt 2 Phase shift lt 0 5 lt 0 5 Factors affecting accuracy of the output signal Conditions Range Error Temperature 4 to 140 F 20 to 60 C 0 2 per 10 C Relative humidity 10 to 90 RH 0 5 Frequency response 10Hz to 20kHz 0 5 Position of conductor 2 4 near latching system Adjacent conductor carrying an AC current Conductor in contact with the sensor 1 2 near latching system 3 10 AC Cur
39. Q buttons Press the button to apply your selection The Configuration menu will once again be displayed on the screen Power Quality Analyzer Model 3945 B 39 CHAPTER 5 DISPLAY MODES The screen presentations in this section depict three phase setups for the purpose of explaining the various choices Your actual screens will appear differently based upon your particular set up 5 1 Waveform Mode Press the waveform display mode button 5 1 1 RMS Voltage Measurement on a Three phase System 49 99Hz 07 25 02 10 26 100 o_o eee 2202 0 v 202 7 v LA 2 t 5 0ms V1 276 V2 140 V3 145 gt RMS THD CF mm b Figure 5 1 sje SSS HH s EIS if D Values measured for each waveform updated every second according to the measurement type chosen with the variable function buttons Value will be color matched to its waveform Instantaneous values of signals at time t at the intersection of the cursor and the waveforms The cursor is moved along the time axis with the 32 buttons 40 Power Quality Analyzer Model 3945 B The measurement type is selected using one of the six variable function but tons All of these measurements are valid in 3U 3V 3A L1 L2 and L3 The waveforms are selected by pressing the x buttons 3U displays the three phase phase volt
40. S FOR VARIOUS PARAMETERS NOTE the following abbreviations used in this section NSHC number of samples per half cycle between two consecutive zeros NSC number of samples per cycle NSS number of samples in a second multiple of NSC V voltage phase to neutral U voltage phase to phase Half period Voltage and Current RMS Values Next Zero Vhalf i S V i 4 Single rms voltage half period i 1 phase n Zero 1 Next Zero 2 Uhalf i CNSHO C by U i Compound rms voltage half period i 1 phase n Zero 1 Next Zero Ahalf i CNSHO C A i 7 Rms current half period i 1 phase n Zero n sample 0 255 i phase 0 1 2 Power Quality Analyzer Model 3945 B 91 MIN MAX Values for Voltage and Current Vmax i max Vdem i Vmin 2 min Vdem i Umax i max Udem Umin 2min Udem i Amax i max Adem i Amin 7 min Adem Avg calculation on 1s Peak Values for Voltage and Current Updated on each waveform refresh Vpp i max V i n Vpm 7 min V n n 0 NSC 1 Upp 2 max U i n Upm i 2 min U 7 n n 0 NSC 1 App i max A i n Apm 7 min V i n n 0 NSC 1 Peak Factors for Current and Voltage Vc i max Vpeli au ib Peak factor single voltage i 1 phase 1 NSC lU Uc fi max Uppli Upmli Peak factor phase phase voltage i 1 phase 1 SUE ios wm Acr expli Apmfi 1 NSC 1 er UE Pea
41. When capture occurs four cycles are recorded for each input These include the trigger cycle the previous cycle to the trigger and the two cycles that follow the triggered cycle All active inputs will be captured Power Quality Analyzer Model 3945 B 53 5 4 1 Opening Previously Stored Transients The screen below can be accessed with the retrieve La button It displays a list transients previously stored in the memory 07 25 02 10 56 100 C3 7d SELECTION OF TRANSIENT TEST 05 05 07 02 14 31 41 TEST 04 05 07 02 14 31 41 TEST 03 05 07 02 14 31 21 TEST 02 05 07 02 14 31 04 TEST 01 05 07 02 14 31 04 gt B a Figure 5 16 i If the symbol appears as the first letter of the recording name e g EST 05 the data may be corrupted and should be checked carefully D The status bar at the top displays the memory filled by stored transients Name and transient number from 01 to 50 for each stored transient Transient recording time and date are displayed for each transient To select a transient press the buttons then select it with the button To delete a selected transient press the button then confirm it with the Nj button 5 4 2 Storing the Trigger The threshold T in percent defined as an envelope width over and under the last cycle of signal V or A input signal Its width W is calculated with the nominal m
42. adsheet program e g Microsoft Excel Alternatively select View After the download is complete a window will appear with a graph of the data and some viewing or channel options In that window you can select Save or Print From the Instrument tree view expand the sections under Recorded Data from the instrument then click on a line that describes the recorded data It will bring up a window with a graph of the data Power Quality Analyzer Model 3945 B Following are examples of each tab listed in the display window 6 8 1 Recordings E rue Tosh Window seip al L342 b ERW te m eo raaa A aroma Merson Nre Ode Stet Tee 3atod Resse Cl SERN 3T Protegach vive 302 Protograch yuat 30220 Prutsgaco x wzM 3a 34154 Am l t a ers 359 arent Test 34 6 Am teem 341 59 Am Tesei 341 53 Am Tant cuna Trees tnam wee tunis Trewert tus am Tune IS LE tweet supr tresn meum tren cura tren buna Tunes buna tren sugar tren Cuan wert amp 3 n uerment 6 corset ta Figure 6 15b The Recording window displays a list of recordings within the PowerPad These recordings can be selected and downloaded to a database Power Quality Analyzer Model 3945 B 83 6 8 2 Photographs psv rod Jae iora wary r loan orto Tan laco Cats n bem ment CG te ves tenent fish Wido Mey
43. advantages Long battery charge life for a limited volume and weight Possibility of quickly recharging your battery e Significantly reduced memory effect you can recharge your battery even if it is not fully discharged Respect for the environment no pollutant materials such as lead or cadmium in compliance with the applicable regulations After prolonged storage the battery may be completely discharged If so it must be completely recharged Your instrument may not function during part of this recharging operation Full recharging of a completely discharged battery may take several hours i In this case at least 5 charge discharge cycles will be necessary for your battery to recover 95 of its capacity To make the best possible use of your battery and extend its effective service life e Only use the charger supplied with your instrument Use of another charger may be dangerous Only charge your instrument at temperatures between 0 and 40 C e Comply with the conditions of use defined in the operating manual Comply with the storage conditions specified in the operating manual NiMH technology allows a limited number of charge discharge cycles depending significantly on The conditions of use e The charging conditions Please refer to S 7 for correct replacement of the battery Do not dispose of the battery pack with other solid waste Used batteries must be entrusted to a
44. ages of a three phase system 3V displays the three voltages of a three phase system 3A displays the three phase currents of a three phase 3 wire system i The neutral current is not a direct measurement but the resulting total of the 3 currents measured L1 L2orL3 displays the current and voltage on phase one two or three respectively IMPORTANT NOTE The choice of waveforms to be displayed in any dis play mode depends on the type of connection see S 4 1 5 Single phase No choice L1 Three phase 3 wire 3U 3V 3A L1 L2 L3 Two phase 2V 2A L1 L2 Three phase 4 wire 3U 3V 4A L1 L2 L3 5 1 2 RMS Voltage Measurement on 3 Phases 59 99Hz 07 25 02 10 26 100 0207 6 v 204 4v 204 9 v lt gt WT NZ NZ 18 VAJA A TE YV Vv Ve gtd of o t 5 0ms V1 2783 V2 144 V3 147 RMS THD CF max S882 Figure 5 2 Power Quality Analyzer Model 3945 B 41 5 1 3 RMS Current Measurement on the 3 Phases and Neutral Current on a Three Phase 4 Wire System 60 00Hz 07 25 02 10 26 M 10096 124 19414 18 54 17 14 RMS THD CF m RER LO Figure 5 3 5 1 4 Total Harmonic Distortion Measurement on One Phase 60 00Hz 07 25 02 10 26 M 10096 0 24 2 35 3
45. and completely SAF Pia Important information to acknowledge USB socket The CE marking guarantees conformity with European directives and with regulations covering EMC The trash can with a line through it means that in the European Union the product must undergo selective disposal for the recycling of electric and electronic material in compliance with Directive WEEE 2002 96 EC be Fe Power Quality Analyzer Model 3945 B 7 1 2 Definition of Measurement Categories CAT I For measurements on circuits not directly connected to the AC supply wall outlet such as protected secondaries signal level and limited energy circuits CAT Il For measurements performed on circuits directly connected to the electrical distribution system Examples are measurements on household appliances or portable tools CAT Ill Formeasurements performed in the building installation at the distribution level such as on hardwired equipment in fixed installation and circuit breakers CAT IV For measurements performed at the primary electrical supply lt 1000V such as on primary overcurrent protection devices ripple control units or meters 1 3 Receiving Your Shipment Make sure that the contents shipped are consistent with the packing list Notify your distributor of any missing items If the equipment appears to be damaged file a claim immediately with the carrier and notify your distributor at o
46. ation period PERIOD does not refer to a sampling period but rather to an integration period average Power Quality Analyzer Model 3945 B 57 Select a recording storage rate using the buttons NOTE The possible storage rates are 1 5 or 20 sec 1 2 5 10 or 15 min Enter the record name with the buttons which scroll through the alphabet and numbers Up to 7 characters may be entered Save the changes with the button NOTE The 3945 B will calculate the storage needs of the recording and if necessary will display the message Not enough memory If the recording is scheduled the PowerPad will display Recording on Standby If it doesn t accept any of the parameters it will instead move the cursor to the field it doesn t accept After changing the parameter press enter again Parameters not accepted could include the start time being before the present time If the period storage rate is more than 1 minute the start time must be a multiple of the storage rate e g if there is a 10 minute storage rate the recording start time could not be 4 09 but should instead be 4 00 or 4 10 The duration must also be a multiple of the storage rate The setup config number must have at least 1 parameter selected to record The recording name cannot be blank There must be enough memory TIP t may be wise to do a very short sample program to be sure everything is set correctly For example choose a 10 minute re
47. ations seseem 20 3 4 Environmental Specifications s 20 3 5 Safety Specifications issiria ieai iiia e 20 3 6 AC Current Probe Model SR193 see 21 3 AC Current Probe MN93 Probe sse 22 3 8 AC Current Probe MN193 Probe sse 23 3 9 AC Current Probe AmpFlex Probe sese 24 3 10 AC Current Probe MiniFlex Sensor sseee 25 3 11 AC Current Probe MR193 Probe essen 26 3 12 Three phase 5A Adapter Box ssssssssssssseeeee 28 3 12 1 Connecting to Secondary Current Transformer CT 29 3 12 2 Speocifications nre eere temm en 29 Power Quality Analyzer Model 3945 B 3 4 OPERATION eerrnrr nnne nennen nnn 30 4 1 Instrument Configuration Set up mode see 30 441 1 Date Tirmie ntu es 31 4 1 2 Contrast Brightness sssessee ee 31 4 3 2GOlOIS iun niente teimteadteite m neben 32 4 1 4 Calculation Parameters sssssssseeseeee 32 4 1 5 Electrical Hookup electrical network 33 4 1 6 Current Sensors sss 34 441 7 Baud Rale s cunesesn e Ree Re Rein 35 4 1 8 Recording co rere oer ng 36 41 92 AIAELp une eet adir a 37 4 1 10 Clear Memory eeeeeeneemeernenm nnnm 39 4 1 11 Line Frequency sssssssssssssseeeeneeeren
48. cations port and speed of the connection The model number serial number and firmware revision The battery charge level whether the battery is charging or discharging and the time on the clock e Ifa recording is in progress and when it is scheduled to end Ifa delayed recording is scheduled and when it is scheduled to begin Connection type Electrical Hookup Power Quality Analyzer Model 3945 B 71 If the indicated items are not shown on the screen select Restore Default Layout from the Window menu i If the battery charge is shown to be unknown plug the PowerPad into AC Power when it reaches 100 charge the display should again be able to show the battery charge 6 5 Common Functions The buttons described below appear on several DataView Setup Screens Re Read from Instrument Reads the current configuration of the PowerPad attached via the serial cable Save to File Saves the current configuration This file will reside on the computer s disk drive Saving different configuration setups can be useful for future functions and tests Load fromFile Retrieves a saved file from the computer s disk drive to be used in programming the PowerPad e OK Closes the dialog box and brings up the Control Panel Cancel Exit without saving configuration Apply Programs the PowerPad using the current settings without closing the window Help Opens the online Help 6 6 Configuring the Instru
49. clamp yP 6 near latching system Adjacent conductor Conductor in contact with lt 0 7 carrying an AC current the sensor 6 near latching system 3 11 AC Current Probe MR193 Probe 3945 B accuracy included e 1 the load Nominal Range 1000Aac 1400ADc max When installing probes face the arrow on the probe in the direction of Measurement Range 10A to 1000Aac 10A to 1300APEAK AC DC Probe Output Signal 1mV A i Currents 1Aac pc will be displayed as zero with this probe Maximum Cable Diameter One 1 6 42mm or two 0 98 25 4mm or two bus bars 1 96 x 0 19 50 x 5mm Safety EN 61010 2 032 Pollution Degree 2 300V CAT IV 600V CAT III Reference Conditions Ambient temperature 64 to 82 F 18 to 28 C Humidity 20 to 7596 of RH Battery voltage 9V 0 1V Position of conductor in the sensor Centered Magnetic field DC magnetic field AC External magnetic field None External electric field None Frequency lt 65Hz Type of signal measured Sinusoidal 26 Power Quality Analyzer Model 3945 B Accuracy 18 to 28 C 800 to 1000Aac Primary current 10 to 100A 100 to 800A 800 to 1300APEAK Accuracy 1 596 1ct lt 3 ict lt 5 ict Primary current 10 to 100A 100 to 1000A Phase angle lt 2 0 lt 15 Factors affecting accuracy of the output signal Conditions Range Error d Zero
50. cord for some time even if below the minimum battery charge value However the display may not come back on and will eventually stop saving data when the battery is too low All data recorded will be saved If in the Record Mode and the display does not come ON supply power to the PowerPad with the line cord and the display will come back ON when any button other than ON OFF is pressed mi NOTE When the 3945 B is stopped using the button a confirmation is requested if the equipment is in the process of recording 16 Power Quality Analyzer Model 3945 B CHAPTER 3 SPECIFICATIONS 3 1 Reference Conditions Parameter Reference Conditions Ambient temperature 73 F 5 F 23 C 3 C Humidity 45 Atmospheric pressure 25 4 Hg to 31 3 Hg 860 to 1060 hPa Phase voltage 230Vrms and 110Vrms 2 without DC Clamp current circuit input voltage 0 03V to 1Vrms without DC lt 0 5 AmpFlex current circuit input voltage 11 8mV to 118mVrms without DC lt 0 5 Frequency of electricity network 50 and 60Hz 0 1Hz V I phase shift 0 active power 90 reactive power Harmonics lt 0 1 The uncertainties given for power and energy measurements are maximum for Cos q 1 or Sin q 1 and are typical for the other phase shifts NOTE The symbol U will be used throughout this manual and in the instrument to refer to phase to phase voltage measurement The symbol V will
51. cording session called test 1 and evaluate results TIP Make sure to leave the PowerPad on until the recording is completed and check that there is AC power or enough time left on the battery 58 Power Quality Analyzer Model 3945 B 5 6 2 Selecting or Deleting a Record X 07 25 02 10 56 fj 100 SELECTION OF RECORDING TEST 07 25 02 17 58 gt In progress PUMP 07 18 02 17 58 gt 07 18 02 11 45 MOTORA 07 12 02 14 41 gt 07 12 02 16 40 P4 amp Ww Figure 5 20 i If the symbol appears as the first letter of the recording name e g EST the data may be corrupted and should be checked carefully The status bar at the top displays the memory occupied by previous records To Select a Recording Press the buttons to select the recording The current selection will appear in bold type Press the button to accept the selection To Delete a Recording Select the record to be deleted with the d buttons press on WI button and then press the button to delete the selection TIP t is possible to display a measurement being recorded by selecting the name of the recording To refresh the screen press the mode buttons caution loss of cursor position and zoom capability will occur The instrument automatically makes a correction if the programmed dates and times do not match the current date the current time or the set storage rate It
52. creen selected e Save it to disk There is a choice of a database to be viewed in DataView or a csv file to view in a spreadsheet program 6 7 2 Power Energy DN n var neemen foo we Mee 525 8 e 1 V et Cu Lewes Let Costs prammer M Ll 405363 p 9645 i Figure 6 13 The Power Energy window displays accumulated power and energy data Accumulated energy data can be started or stopped and the results can be down loaded to a database and viewed on the screen selected by phase Power Quality Analyzer Model 3945 B 81 i The data for all available phases are downloaded to a database or spreadsheet not just what is shown on the screen 6 7 3 Trend an ELO 00 lt lt lt tes PLIS ne te E Figure 6 14 Shows a real time trend of data from the PowerPad The data is an average of waveforms downloaded to the PC There might be 1 waveform per 2 6 seconds The data is summarized to 1 datapoint every 10 seconds Downloading Data to Database To download recorded data go to Instrument Recorded Data 1 Select the data you want to Download by clicking on the desired tab Recordings Photographs etc then clicking on the file name Select Save this may take few minutes 3 Type a name for the downloaded file and click OK It can be saved as 82 a database to be viewed in DataView or as a comma delimited file to be viewed in a spre
53. ea surement range R for a channel depending on the selected current sensor W TxR Example Using the SR193 probe and a 29 trigger level the width would be 1000A x 2 20A Therefore a deviation of 20A will cause a transient event to be cap tured 54 Power Quality Analyzer Model 3945 B The display below shows the transient selected in Fig 5 16 on the previous page a5 07 25 02 11 22 100 lt t 0 0ms I1 1 12 0 13 20 INN 2 gt 2 AD mm Figure 5 17 The screen displays 4 cycles of 256 points cycle with 1 cycle before the trigger and 3 cycles after D The waveforms to be displayed are selected by pressing on the buttons 3V displays the three phase voltages during the transient 4A displays the three phase currents and the neutral current during the transient L1 L2or L3 displays the current and voltage on phase 1 2 or 3 Instant values at an instant t in relation to the cursor can be displayed on the time scale with the QQ buttons 3 id Returns to the transient selection screen A and Changes the time scale screen display of 4 2 or 1 periods centered on the cursor which can be moved with the QQ buttons i All transients captured and stored can be downloaded to a PC with the Data View software see Chapter 6 Power Quality Analyzer Model 3945 B 55 5 5 Alarm Mode Press the ala
54. eads 12004 Cat 2140 25 Set of 3 Color coded 24 30 ft Leads 6500A AmpFlex Sensors Model 193 24 30 sse Cat 2140 26 Set of 3 Color coded 36 30 ft Leads 6500A AmpFlex Sensors Model 193 36 30 ssssssssssssseese Cat 2140 27 MR193 Probe black connector 1000A4c 1400AoDcC Cat 2140 28 Set of 3 Color coded MN193 30 ft Leads 5A 1004 Cat 2140 29 Set of 3 Color coded MR193 30 ft Leads 1000AAc 1400ADc Cat 2140 30 AC Current Probe Model MN93 BK 2004 sene Cat 2140 32 AC Current Probe Model SR193 BK 12004 sees Cat 2140 33 AmpFlex Sensor 24 Model 193 24 BK 65004 Cat 2140 34 AmpFlex Sensor 36 Model 193 36 BK 6500A Cat 2140 35 AC Current Probe Model MN193 BK 5A 1004 Cat 2140 36 MiniFlex Sensor 10 Model MA193 10 BK 10004 Cat 2140 48 Set of 4 Color coded 30 ft 9m voltage leads 600V CAT IV 10A Cat 2140 61 Replacement Lead Set of 4 Color coded 10 ft 3m with Color coded alligator clips red black blue amp white Cat 2140 64 115V Power Cord ssssssssseseeee nennen n nnne nhnn nenne nnns nn nnn Cat 5000 14 1 4 2 Third Party Accessories Converter USB to RS 232 DB9 MM available online at www startech com C
55. ent L1 L2 or L3 displays the voltage and current on phase 1 2 or 3 when selected Protocol U Signifies phase to phase voltage V Signifies phase to neutral voltage L1 L2 L3 Refer to the phases A B C or other Power Quality Analyzer Model 3945 B 15 2 4 Battery Charge Status 0 NOTE Line cord is plugged in Battery Charging a 25 plugg Battery capacity level relative to full charge of total capacity already charged between 0 and 99 Battery sign and are blinking a NOTE Line cord may or may not Battery Full 10076 be plugged in Battery sign and are fixed of total capacity is at 100 u 25 NOTE Line cord is not plugged in Battery Discharging Battery capacity level relative to full charge of the remaining capacity Battery sign and are fixed 0 NOTE Line cord is not plugged in Battery Empty Discharging e of total capacity reads 0 Battery sign and are fixed m 2 NOTE Line cord is plugged in New Battery Charging Fixed battery capacity level Question mark showing unknown capacity level Battery sign and are blinking m 9 NOTE Line cord is not plugged in New Battery Discharging Fixed battery capacity level Question mark showing unknown capacity level Battery sign and are fixed i WARNING The battery may fully discharge when recording for long periods of time while not connected to a power supply The PowerPad will con tinue to re
56. erage voltage for each of the 3 voltages Moving the cursor with the QQ buttons updates the values to reflect the new cursor position Selection of the 3 phases or each phase separately with the buttons Returns to the screen where the measurement to be displayed is selected Example when L1 is Selected 07 25 02 10 38 100 Vrms 2045 204 7 v 2049 o 220 0V gt 210 0V 200 0V mn gt 10 15 20 25 Figure 5 23 D MIN AVG and MAX values over the display period MAX value AVG value MIN value Returns to the Measurement Selection Screen see Fig 5 21 When the display period is different from the averaging integration period The average value is calculated with the sum of each integration period stored e The extreme values are the minimum and the maximum of an integration period during the display period selected with the cursor Power Quality Analyzer Model 3945 B 61 Graphic Display of Average Power After returning to the Measurement Selection Screen see Fig 5 21 use the button to view more recorded parameters if necessary Pressing the W button will bring up a screen similar to Fig 5 24 below 07 25 02 10 38 100
57. erties enebeeQe TE cOp Operator ote Custom prr ators et Oper Coro Adr ect Y State i Phone fen Fax Defaut enai Doete La Cancel eo Figure 6 20 The Session Properties dialog box allows you to specify the Operator Site and Custom parameters that are to be saved with recorded data These parameters are used when generating reports 88 Power Quality Analyzer Model 3945 B The Operator and Site tabs allow you to maintain lists of operators and sites saving you time when specifying parameters for reports On the left of the Operator and Site tabs is the list of previously defined Operators and Sites On the right of the Operator and Site tabs is the individual parameters that will be saved in an associated database Only a single set of operator and site fields are saved in the recording database The Custom tab contains a list of user defined parameters Along side each user defined parameter is a check box Items that are checked will be added to an associated database Only a single set of Custom parameters can be maintained unlike the Operator and Site lists The Custom tab allows you to specify any user defined parameters in addition to the comments field of the Site tab that are to be used in displaying a report i In addition to the pre designed report templates DataView allows you to totally configure reports to your needs Refer to the DataView HELP file on Templates to learn more about template
58. ese options are not e Vh 00 gt 00 Odd only selected all the harmonics I I i e Ah 00 f 00 Odd only odd and even will be EM Bol recorded Figure 4 5 Four recording set ups are available Choose recording configuration 1 2 3 or 4 with the y buttons Next move through the choices with the buttons and select the desired parameters with the buttons As you move through the parameters each choice in turn will be highlighted To activate the selected parameter for recording use the buttons The selected parameters will have a filled in and those not selected will have an unfilled There are two user defined parameters at the bottom of the window At first they will be listed as a question mark These parameters allow you to moni tor specific or a range of voltage current or power harmonics To activate these parameters Use the QQ buttons to select the parameter Next use the buttons to scroll through the available choices These are Uh Vh Ah and VAh Once the desired parameter is selected use the o to move to the first modifiable field for this parameter A value from 00 to 50 may be selected for this field using the buttons After selecting the desired harmonic order for the beginning value press the Q button to move to the upper value Use the same process to select the upper limit 36 Power Quality Analyzer Model 3945 B Press the Q button aga
59. ic i MIN MAX values are reset each time the cursor position is changed Power Quality Analyzer Model 3945 B 47 5 2 3 Power and Direction Flow Analysis Baa 59 98Hz 07 25 02 10 26 00 VAh03 63 122 G min 22 max 22 3 5 7 9 11 13 15 17 19 21 23 25 Figure 5 10 Harmonics on this screen are shown with either a positive or negative orientation Since the bar selected in this example is negative it indicates that it is a harmonic from load to source By convention positive harmonics are from supply to load and negative har monics are from load to supply g I The signs are only available in harmonic power measurement The example above shows a power harmonic display with the 3 harmonic high lighted by the cursor This harmonic is generated by the load i Harmonic direction is influenced by probe installation on the proper phase and arrow on probe facing the load 48 Power Quality Analyzer Model 3945 B 5 2 4 Harmonic Analysis in Expert Mode Press on the X47 button to select and then either the V or A variable function button V or A Example of a typical display J 59 98Hz 07 25 02 10 26 M 100 0 02 03 04 05 06 07 08 09 10 11 12 13 E 14 15 16 17 18 19 3L 20 21 22 L1 23 24 25 T L3 7 3 15 5 4 8 v v NN
60. ically Shortcuts for DataView and each instrument control panel selected during the installation process have been added to your desktop NOTE If you connected your instrument to the computer before installing the software and drivers you may need to use the Add Remove Hardware utility to remove the instrument driver before repeating the process Power Quality Analyzer Model 3945 B 69 6 3 Connecting the Model 3945 B to your Computer The Model 3945 B is supplied with an optically isolated serial interface cable required for connecting the instrument to the computer This cable Cat 2140 18 is equipped with a 9 pin connector on one end and an optical connector on the other end To connect the Model 3945 B to your computer 1 Connect the optical connector end of the cable to the serial port on the side panel of the Model 3945 B PowerPad 2 Connect the 9 pin connector end of the cable to an available serial port on your computer If your computer does not have a serial port you can obtain a serial port to USB converter from many computer stores You are now ready to use the DataView software with the PowerPad 6 4 Opening the Control Panel To open the Power Analyzer Control Panel Double click the PowerPad Icon that was created during installation located on the desktop The Connection window will appear see Figure 6 4 Connection Commurnscetons M E Cm Communication Rate 115200 v Cancri
61. ime 3 hrs 30 min approx Battery Life gt 8 hrs with display on 235 hrs with display off recording mode Operating Temperature 32 to 122 F 0 to 50 C Recharging Temperature 50 to 104 F 10 to 40 C Storage Temperature 4 to 122 F 20 to 50 C for lt 30 days NOTE The battery starts to charge when the power cord is connected When the battery is charged the instrument uses the current supplied by the power supply without drawing from the battery Power Quality Analyzer Model 3945 B 19 3 3 Mechanical Specifications Dimensions 9 5 x 7 0 x 2 0 240 x 180 x 55mm Weight 4 6 Ib 2 1kg Shock and Vibration per EN 61010 1 Tightness IP 50 per EN 60529 electrical IP2X for the terminals 3 4 Environmental Specifications Altitude Operating O to 2000 meters 6560 ft Non Operating O to 10 000 meters 32800 ft Temperature and RH SE oesenecute e Reference Range A Operating Range Ee ee ener Wer ee m 9 Storage Range 45 4 i Relative humidity in RH 4 32 68 79 95 122 Temperature in F 3 5 Safety Specifications Electrical Safety 600V CAT IV probe dependent Pollution Degree 2 EN 61010 31 2002 EN 61010 1 2001 EN 61010 2 032 1995 Electromagnetic Compatibility Immunity EN 61326 1 A1 1998 IEC 61000 4 30 2003 Emission EN 61326 1 A1 1998 20 Power Quality Analyzer Model 3945 B 3 6 AC Current Probe Model SR193 3945 8 accurac
62. in to move to the right to modify the last value needed to complete the definition Here you will choose whether to include all harmonics or only the odd harmonics Usethe red buttons to makethis selection The diamond preceding the Odd Only choice will appear filled in for selected and unfilled Ofor notselected Example of a user defined choice Vh 02 15 Odd Only In this user defined condition all odd voltage harmonics between the 2 and the 15 will be recorded Press the button when you have finished selecting all the parameters to be recorded to apply the new setup i The battery may fully discharge when recording for long periods of time while not connected to a power supply The PowerPad will continue to record for some time even if below the minimum battery charge value However the display may not come back on and will eventually stop saving data when the battery is too low All data recorded will be saved If in the Record Mode and the display does not come ON do not turn the instrument OFF Supply power to the PowerPad with the line cord and the display will come back ON when any button other than ON OFF is pressed 4 1 9 Alarm Highlight ALARM with the buttons then press the button The following screen will appear mu 07 25 02 10 26 M 100 O Hysteresis 10 1 2 3 4 5 6 f 8 9 e Figure 4 6 Power Quality Analyzer Model 3945 B 37 i A pr
63. ire an internet connection e DataView Version x xx xxxx Installs DataView onto the PC e Adobe Reader Links to the Adobe website to download the most recent version of Adobe Reader to the computer Adobe Reader is required for viewing PDF documents supplied with DataView that are accessible from the Help menu Power Quality Analyzer Model 3945 B 67 68 e DataView Updates Links to the online AEMC software updates to check for new software version releases Firmware Upgrades Links to the online AEMC firmware updates to check for new firmware version releases Documents Shows a list of instrument related documents that you can view Adobe Reader is required for viewing PDF documents supplied with DataView DataView Version x xx xxxx option should be selected by default Select the desired language and then click on Install The Installation Wizard window will appear Click Next To proceed accept the terms of the license agreement and click Next In the Customer Information window enter a Name and Company then click Next In the Setup Type window that appears select the Complete radio button option then click Next In the Select Features window that appears deselect the instrument s control panel that you do not want to install then click Next NOTE The PDF XChange option must be selected to be able to generate PDF reports from within DataView Dataview inisattnleld Wicard
64. ired The primary range can be set between 1 and 2999 Press the SJ button to apply the current sensor selection The Configuration menu will once again be displayed on the screen i In addition to the 4 current probe choices there is an adapter selection This selection allows the operator to use current probes that have a current output with PowerPad The ratio for these probes can be programmed with this selection The primary current can be programmed from 5 to 2999 Amps The secondary current can be set to 1 or 5 Amps Adjustment for the ratio is performed in the same way as described on the previous page for the MN probe 4 1 7 Baud Rate Highlight BAUD RATE with the X buttons then press the e button Choose from the baud rate values 2400 4800 7200 9600 19200 38400 57600 or 115200 with the 7X buttons Press the S button to apply the current sensor selection The Configuration menu will once again be displayed on the screen i For transfer of data between the PowerPad and PC the communication speeds must be identical on both sides Power Quality Analyzer Model 3945 B 35 4 1 8 Recording Highlight RECORDING with the gt X buttons then press the button The following screen will appear mm 07 25 02 10 26 100 SET UP 1 Hz Urms Uthd Ucf Vrms Vthd e Vcf Vunb PST Arms Athd Acf Aunb Akf ow VAR VA e PF DPF Tan CAFE i If th
65. ity Analyzer Model 3945 B 5 5 AlarmiMOde s i235 25 nett decent ta Eu 56 5 6 Recording Mode 5 rone here regere eis 57 5 6 1 Saving the Selected Parameters n 57 5 6 2 Selecting or Deleting a Record sseee 59 5 6 3 Selecting a Graphic Display for Recorded Measurements 60 5 7 Saving a Display isbreene E eee tei quee 63 5 8 Opening a Previously Saved Snapshot esee 64 5 9 Printlfig eet ee voie 65 MILI ge 65 6 DATAVIEW SOFTWARE ener nnn nnn 66 Gli Fealtlires s ie en e E Ee dee bs eei ted 66 6 2 Installing DataView ssssssssssssseeeeens 66 6 3 Connecting the Model 3945 B to your Computer 70 6 4 Opening the Control Panel sse 70 6 5 Common Furictions icone tbc ce ient aRt 72 6 6 Configuring the Instrument ssee me 72 6 0 1 Setups uina RADO ema 73 6 6 2 Instrument Display ssse 74 6 6 3 Alarm Conditions Configuration esses 75 6 6 4 Recordings Configuration eeeeeee 77 6 0 b Transients er teret eei te 78 6 6 6 Monitoring sse emen 79 6 6 7 Runningthe Test nere 80 6 7 Real time Windows s ninavssrininninn ce eene eene 80 6 7 1 Waveform Harmonic Bar and Harmonic Text 80 6 7 2 Power Energy iie ven ee 81 6 49 Trend ee epee eT 82 6 8 Do
66. k factor current i 1 phase 92 Power Quality Analyzer Model 3945 B 1 sec RMS Values for Voltage and Current Vrms m M Sii n Single rms voltage i 1 phase NSS mw Urms i b uli n Compound rms voltage i 1 phase Arms i M i n Rms current i 1 phase Voltage and Current Unbalance 20 V HVFIO a VF 1 a VF 2 Direct voltage complex notation a e 3 ye i VF 0 22 VF 1 a VF 2 Reverse voltage Vrms _ lArms ane Vrms4 Arms THD Calculation Vharm il n Y Uharm i n Saha in Vthdi 22 Uthdi Athdji 422 Vharm i 1 Uharm i L1 Aharm L1 i phase 0 1 2 n range 2 to 50 Power Quality Analyzer Model 3945 B 93 Calculation of Harmonic Bins Harmonic bins are calculated by FFT with 16 bit resolution 1024 samples on 4 cycles without windowing IEC 1000 4 7 From real and imaginary compo nents each bin ratio is calculated on each phase Vharm 3 51 Uharm 3 51 and Aharm 3 51 in proportion to the fundamental value and the phase angles Vph 3 51 Uph 3 51 and Aph 3 51 between each bin and the fundamental This calculation is accomplished using the following principle module in mod 100 angle in degree arctan 2 i k b ja ya b 1024 b gt F xsin se 51279 512 with 1024 kn d 2 F xcos rm 51273 512 1 1024 co _
67. l 1 NOTE This is valid for currents 4A and 3A and for single voltage 3V When the user chooses to look at a specific phase L1 L2 or L3 VA is the phase angle of V in relation to A Current or voltage unbalanced ratio Phasor diagram displays selection by voltage current or phase i It is advised to look at the phasor diagram prior to recording to check if the probes are installed correctly 11 12 and I3 should be shown when installed on a live circuit in a clockwise fashion The leading inductive or lagging capacitive effects of the load can be seen at this time and a snapshot of this screen may be appropriate Power Quality Analyzer Model 3945 B 45 5 2 Harmonics Mode hi Press the harmonic display mode button Ja Use the function buttons to select the type of harmonic analysis V Single phase voltage analysis A Current analysis VA Power and direction flow analysis U Phase to phase voltage analysis The and buttons allow the user to zoom in or out in increments of 2 5 10 20 50 and 100 5 2 1 Single Phase and Phase to Phase Voltage Analysis l 59 95Hz 07 25 02 10 26 100 Vh03 31 5 2 13 0 6 31 4 v 2 7 v 1 2v 003 113 094 lt gt 50 ED 2 Li L2 25 L3 Vv 1 3 5 7 9 11 13 15 17 19 21 23 25 v IPA Lwa TL u PO eo Figure 5 8
68. lay with graphic representation of system parameters and measurements Six 6 function buttons used to modify the display mode Four 4 function buttons which allow the user to ej M e Di Access the instrument setup parameters see 4 1 Take a snapshot of the current screen or access screens already stored in the memory Record associated waveform and power measurement data Print the measurement results on an external printer Get help on the current display functions in the language chosen by the user Power Quality Analyzer Model 3945 B ON OFF button Three 3 current inputs on the top of the instrument to enable the use of current sensors MN SR AmpFlex and MR probes Four 4 voltage inputs eo eo RS 232 bidirectional optically isolated output for transferring data to a PC bi directional or printing to a dedicated printer DPU 414 SEIKO AC Line power input Enter button Four 4 buttons that enable movement of the cursor browsing or the selec tion of data o 000 Buttons for directly accessing the 6 display modes at any time Transients set recording or view recorded transient displays waveforms associated with rapid changes in input Lh Harmonics View display of the harmonics in percent and value ratios for of voltage current and power for each harmonic through the 50 determination of harmonic current produced by non linear loads analysis of the problem
69. le for making pertinent choices 56 Power Quality Analyzer Model 3945 B 5 6 Recording Mode i After a recording is set the instrument will go into sleep mode no display to save the batteries The recording will start as programmed Press any button other than the ON OFF button to turn ON the display again Turning off the PowerPad clears the schedule even if turned on again the recording will not start This mode enables all the parameters previously configured in the setup mu mode to be recorded see S 4 1 8 Press the record display mode button The variable function buttons have the following functions in this mode E Creates a new recording Lap Opens a previous recording WU Deletes recording 5 6 1 Saving the Selected Parameters W 07 25 02 10 56 Minos NEW RECORDING CONFIGURATION CONFIG 1 START 07 25 02 10 56 END 07 25 02 10 57 PERIOD 1 min NAME TEST Recording P4 B w Figure 5 19 Recording status bar displays remaining memory capacity 2 Parameters press the QQ buttons to select the parameters and the but tons to modify them An underline will appear under the selected parameter Select the configuration number to be modified with the x buttons CONFIG 1 2 3 or 4 Select the dates with the buttons NOTE The dates are adjusted according to the chosen recording inte gr
70. le in the jaws 0 596 to 50 60Hz Adjacent conductor carrying a Conductor in contact with 60Hz AC current the sensor SISMAA DC current distortion Seer ee on me lt 5 nominal AC current Crest factor distortion lt 3 and peak current 200A lt 3 1000A x1 Overload Frequency derating beyond 1kHz in kHz 22 Power Quality Analyzer Model 3945 B 3 8 i AC Current Probe MN193 Probe 3945 B accuracy included When installing probes face the arrow on the probe in the direction of the load The 5A range of the MN193 is designed to work with secondary current transform ers Best accuracy is available when entering the transformer ratio e g 1000 5A When used to measure 5A direct the resolution will be limited to 0 1A max Nominal Range 5A and 100Aac Measurement Range 5A 0 005A to 6AAc max 1A to 1200A with ratio 1000 5 selected 100A 0 1A to 120AAC max i Currents Primary x 5 Secondary x 1000 or 250mA on the 5A range and 0 2A on the 100A range will be displayed as zero with this probe Power calculations will also be zeroed when the current is zeroed Probe Output Signal 5A 200mV Aac 100A 10mV AAc Maximum Clamping Diameter 0 8 20mm Safety NF EN 61010 2 032 Pollution Degree 2 300V CAT IV 600V CAT III Reference Conditions Ambient temperature 73 F 23 C 5 F 3 C Humidity 20 to 75 of RH Frequency 48 to 65Hz Distortion factor
71. lex 193 24 Cat 2130 77 Includes the PowerPad Model 3945 B set of three 24 AmpFlex 193 24 6500A sensors four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMH battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual PowerPad Model 3945 B w 36 AmpFlex 193 36 Cat 2130 78 Includes the PowerPad Model 3945 B set of three 36 AmpFlex 193 36 6500A sensors four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMH battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual PowerPad Model 3945 B w MR193 sssssees Cat 2130 79 Includes the PowerPad Model 3945 B set of three color coded MR193 1000A4c 1400Apc probes four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F opti cally coupled serial cable NiMh battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual PowerPad Model 3945 B w MN193 ssssseeee Cat 2130 80 Includes the PowerPad Model 3945 B set of three color coded MN193 6A 120A probes four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMh battery US 120V power cord DataView software
72. ment The Configure dialog box lets you configure every aspect of the Model 3945 B PowerPad Each field is identical to the programmable features available from the instrument s front panel itself Several of the functions are configured by typing the appropriate value in the field provided Others are configured by clicking on the appropriate radio button or Icon such as selecting the current probe To configure the instrument go to Instrument Configure or select Configura tion from the Instrument Tree 72 Power Quality Analyzer Model 3945 B 6 6 1 Setup i LT NM Setup instrument Display Alarm Conditions Recordings Transients Monitoring Reactive values var calculation Nominal Frequency Set Instrument s Clock With Harmonics S0 Hz E Set 5 Without Harmonics 60 Hz Current Sensor Connection Type a O t oH MN93Probe SR193 Probe A193 Single Phase Split Phase AmpFlex tt Og cj MR193 Probe ADA MN193 Probe 3 Phase Adapter 3 Wire Voltage Transformer Ratio The Voltage Transformer VT Ratio setup is for real time data only It is not sent to the instrument and not applied to recorded data downloaded from the instrument E Setup Ratio Primary Voltage 1 v Secondary Nominal Voltage 1 Re ReadfromInstrument l Save To File Figure 6 6 e Reactive Values Calculation With or without harmonics Applies to VAR cal c
73. n be saved by pressing Save to File and recalled later by pressing Load From File 1 2 Check the configuration you wish to set up 1 2 3 or 4 Check all the Data to Record parameters you wish to record by clicking on each one Configure the harmonic values to be recorded if desired It is also possible to record up to 2 of 4 types of harmonic data voltage Vh current Ah phase to phase voltage Uh and power VAh For each selected harmonic data type you can choose a range of harmonics to record from the 1st to 50th You can further limit that range to only include odd numbers by checking the box for Odd Harmonics Only recording begins If it is powered off during the recording a partial record ing will usually still exist but with the first letter of its name changed to The start and end times requested for the recording might be adjusted by the PowerPad to be in even multiples of the averaging period For instance if an integration period of 10 minutes was requested and the start time was 9 03 the recording might not actually begin until 9 10 Power Quality Analyzer Model 3945 B 77 6 6 5 Transients The Transients window allows you to set up the criteria for capturing transients Con teint T0000 eee ha Setup Instrument Display Alarm Conditions Recordings Transients Monitoring Search for New Transients V Schedule Transient Search Time to Begin Search Time
74. nce giving a detailed description of any damage Save the damaged packing container to substantiate your claim Do not use equipment which is damaged or appears to be damaged i After receiving your PowerPad charge and discharge the instrument one or two cycles to ensure the proper level display of the battery indicator 1 4 Ordering Information PowerPad Model 3945 B sss Cat 2130 74 Includes four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMH battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual PowerPad Model 3945 B w MN93 seee Cat 2130 75 Includes the PowerPad Model 3945 B set of three MN93 240A probes four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMH battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual PowerPad Model 3945 B w SR193 sss Cat 2130 76 Includes the PowerPad Model 3945 B set of three SR193 1200A probes four 10 ft color coded voltage leads four color coded alligator clips RS 232 DB9F optically coupled serial cable NiMH battery US 120V power cord DataView software carrying bag soft carrying pouch and user manual 8 Power Quality Analyzer Model 3945 B PowerPad Model 3945 B w 24 AmpF
75. nd the AC power connected Itis not necessary to leave the mtrument connected to the PC arna the test When the nszument is connected t9 the PC you can use the Data Monitoring screen to see te rents Sa o me Came Figure 6 11 Configure and start an EN50160 test of line quality It is recommended that a brief test of 10 minutes or shorter be done first to verify the connections and param eters of the test are correct Only then should the 1 week test be done If neither of the voltage profiles are chosen a field appears to enter the nominal voltage The frequency is not asked for since it will be asked for when the test result is downloaded Follow the instructions in the dialog box to set up and run this special test Press the Help button for further instructions Power Quality Analyzer Model 3945 B 79 6 6 7 Running the Test After configuring the instrument press OK The status window will display if a recording is ready to start Select Yes to schedule a recording select No to bring you back to the Configure dialog box 6 7 Real time Windows When your setup is completed you can display different views on the screen of real time data and waveforms 6 7 1 60 Waveform Harmonic Bar and Harmonic Text Figure 6 12a Figure 6 12b Power Quality Analyzer Model 3945 B Figure 6 12c On each screen you can Select the type of data to see Stop the update with the Hold function Print the s
76. ogrammed alarm must be set to ON to function properly general activation or deactivation of alarms is generated in the alarm mode Modifying one or several characteristics of an alarm set to ON auto matically switches it to OFF Hysteresis Percentage 1 2 5 or 10 A hysteresis value is set to prevent multiple recordings of an event that goes above the threshold and a certain percentage below it at times Example Alarm threshold is 100 Volts or higher hysteresis is 1 When voltage goes up to 100V the alarm condition starts when it next goes back down to 99V the alarm condition stops Alarm activation ON or OFF Alarm number 1 to 10 eq There are 24 parameters to choose from for alarm triggering They are Vrms Urms Arms Vpst Vcf Ucf Acf Vumb Aumb Hz Akf Vthd Uthd Athd W VAR VA DPF PF Tan Vh Uh Ah and VAh Threshold value for triggering an alarm Minimum duration from beginning threshold detection to store the alarm from 0 01 seconds to 99 minutes Less than lt or greater than gt eo eoo Capture 3L capture all phases 1 2 or 3 depending on hookup selection N neutral capture X total power capture X 3 average value of 3 phase capture 2 2 for 2 phase 0 50 harmonic order available for harmonic event capture Alarm Programming Choose the parameters associated with an alarm from the available parame ters phases survey threshold val
77. onverter Ethernet to RS 232 Model ESP901 available online at www bb elec com Order Accessories and Replacement Parts Directly Online DataView Software Updates Available for Download Online 10 Power Quality Analyzer Model 3945 B CHAPTER 2 PRODUCT FEATURES 2 1 Description The PowerPad Model 3945 B is a three phase power quality analyzer that is easy to use compact and shock resistant It is intended for technicians and engi neers to measure and carry out diagnostic work and power quality work on one two or three phase low voltage networks Users are able to obtain instant waveforms of an electrical network s principal char acteristics and also monitor their variation over a period of time The multi tasking measurement system simultaneously handles all the measurement functions and waveform display of the various magnitudes detection continuous recordings and their display without any constraints Features Measurement of TRMS voltages up to 480V phase to neutral or 830V phase to phase for two three or four wire systems e Measurement of TRMS currents up to 6500Arms e Measurement of DC voltage up to 850V e Measurement of DC current up to 1400ADc with MR193 probe Frequency measurement 41 to 70Hz systems Calculation of neutral current for WYE configurations Calculation of Crest Factors for current and voltage Calculation of the K Factor for transformers Calculation of short term flicker
78. ows 7 64 bit 80MB of hard disk space 200MB recommended CD ROM drive Windows is a registered trademark of Microsoft Corporation in the United States and other countries 66 Power Quality Analyzer Model 3945 B NOTE When installing the user must have Administrative access rights during the installation The users access rights can be changed after the installation is complete DataView must be reinstalled for each user in a multi user system 1 Insert the DataView CD into your CD ROM drive If auto run is enabled the Setup program will start automatically If auto run is not enabled select Run from the Start menu and type in D SETUP if your CD ROM drive is drive D If this is not the case substitute the appropriate drive letter IN NOTE If installing onto a Vista based computer the User Account Control dialog box will be displayed Select the Allow option to proceed 2 ASet up window similar to the one below will appear Asmuo CE iaa E spares cw Select an ognon bom the tet below Optore Deicpuon LTD onus Cer ren d Dae to tes ccn Adobe Reader This verson of Dotal ien suppots the Ioloveng nerurerts O warme Update Favwoare Liporsder User Mane tometas Mol Energy Logger IM ext ad Ji Model 230 Powers Claro Moxdesd 407 anii 607 Sentinel Date Logger Serge Logger It OTR Model 0510 Figure 6 1 There are several different options to choose from Some options requ
79. pFlex amp MiniFlex Arms Adem 10A to 6500A FIO UA 40 5 1A DC current MR193 1A to 1400A n UE 1 1A Peak Current App Apm 0 to 1 7 x Inom ees NA 1 1A 0 1 Aif I lt 1000 A Peak Current AmpFlex amp MiniFlex 10 to 9190A 1 Pes gt 1000A 1 1A Crest Factor Vcf Ucf Acf 1 00 to 9 99 0 01 1 2cts Real Power W OW to 9999kW 4 digits Clamp on and AmpFlex Cos 20 8 10000cts 1 1ct Clamp on Cos 0 2 to lt 0 8 x1 596 10cts AmpFlex amp MiniFlex Cos o 0 5 to lt 0 8 1 5 10cts Reactive Power VAR OW to 9999kW 4 digits Clamp on and AmpFlex Sin 920 5 10000cts 1 1ct Clamp on Cos 0 2 to lt 0 8 x1 596 10cts AmpFlex amp MiniFlex Cos o 0 5 to lt 0 8 1 5 10cts Apparent Power VA OVA to 9999kVA 4 digits 1 1ct Power Factor PF DPF 1 000 to 1 000 0 001 Cos 9 2 0 5 x1 596 1c Cos 0 2 to lt 0 5 1 5 1c Tangent Tan for VA gt 50VA 0 001 Tan o lt 10 1 ong BEIDE 0 01 Tan o 10 Hono Active Energy Wh OWh to 9999MWh 4 digits Clamp on and AmpFlex Cos gt 0 8 10000cts 1 1ct Clamp on Cos q0 2t0 0 8 Cos x1 596 1ct AmpFlex amp MiniFlex 9 0 5 to lt 0 8 1 5 1ct Reactive Energy VARh OVARh to 9999MVARh 4 digits Clamp on Sin gt 0 5 1 5 1ct Sin 0 2 to lt 0 5 2 5 1ct Reactive Energy VARh OVARh to 9999MVARh 4 digits Sin 9 2 0 5 1 596 1ct AmpFlex amp MiniFlex Sin 90 2 to lt 0 5 32 5 dct
80. r Tan i tan o i i 1 phase tangent NSS 1 2 VF ll 4r Elk ii Cosine angle between voltage fundamental and i 1 phase current cosol NSS 1 r mi Se PF 0 PF 1 PF 2 PF 3 d Total power factor DPF 0 DPF 1 DPF 2 DPF 3 0 1 l PI Total shift factor Tan 0 Tan 1 Tan 2 Tan 3 ADIO Ton Taal Total tangent 3 Various Types of Energy whlolti gt we Active energy consumed phase i 1 se VAL Tm 3600 VARbL O Li gt aaa VAhIOJLi Apparent energy consumed phase i 1 for VAR i 20 Reactive inductive energy consumed phase i 1 VARhCIOJL cR for VAR i lt 0 Reactive capacitive energy consumed phase i 1 mx 3600 Total active energy consumed Wh 0 3 Wh O 0 Wh 0 1 Wh 0 2 Total apparent energy consumed VAh 0 3 VAh O 0 VAh 0 1 VAh O 2 96 Power Quality Analyzer Model 3945 B Total reactive capacitive energy consumed VARhC O 3 VARhC O 0 VARhC 0 1 VARhC O 2 Total reactive inductive energy consumed VARhL 0 3 VARhL 0 0 VARhL 0 1 VARhL 0 2 Wii whl Hl 2 50 Active energy generated phase i vant e VARLIII i Y VARhC I1 i gt n Active energy generated phase i for VAR i lt 0 Reactive inductive energy generated phase i 1 for VAR i 20 Reactive capacitive energy generated phase i 1 Total active energy consumed Wh 1 3
81. rent Probe MiniFlex Sensor 3945 8 accuracy included I Nominal Range 1000AAc Measurement Range 10A to 1000AAc max Probe Output Signal 47 uVac 1000Aac at 60Hz NOTE Output is proportional to the amplitude and frequency of the measured current Sensor Length 10 250mm 2 75 70mm When installing probes face the arrow on the probe in the direction of the load 1 Currents below 10A will be displayed as zero with this probe Safety EN 61010 1 and 2 Pollution Degree 2 600V CAT IV 1000V CAT III Reference Conditions Ambient temperature 64 to 82 F 18 to 28 C Humidity 20 to 7596 of RH Position of conductor in the sensor Centered Continuous magnetic field 40A m earth s magnetic field External alternative magnetic field None present External electric field Frequency None present 10 to 100Hz Type of signal measured Sinusoidal Power Quality Analyzer Model 3945 B 25 Accuracy Primary current AAC 20 to 100A 100 to 1000A Accuracy 96 of the output signal lt 3 lt 2 Phase shift 90 0 5 Factors affecting accuracy of the output signal Conditions Range Error Temperature 4 to 140 F 20 to 60 C 0 2 per 10 C Relative humidity 10 to 90 RH 0 5 Frequency response 10Hz to 20kHz 0 5 Position of conductor Anvibpalibh lt 2 in
82. ress the button The following screen will appear mu 07 25 02 10 26 100 CRE 200A MN clamp aor SR clamp AmpFlex clum MR clamp iha Adapter 1000 5A Figure 4 4 D Current transducer ratio QQ moves the cursor left or right to select which digit will be edited increases or decreases the value at the highlighted position Secondary current value Nominal value of primary current from 5 to 2999A Choose the sensor type with the buttons The MN Clamp also requires a range selection to match your probe The range choices are 200 100 and 5 Amps The 200 Amp Range is used for the MN93 Probe and the 100 or 5 Amp Range is used for the MN193 Probe To select the proper range first ensure that the MN Probe choice is high lighted using the buttons Next press the 3 button to highlight the range then press either of the 34 Power Quality Analyzer Model 3945 B b buttons to select the desired measurement range of 200 100 or 5 Amps If the 5 Amp range is selected a choice for programming the ratio is offered To change the ratio press the 3 button to highlight the secondary value Pressing either of the buttons will toggle this value to either 1 or 5 After making this selection press the 3 button to adjust the primary value Each press of the 30 buttons will move the highlight one digit to the left or right accordingly Use the buttons to change each digit position as des
83. rm display mode button A Figure 5 18 presents the various alarms stored NOTE The threshold values must first have been programmed in the m mode Also the alarm event or alarm capture must end before an alarm will be dis played Q Starts alarm capture 5 Stops alarm capture YY Deletes all stored alarms 9 A mz 7 07 25 02 11 27 fy 100 lt 07 25 02 11 27 L1 Vthd 23 1 2s 11 28 L1 Vrms OV 1824 8 L1 Vthd 34 3 1s A L1 Vthd 35 0 1s 3L L1 Arms 1A 1s5 70S L1 L2 Arms 1A 183 0S L2 11 29 L1 Arms 0A 15975S L3 L2 Arms 0A 1s974s L3 Arms 0A 1s8 70S L1 Vrms 109V 38377008 L1 Vthd 35 1 3s i 2 2 9 Oc i WU Figure 5 18 Alarm memory status bar indicates available alarm storage memory Alarm target Measurement parameter monitored Maximum or minimum amplitude detected o060Gg0 Alarm duration Use the buttons to select an alarm Use the 30 buttons to display alarms within a period of time NOTE All the alarms recorded can be downloaded to a PC with the DataView software see Chapter 6 Up to 4096 alarms can be captured i The Alarm values for PF DPF Tan o W and VAR are absolute values NOTE The type of connection selected in the mm mode has no influence on the possibilities of choices target and monitored parameter The user is responsib
84. s Power Quality Analyzer Model 3945 B 89 CHAPTER 7 MAINTENANCE Use only factory specified replacement parts AEMC will not be held responsible for any accident incident or malfunction following a repair done other than by its service center or by an approved repair center e After receiving your PowerPad shipment charge and discharge the instru I ment one or two cycles to ensure the proper level display of the battery indicator 7 1 Recharging and Changing the Battery The battery is automatically charged when the unit is connected to AC power i The instrument will not recharge if the message Instrument will soon turn OFF is displayed on the screen The Enter button must be pressed or the instrument must be turned OFF before recharging will start WARNING When changing the battery disconnect all instrument inputs and turn the equipment off There must be a delay of at least one minute without the battery being connected Do not expose the battery to heat exceeding 212 F 100 C Do not short circuit the battery terminals 7 2 Cleaning Disconnect the instrument from any source of electricity Use a soft cloth lightly dampened with soapy water Wipe with a damp cloth and then dry with a dry cloth Do not splash water directly on the clamp Donotuse alcohol solvents or hydrocarbons 90 Power Quality Analyzer Model 3945 B APPENDIX A MATHEMATICAL FORMULA
85. s caused by harmonics according to their order heating of neutrals conductors motors etc Waveforms View displays voltage and current waveforms or vector representation Phasor diagram identification of signal distortion signatures display of amplitude and phase unbalance for voltage and current checking connections for correct phase order WwW Power Energy view or start energy monitoring display of power levels and the associated parameters power factor displacement and tangent energy monitoring four quadrant measurement to discern produced consumed ac tive energies and inductive capacitive reactive energies Recording set recording or view recorded data time related representation as bar charts or line graphs of aver age power levels or of the average value of any parameter Line graphs of each selected parameter up to 22 vs time line voltage stability check management of power consumed and generated monitoring of harmonic variations Power Quality Analyzer Model 3945 B 13 A Alarm Events provides a list of the alarms recorded according to the thresholds programmed during configuration logging of interruption with half cycle resolution determination of energy consumption exceedences stores value duration date time and set point for up to 4096 events 2 3 Display i 49 99Hz 07 25 02 10 26 100 0202 5 v 2202 0 v 202 7 v
86. selection button Left selection button Warning Double or reinforced insulation Danger Risk of electric shock Transients mode Harmonics mode Harmonic analysis Waveforms mode Power Energy mode Recording mode Alarm mode Set Up mode Snapshot capture Direct print Help Tabular display of measurements Phasor diagram display 100 Power Quality Analyzer Model 3945 B L 25 Battery charging or discharging l 100 Battery full 0 Battery empty discharging l New battery discharging Power On Off Validate the setting Power parameters Power factor Starts energy accumulation Stops current activity Resets counter to zero Displays each type of energy real reactive apparent Starts capture or recording search Displays a captured transient Deletes a captured transient Returns to the transient selection screen Zoom In Zoom out Saving 3B E vim Eo Q s 4p Opening a saved display Power Quality Analyzer Model 3945 B 101 Repair and Calibration To ensure that your instrument meets factory specifications we recommend that it be scheduled back to our factory Service Center at one year intervals for recalibration or as required by other standards or internal procedures For instrument repair and calibration You must contac
87. t our Service Center for a Customer Service Authorization Number CSA This will ensure that when your instrument arrives it will be tracked and processed promptly Please write the CSA on the outside of the shipping container If the instrument is returned for calibration we need to know if you want a standard calibration or a calibration traceable to N I S T Includes calibration certificate plus recorded calibration data Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360 Fax 603 742 2346 or 603 749 6309 E mail repair aemc com Or contact your authorized distributor Costs for repair standard calibration and calibration traceable to N I S T are available NOTE You must obtain a CSA before returning any instrument Technical and Sales Assistance If you are experiencing any technical problems or require any assistance with the proper operation or application of your instrument please call mail fax or e mail our technical support team Chauvin Arnoux Inc d b a AEMC Instruments 200 Foxborough Boulevard Foxborough MA 02035 USA Phone 800 343 1391 508 698 2115 Fax 508 698 2118 E mail techsupport aemc com www aemc com NOTE Do not ship Instruments to our Foxborough MA address Ship To Chauvin Arnoux Inc d b a AEMC Instruments 102 Power Quality Analyzer Model 3945 B Limited Warrant
88. this button to obtain help for the current display mode To exit the Help mode press the button once again Power Quality Analyzer Model 3945 B 65 CHAPTER 6 DATAVIEW SOFTWARE 6 1 Features DataView has a simple easy to use interface for configuring and running tests with the PowerPad as well as printing reports of the test results There are many features that are available through this program A few of the most popular are listed below e Configures and displays all functions of the PowerPad e Runs tests from your computer with a simple click and execute process e Views and captures data in real time e Retrieves data from the instrument s memory e Plots graphs of recorded information that has been downloaded e Presents reports including your analysis in the comments section e Stores a library of setups for different applications e Provides consistency in testing regardless of who performs the test i For a Tutorial on how to use DataView with the PowerPad visit our Power Quality category in our Tech Info section on our website WWW aemc com 6 2 Installing DataView DO NOT CONNECT THE INSTRUMENT TO THE PC BEFORE INSTALLING THE SOFTWARE AND DRIVERS pie Minimum Computer Requirements Windows XP Windows Vista amp Windows 7 32 64 bit 256MB of RAM for Windows XP 1GB of RAM for Windows Vista amp Windows 7 32 bit 2GB or RAM for Windows Vista amp Wind
89. to End Search 6 30 2010 v 9 52 00 AM 6 30 2010 12 53 00PM Transients free 11 sh ill TM Transients free if all deleted 50 SAMPLE Maximum number of Transients to find 1 Threshold of 480 V Threshold of of Voltage Difference probe s nominal maximum of Current Difference 1 4 8 V 1 0 01A Figure 6 10 Type a name for the session up to seven characters Select the date and time to begin and end the search for transients 3 Select the percent deviation for voltage and current transients The choices available from the drop down menu are 1 2 5 10 20 50 and 100 of the full scale range of measurement See 5 4 for detailed information on these values 4 Select the maximum number of transients to capture from 1 to 50 78 Power Quality Analyzer Model 3945 B 6 6 6 Monitoring The EN50160 standard defines limiting values and permissible variations of the voltage quality for the European Community It defines which parameters are relevant and how are they measured Continuous or random sampling control of the voltage quality provides the supplier of electric energy with a reliable basis when dealing with network problems and it contributes to quality assurance The purpose of the EN50160 standard Voltage characteristics of electricity sup plied by public distribution systems is to specify the characteristics of the supply voltage with regard
90. ue and minimum duration filtering can be pro grammed i The programmed hysteresis is common to all alarms Highlight Alarm with the X buttons then press the button Select the modifiable field using the QQ buttons Activate or adjust the threshold values using the buttons The field to be modified is shown in bold Press the button when you have finished setting all the alarm parameters i When the alarm is OFF the parameters previously used are stored in memory and reappear if the alarm is selected again 38 Power Quality Analyzer Model 3945 B 4 1 10 Clear Memory When CLEAR MEMORY is selected the following question is displayed Are you sure you want to delete all the data Yes No Choose the answer with the QQ buttons Press the X button to apply your choice The Configuration menu will once again be displayed on the screen i When data is deleted all detected alarms screen snapshots captured tran sient states and all recordings are deleted The configuration will return to the default setting and the instrument will automatically turn OFF once the data has been deleted 4 1 11 Line Frequency Rated frequency of network 50 or 60Hz i This parameter determines the correction coefficients used for calculating power and energy Highlight Line Frequency with the buttons then press the button Choose the line frequency using the Q
91. ulation e Nominal Frequency 50 or 60Hz This parameter determines the correction coefficients used for calculating power and energy e Current Sensor MN93 MN193 SR193 MR193 A193 AmpFlex MiniFlex or ADA Adapter used to accept probes with other ratios or a direct 1 Amp or 5 Amp input e Connection Type Single Phase Two phase Three phase 3 wire or Three phase 4 wire e Set Instrument s Clock Programs the computer s time and date into the configuration of the PowerPad e Voltage Transformer Ratio Sets the scale for voltage measurement in cases where measurements are on the secondary side of a transformer and the pri mary value needs to be displayed Power Quality Analyzer Model 3945 B 73 6 6 2 Instrument Display The PowerPad display window allows you to customize the display colors clocks language and contrast Cone te incnment 00000 ee Setup Instrument Display Alarm Conditions Recordings Transients Monitoring Instrument Display Instrument s Display Language D Clock Display 24 Hour D Date Display DD MM YYYY Clock Display AM PM Date Display MM DD YYYY Display Brightness Display Contrast Instrument s Display Trace Colors Bill Magenta 9 Voltage L1 CurrentLi Wired E Dark Brown Voltage L2 Current L2 Willi ight Brown E Orange Voltage L3 Current L3 Yellow W Dark Green Current N W Light Green Wilsu Ml Dark Blue
92. ut tons to modify the trigger threshold oO S Choose a name for the session and the number of transients to be captured with the arrow buttons 30 Selection of the character place 7 characters max Selection of the alphanumeric value NJ Press the Enter button to apply the conditions and to activate transient capture 52 Power Quality Analyzer Model 3945 B The table below lists the capture threshold levels based on the probe in use for the current channels and voltage at the different percent selections Thresholds 100 50 20 10 5 2 1 MN93 200A 100A 40A 20A 10A 4A 2A MN193 100A 100A 50A 20A 10A 5A 2A 1A MN193 5A primary x 5 secondary x percent x 100 SR193 1000A 500A 200A 100A 50A 20A 10A AmpFlex 193 2900A 1400A 580A 290A 140A 58A 29A MiniFlex 2900A 1400A 580A 290A 140A 58A 29A MR193 1000A 500A 200A 100A 50A 20A 10A 2999A ratio adapter 3000A 1500A 600A 300A 150A 60A 30A 1A ratio adapter 1A 0 5A 0 2A 0 1A 0 05A 0 02A 0 01A Voltage 480V 240V 96V 48V 24V 9 6V 4 8V Transients are detected by comparing all 256 samples on the current cycle with their counterparts from the previous cycle for each active input channel Should any one sample deviate from its counterpart by the selected percentage value in the set up this will be considered a transient and the data will be captured
93. ute over 1 hour 20 seconds over 20 minutes 5 seconds over 5 minutes 1 second over 1 minute NOTE The minimum integration period is limited by the recording period The recording integration period of 2 minutes is a special case In this case only the fol lowing display integration periods are possible 10 minutes 1 hour and 2 hours 5 7 Saving a Display This button allows 12 snapshots to be saved for future recall and evaluation Press the button for about 3s to capture the current display The icon is displayed in the top left corner as soon as the operation is successful e This icon is replaced by X if there is no space left in the memory to record the display i These screens can be downloaded to a computer using the DataView software Power Quality Analyzer Model 3945 B 63 5 8 Opening a Previously Saved Snapshot Ashort press about 1s on the button gives access to the menu of snapshots that have been saved The small icon to the left of each snapshot date and time tells you what type of data was stored ee 07 25 02 10 26 100 d 07 17 02 11 27 dE 07 17 02 12 57 07717102 11 28 J p 0717 02 12 08 07 1702 12 20 d 07 17 02 12 30 d 07 17 02 12 48 Co Figure 5 26 WZ Use the XX buttons to select the snapshot To display the snapshot press the L button then the enter Sg button After re
94. ven if the individual alarm enable box is checked Make sure this is not checked if you want to record alarms Alarm Conditions e Enabled When check box is checked alarm is enabled e Harmonic Number For alarm parameters Vh Ah Uh and VAh selects which harmonic number is being used as an alarm condition For exam ple Vh with a harmonic number of 2 will only look at Voltage phase to neutral harmonic 2 Power Quality Analyzer Model 3945 B 75 Capture Parameter The Alarm will be triggered based on the value of the selected parameter Choices include None no alarm Vrms voltage root mean squared Vunb voltage unbalance Urms voltage phase minus phase root Aunb current unbalance mean squared Hz frequency Arms current root mean squared Akf current K factor VPST voltage short term flicker Vthd voltage total harmonic distortion Vcf voltage crest factor Uthd voltage phase minus phase total Ucf voltage phase minus phase harmonic distortion crest factor Athd current total harmonic distortion Acf current crest factor W active power e Phases Some alarm conditions have a phase selection W VAR and VA have a choice of 3L or each individual phase or Sum which is the sum of phases DPF PF and TAN have the choice of 3L or each individual phase or Mean which is the mean of phases Threshold The value that must be reached to start an alarm For gt alarms the value or higher must be reached for
95. viewing the snapshot press the enter NJ button again to return to the list of saved snapshots To delete a selected snapshot press the VS button then press the enter Sg button i The various storage spaces of the Model 3945 B are of a fixed size and are completely independent There are four memory spaces available alarms snapshot transients and recordings 64 Power Quality Analyzer Model 3945 B 5 9 Printing The print button allows a screen to be printed directly to a dedicated printer con nected to the serial port 59 99Hz 07 25 02 10 26 M 100 0202 5 v 202 0v 202 7 v 300V KIX X f V W L1 Y E L3 kN ee T 300 t 50ms Vi 276 V2 140 V3 145 RMS THD CF min min gt 5353 HH HH HH Figure 5 27 When the ERI button is pressed the screen freezes and the top left mode icon is replaced by the icon as shown in Figure 5 27 above NOTE It will take a few seconds for the icon to appear Print transmission speed is 19 2kb i To stop the printing in progress e g in the event of an error press the print button once again The recommended printer for the Model 3945 B is the SEIKO Model DPU414 30B Cat 2140 21 This printer is shipped with set up instructions for use with the Model 3945 B PowerPad 5 10 Help Press
96. wnloading Data to Database sese 82 6 8 1 Recordings eec e eire tec erint 83 6 8 2 Photographs oti ede e degeret oie ee 84 6 8 0 JAl rtmss eie LE es 85 6 8 4 Tr nsients reed TE e e Deci e eet 85 6 8 5 Monitoring ire ctetuer eie utes 87 6 8 6 Saving Real time Measurements sess 88 Power Quality Analyzer Model 3945 B 7 MAINTENANCE rrr nennen nnn 90 7 4 Recharging and Changing the Battery sseees 90 2 Oleaning 3 e eO RR reco E ces 90 APPENDIX A MATHEMATICAL FORMULAS 91 Half period Voltage and Current RMS Values sss 91 MIN MAX Values for Voltage and Current sees 92 Peak Values for Voltage and Current 92 Peak Factors for Current and Voltage 92 1 sec RMS Values for Voltage and Current sess 93 Voltage and Current Unbalance sesseeeee 93 THD Calculation cineri treten leitete 93 Calculation of Harmonic Bins 94 Distortion Factor Calculation DF 94 uWtrepeEE 95 Different Power Levels 1 Sec sssss e 95 cu d 96 Various Types of Energy s eeueseeeeieeeecieeeetne e nnne nre 96 Hysteresis 1 ene crine iicet Ue ii eee Ec ates des Doe eee dee E 98 APPENDIX B GLOSSARY OF TERMS
97. y The PowerPad Model 3945 B is warranted to the owner for a period of one year from the date of original purchase against defects in manufacture This limited warranty is given by AEMC Instruments not by the distributor from whom it was purchased This warranty is void if the unit has been tampered with abused or if the defect is related to service not performed by AEMC Instruments Full warranty coverage and product registration is available on our website at www aemc com warranty html Please print the online Warranty Coverage Information for your records What AEMC Instruments will do Ifa malfunction occurs within the one year period you may return the instrument to us for repair provided we have your warranty registration information on file or a proof of purchase AEMC Instruments will at its option repair or replace the faulty material REGISTER ONLINE AT www aemc com Warranty Repairs What you must do to return an Instrument for Warranty Repair First request a Customer Service Authorization Number CSA by phone or by fax from our Service Department see address below then return the instrument along with the signed CSA Form Please write the CSA on the outside of the shipping container Return the instrument postage or shipment pre paid to Ship To Chauvin Arnoux Inc d b a AEMC Instruments 15 Faraday Drive Dover NH 03820 USA Phone 800 945 2362 Ext 360 603 749 6434 Ext 360
98. y included i When installing probes face the arrow on the probe in the direction of the load Nominal Range 1000A4c for f lt 1kHz Measurement Range 3A to 1200Aac max gt 1000A not continuously i Currents 0 5A will be displayed as zero with this probe Probe Output Signal 1mVAc AAC Maximum Clamping Diameter 2 52mm Safety EN 61010 2 032 Pollution Degree 2 300V CAT IV 600V CAT III Reference Conditions Ambient temperature 73 F 23 C 5 F 3 C Humidity 20 to 75 of RH Frequency 48 to 65Hz Distortion factor lt 1 no DC current Magnetic field of external origin lt 40 A m earth s magnetic field Accuracy Primary current AAC 3 to 10A 10 to 100A 100 to 1200A Accuracy 96 of the output signal lt 0 8 ict lt 0 3 ict lt 0 2 ict Phase shift lt 1 lt 0 5 lt 0 3 Logarithmic interpolation between each specified value Factors affecting accuracy of the output signal Conditions Range Error o 0 Temperature 14 to 122 F 10 to 50 C 200 ppm C or 0 2 per 10 C Relative humidity 10 to 9096 0 196 30 to 48Hz 0 596 Frequency 65 to 1000Hz lt 1 1 to 5kHz lt 2 Position of the cable in the jaws lt 0 1 lt 400Hz Adjacent conductor carrying a Conductor in contact 60Hz AC current with the sensor SUSMA Crest factor distortion lt 6 and current lt 3000

AEMC PowerPad Model 3945-B Power Quality Analyzer

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