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Viewing Results

Viewing Results

Review this chapter to determine which display shows the results that best suit your test
requirements.

Display Screens

The screen displays shown here reflect the default options in the

Measurement

Wiring

Setup

screen. Refer to

Configuring the Power Analyser,

page 20. For reference

those defaults are—

•

20Hz—5KHz, AC & DC

•

4-wire

•

250ms

•

Voltage

The default for DISPLAY CONTRAST is 8.

AC ONLY

has been selected, then

∑

rms will read: RMS (AC) and the message

NOT

CONFIGURED FOR DC MEASUREMENT will display in the

Basics

DC screen.

If an input signal does not fit inside the configured range (

Measurement

& Wiring

Setup

), then your analyser may exhibit one of the following conditions—

•

The screen may display a limited number of results

•

A message may display on the screen instead of results

•

You may not have access to the display screens

Throughout this chapter on Viewing Results, the sample display screens shown are most
often from phase A results. Note that phase B and C results (if configured) are similar to
phase A. Note also that

∑

AB or

∑

ABC provides the total for all configured phases.

The data is as follows—

•

Harmonics, RMS and DC, Volts and Amps: Mean phase value.

•

Inrush and Peak, Volts and Amps: Highest phase value.

•

Watts, VAR: True vector total of all phases.

•

VA: From total watts and VAR.

•

Waveforms: All waveforms are shown in the same graph.

•

Frequency is always from phase A.

Содержание PA2553

Страница 1: ...Powertek USER S GUIDE PA2553 PA2553E Three Phase Power Analyser ...

Страница 2: ......

Страница 3: ...fective as a result of misuse improper repair or abnormal conditions or operations repairs will be billed at cost Powertek assumes no responsibility for its product being used in a hazardous or dangerous manner either alone or in conjunction with other equipment Special disclaimers apply to this instrument Powertek assumes no liability for secondary charges or consequential damages and in any even...

Страница 4: ... information which is subject to change without notice The product s displays and manual text may be used or copied only in accordance with the terms of the license agreement In the interest of continued product development Powertek reserves the right to make changes in this guide and the product it describes at any time without notice or obligation Powertek Powertek UK 19 Cornwallis Rd Bilton Rug...

Страница 5: ...etting Up __________________________________________________ 17 Front Panel _________________________________________________ 18 Rear Panel Connections _______________________________________ 19 Starting the Power Analyser____________________________________ 20 Configuring the Power Analyser ________________________________ 20 Measurement Connections _____________________________________ 24 Using ...

Страница 6: ... Power Analyser _________________________________ 67 Calibration Procedures________________________________________ 67 Voltage Calibration ________________________________________ 69 Current Calibration ________________________________________ 72 Calibration Faults ____________________________________________ 75 APPENDIX A PHYSICAL SPECIFICATIONS ______________________ 77 Temperature Humidity ____...

Страница 7: ...3 Figure 11 Setup Index screen with PRODUCT OPTIONS FITTED selected ___ 24 Figure 12 The Product Options Fitted screen ___________________________ 24 Figure 13 1φ 2 Wire Connections diagram ____________________________ 25 Figure 14 1φ 3 Wire Connections diagram ____________________________ 25 Figure 15 3φ 3 Wire Connections diagram ____________________________ 26 Figure 16 3φ 4 Wire Connections di...

Страница 8: ...ay______________________ 39 Figure 38 Basics FUND φA display with callouts________________________ 40 Figure 39 Basics FUND φABC display ______________________________ 40 Figure 40 Basics HARMS φA display with callouts_____________________ 40 Figure 41 Basics HARMS φABC display ___________________________ 41 Figure 42 Harmonics Bargraph φA VOLTS Log display ________________ 41 Figure 43 Harmonics ...

Страница 9: ..._____________ 47 Figure 68 History AMPS φA PEAK display____________________________ 47 Figure 69 History AMPS φABC PEAK display ________________________ 48 Figure 70 History AMPS φA THD display_____________________________ 48 Figure 71 History AMPS φABC THD display _________________________ 48 Figure 72 History WATTS φA display ________________________________ 48 Figure 73 History WATTS φABC displ...

Страница 10: ...______________________________ 68 Figure 96 Open Circuit Point Zero Readings ___________________________ 69 Figure 97 Voltage Point initial display ________________________________ 69 Figure 98 Internal Voltage Point display ______________________________ 70 Figure 99 External Voltage Point Phase A _____________________________ 70 Figure 100 External Voltage Point Phase B _________________________...

Страница 11: ...to power external circuitry from the PA2553 s internal DC power supplies positive and negative 15V Both the PA2553 and PA2553E analysers display voltage current and wattage results in numeric and graphic waveform formats Results include voltage current wattage and harmonic frequencies in absolute percentage and phase You may display the fundamental in a bargraph format through the 40th harmonic or...

Страница 12: ...e phase or the total of all phases Display harmonics in bargraph or a list format Continuously updated displays of voltage current and wattage waveforms Display historic results for voltage and current watts reactive power and power factor for each of the three phases and the total simultaneously Allowance for scaling of all current readings by a numerical factor Provide adjustable display contras...

Страница 13: ...Converts the current flowing from each phase SOURCE to LOAD into isolated voltages of the PA2553 Analog Anti Alias Filters Reduce the bandwidth of the signals applied to the inputs of the ADCs to less than the sampling frequency Each of the attenuator outputs and the outputs of the Hall Effect transducers are passed through identical analog anti alias filters 16 Bit A to D converters ADC and First...

Страница 14: ...iltered measurement results Harmonics results both amplitude and phase are computed by the DSP by means of a variable length Discrete Fourier Transform DFT Nominally 400 equally spaced samples per cycle are also collected for waveform display purposes At nominal line frequencies and below all measurements are continuous there being no missed portions of the signal in any of the resultant measureme...

Страница 15: ...he DSP copied from the Flash Memory Flash Program Memory This memory is rewritable Flash memory used for DSP program storage The program is copied into RAM following application of power and is CRC checked for integrity After being copied into RAM the flash memory is not used during normal operation Interfaces Note Specifications are subject to change without notice Front Panel Liquid Crystal Disp...

Страница 16: ...P0 DC1 DT1 C0 E2 350ns min T1 Max Talk Data Rate 200 000 bytes per second Max Listen Data Rate 50 000 bytes per second Command Set All front panel capabilities are provided via ASCII textual command sequences Results Any results may be obtained at any time from the interface as ASCII textual numerical data Additionally status and state interrogatives are provided for on the fly determination of pr...

Страница 17: ...er Testing Setting Up The Power Analyser is made to sit on your bench You can optimize the viewing angle by adjusting the handle and optimize the viewing brightness by adjusting the DISPLAY CONTRAST See Configuring the Power Analyser page 20 Figure 1 Bench Type Power Analyser To adjust the handle 1 Press and hold the buttons located where the handle attaches to the case sides 2 Rotate the handle u...

Страница 18: ...Panel detail The screen shows the power measurement results numerically and graphically Refer to Viewing Results page 35 The ON OFF button powers the PA2553 PA2553E on or off The NEXT button allows you to toggle through the five main display groups Refer to Sequence of Display Screens page 29 The F1 through F4 buttons functional softkeys allow you to select menu choices For more information refer ...

Страница 19: ...T EXISTS ON THESE CONNECTIONS PRIOR TO ATTEMPTING TO CONNECT TO THESE INPUT TERMINALS To connect a printer to the PA2553 PA2553E For printer interface connect one end of your printer s cable to the PARALLEL PRINTER port and the other to the printer To connect a PC to the PA2553 PA2553E 1 Attach the computer s IEEE488 cable connector to the 24 pin socket marked IEEE on the rear panel 2 On the front...

Страница 20: ...will see is the same screen that displayed when the analyser was last turned off Configuring the Power Analyser The Setup Indexscreen gives you access to separate interface configuration screens There is a screen for Interfaces Date Time Measurements Current Input selection and scaling Calibration and one to view Product Options Refer to Figure 5 Figure 7 Figure 9 and Figure 11 To reconfigure the ...

Страница 21: ...ion for that data DATE month day year TIME 24 hours minutes seconds DISPLAY CONTRAST 0 to 15 default is 8 PRINTER PCL2 None Text Note that selecting None for the printer type disables the PRINT button in all screens IEEE488 ADREESS 1 through 29 Note If you pass an option you desire you can come back to it by continuing to press CURSOR 3 Press the DONE key to save any changes made and to return to ...

Страница 22: ... 10s 20s 1min SYNC SOURCE Voltage Current 50Hz 60Hz 400Hz No Harmonics 4 Press the DONE key to save any changes made and to return to the main Setup Indexscreen To configure the Current Input Note that the Current Input configuration screen includes selection and scaling The current scale allows you to scale all current readings by a numerical factor Separate scale factors are stored for each curr...

Страница 23: ...vailable option for that data INPUT SELECTION External Volts Internal External Amps The scaling limits for current are within SCALING IN OUT 0000 00A 00 0000A to 9999 99A 99 9999A The scaling limits for voltage are within SCALING IN OUT 0000 00V 00 0000V to 9999 99V 99 9999V 4 Press the DONE key to save any changes made and to return to the Setup Index screen Note that the scale factor for each av...

Страница 24: ...shown below Figure 12 The Product Options Fitted screen 3 Press the DONE key to return to the Setup Indexscreen Measurement Connections WARNING IF THE POWER ANALYSER IS USED IN A MANNER NOT SPECIFIED BY Powertek THE PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPAIRED CAUTION FOR ALL CONNECTIONS KEEP INPUT AND OUTPUT WIRING SEPARATED Using Internal Current Transducers When using the internal curre...

Страница 25: ...efer to the following connection diagrams for each wiring configuration LINE NEUTRAL N LOAD SOURCE PA2553 POWER SOURCE A B C USER LOAD L N TEST DEVICE Figure 13 1φ 2 Wire Connections diagram WARNING SHOCK HAZARD LETHAL VOLTAGES OR CURRENT MAY BE PRESENT ENSURE NO VOLTAGE OR CURRENT EXISTS ON THESE CONNECTIONS PRIOR TO ATTEMPTING TO CONNECT TO THESE INPUT TERMINALS LINE A N LOAD SOURCE PA2553 POWER...

Страница 26: ...URRENT MAY BE PRESENT ENSURE NO VOLTAGE OR CURRENT EXISTS ON THESE CONNECTIONS PRIOR TO ATTEMPTING TO CONNECT TO THESE INPUT TERMINALS Notes 1 Phasing of A B and C is unimportant 2 This wiring configuration may also be used when the PA2553 PA2553E has been set for 3φ 4 wire In that case the PA2553 PA2553E will display the phase to ground voltages however the VA and VAR values may not be valid ...

Страница 27: ...asing of A B and C is unimportant 2 If either the Power Source or User Load does not have a neutral connector then that wire may be omitted 3 This wiring configuration may also be used when the PA2553 PA2553E has been set for 3φ 3 wire In that case the PA2553 PA2553E will display the phase to phase voltages Using External Current Transducers When using the external current transducer access the Cu...

Страница 28: ...indication that the current flow in the transducer is reversed Either the wire is reversed in the transducer or the transducer output has the incorrect polarity This may be resolved by correcting the wiring or by setting the current input scale factor in the power analyser to a negative polarity If a transducer is being used which does not have DC current capability then AC Only input coupling sho...

Страница 29: ...navigating and do not display on the screen Setup Index is used for configuring the analyser and is described in Using the Power Analyser page 17 The other four displays are used to view results and are introduced in the following sequence diagrams Within each main group there are various display screens that are accessible using the softkey buttons Refer to Figure 17 below NEXT PRINT PA2553 P OWE...

Страница 30: ...MEAS φA STOPPED RUNNING INRUSH φB STOPPED RUNNING INTEGRATED φC STOPPED RUNNING INTEG AVG φABC STOPPED RUNNING FUND φA STOPPED RUNNING φB φC φABC HARMS φA STOPPED RUNNING φB φC φABC Note If you wish to display HARMS and FUND press the button in the F2 position second softkey from left until MEAS comes up then press F1 first softkey on left Figure 18 Basic RMS sample display ...

Страница 31: ...AR φB AMPS BAR φC Log ABS Lin ABS Log Lin STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING LIST φA LIST φB LIST φC ABS PCT PHASE SCROLL 1 50 SCROLL 1 50 SCROLL 1 50 STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING Note Some or all of the three phases φA φB and φC may be present depending on the wiring configuration Figure 19 Harmonics Bargraph and List sample display ...

Страница 32: ...G STOPPED RUNNING STOPPED RUNNING ZOOM x 0 5 ZOOM x 1 ZOOM x 2 ZOOM x 5 φA φB φC φABC STOPPED RUNNING V W CONT STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING ZOOM x 0 5 ZOOM x 1 ZOOM x 2 ZOOM x 5 φA φB φC φABC STOPPED RUNNING Figure 20 Waveforms V W CONT φABC sample display ...

Страница 33: ... 3 hr div 6 hr div 12 hr div 1 day div STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING STOPPED RUNNING Figure 21 History WATTS φA sample display Notes 1 The time scale may be set while displaying any data 2 Some or all of th...

Страница 34: ...34 PA2553 User s Guide ...

Страница 35: ...he configured range Measurement Wiring Setup then your analyser may exhibit one of the following conditions The screen may display a limited number of results A message may display on the screen instead of results You may not have access to the display screens Throughout this chapter on Viewing Results the sample display screens shown are most often from phase A results Note that phase B and C res...

Страница 36: ...reens with up to 14 characteristics included in the screens RMS Figure 22 Basics RMS MEAS φA display with callouts Figure 23 Basics RMS MEAS φABC display Figure 24 Basics RMS INRUSH φA display Voltage crest factor High voltage peak High current peak Current crest factor Reactive power Frequency Voltamperes Power factor Amps Volts Watts Time Hours Min Sec ...

Страница 37: ...ABC display Figure 26 Basics RMS INTEGRATED φA display with callouts Figure 27 Basics RMS INTEGRATED φABC display Figure 28 Basics RMS INTEGR AVG φA display Amp Hour Watt Hour Voltamperes Hour Reactive Power Hour Elapsed time of integration Volt Hour ...

Страница 38: ...38 PA2553 User s Guide Figure 29 Basics RMS INTEG AVG φABC display DC Figure 30 Basics DC MEAS φA display Figure 31 Basics DC MEAS φABC display Figure 32 Basics DC INRUSH φA display ...

Страница 39: ...ts 39 Figure 33 Basics DC INRUSH φABC display Figure 34 Basics DC INTEGRATED φA display Figure 35 Basics DC INTEGRATED φABC display Figure 36 Basics DC INTEG AVG φA display Figure 37 Basics DC INTEG AVG φABC display ...

Страница 40: ... FUND φA display with callouts Figure 39 Basics FUND φABC display HARM If you wish to view the HARM display you must press the button in the F2 position until MEAS comes up then press F1 Figure 40 Basics HARMS φA display with callouts Triplens current K factor Total harmonic distortion for voltage Total harmonic distortion for current Reactive Power Voltamperes ...

Страница 41: ...ough to the 50 th harmonic The bargraph format shows through to the 40th harmonic Bargraphs The bargraph displays show the fundamental through the 40th harmonic for current and voltage in Linear or logarithmetically scaled percentage units Linear or logarithmetically scaled absolute units Figure 42 Harmonics Bargraph φA VOLTS Log display Figure 43 Harmonics φA VOLTS ABS Lin display 2 nd through 40...

Страница 42: ...cs Bargraph φA VOLTS ABS Log display Figure 45 Harmonics Bargraph φA VOLTS Lin display Figure 46 Harmonics Bargraph φA AMPS Log display Figure 47 Harmonics Bargraph φA AMPS ABS Lin display Figure 48 Harmonics Bargraph φA AMPS ABS Log display ...

Страница 43: ...ited to a few lines Use the Scroll button to view the fundamental through the 50th harmonic result The List screens show harmonics in Absolute with THD Percentages with THD Phase shift to phase A voltage fundamental Figure 50 Harmonics List φA ABSOLUTE display Figure 51 Harmonics List φA PERCENTAGE display ...

Страница 44: ...s are in xy waveform format Each screen displays two waveforms for comparison purposes with additional information provided with an inset The waveforms can be viewed at zoom levels of x0 5 x1 x2 and x5 The analyser will automatically center the input results vertically on the screen no matter what the range Figure 54 Waveforms V A CONT φA display with callouts Waveform timespan Automatically fits ...

Страница 45: ...sults 45 Figure 55 Waveforms V A CONT φB display Figure 56 Waveforms V A CONT φC display Figure 57 Waveforms V A CONT φABC display Figure 58 Waveforms V W CONT φA display Figure 59 Waveforms V W CONT φABC display ...

Страница 46: ...inutes 30 minutes 1 hour 3 hours 6 hours 12 hours and one day per division The analyser will automatically scale and center the input results vertically on the screen Figure 60 History VOLTS φA RMS display with callouts Figure 61 History VOLTS φABC RMS display Figure 62 History VOLTS φA PEAK display Figure 63 History VOLTS φABC PEAK display Automatically fits range to data input One division ...

Страница 47: ... Results 47 Figure 64 History VOLTS φA THD display Figure 65 History VOLTS φABC THD display Figure 66 History AMPS φA RMS display Figure 67 History AMPS φABC RMS display Figure 68 History AMPS φA PEAK display ...

Страница 48: ...553 User s Guide Figure 69 History AMPS φABC PEAK display Figure 70 History AMPS φA THD display Figure 71 History AMPS φABC THD display Figure 72 History WATTS φA display Figure 73 History WATTS φABC display ...

Страница 49: ...Viewing Results 49 Figure 74 History VAR φA display Figure 75 History VAR φABC display Figure 76 History PF φA display Figure 77 History PF φABC display ...

Страница 50: ...50 PA2553 User s Guide ...

Страница 51: ...seconds Elapsed time Powertek PA2553 or Powertek PA2553E Version number Note Select PCL2 within the Interface Setup screen for graphical printouts The samples provided have been printed from each of the display groups Basics Harmonics Waveforms and History In each case the specific phase or sum of phases prints out in accordance with the phase presently displaying From the Basics group you can pri...

Страница 52: ...printer is selected See Figure 83 Figure 85 and Figure 86 If a text only printer is selected then volts and amps will print in a textual representation of the waveforms See Figure 84 Each Historydisplay will print a full page of formatted data See Figure 87 and Figure 88 The following pages illustrate some sample printouts ...

Страница 53: ...t like the following press the PRINT button from any one of the Basics display screens For phase A data press the PRINT button when φA is displaying in the F3 position etc for phase B and C Figure 78 Phase A Basic Measurement printout ...

Страница 54: ...553 User s Guide For a printout of the total Basics Measurements press the PRINT button from any one of the Basics displays when φABC is showing in the F3 position Figure 79 Total Basic Measurements printout ...

Страница 55: ...on from Harmonics BAR φA AMPS Log screen to print a barchart like the one shown below Each Harmonics display screen will print separately Configure the analyser for a PCL2 printer Figure 80 Phase A Current Harmonics Barchart graphic printout ...

Страница 56: ...onics BAR φA AMPS Log screen to print a barchart like the one shown below Each Harmonics display screen will print separately This sample printed with the analyser configured for Text printer Figure 81 Phase A Current Harmonics Barchart nongraphic printout ...

Страница 57: ...m any Harmonics List display screen to print out PCT ABS and PHASE data for both voltage and current Each Harmonics List printout includes the fundamental through all available harmonics up to the 50th Figure 82 Phase B Harmonics Data List printout ...

Страница 58: ... PRINT button from Waveforms V A CONT or V W CONT screens For a phase A printout as shown below press PRINT when φA is displaying in the F3 position etc for Phase B and C Configure the analyser for a PCL2 printer Figure 83 Phase A Waveforms graphic printout ...

Страница 59: ...ONT screen For a phase A printout as shown below press PRINT when φA is displaying in the F3 position Note that a printout for phases B and C will be similar This sample printed with the analyser configured for a Text printer Figure 84 Phase A Volts and Current Waveforms nongraphic printout ...

Страница 60: ...om the Waveforms V A CONT or V W CONT screens For a phase B printout as shown below press PRINT when φB is displaying in the F3 position Note that a printout for phase C will be similar Configure the analyser for a PCL2 printer Figure 85 Phase B Waveforms graphic printout ...

Страница 61: ...a similar printout press the PRINT button from Waveforms V A CONT or V W CONT screens whenever φABC is showing in the F3 position Configure the analyser for a PCL2 printer Figure 86 Waveforms Volts Amps Power graphic printout ...

Страница 62: ...rom any one of the Historydisplay screens for a printout of the data being displayed The printout shown below is from the History φA Amps RMS display Configure the analyser for a PCL2 printer Figure 87 Phase A Current Level History graphic printout ...

Страница 63: ...the Historydisplay screens for a printout of the data being displayed The printout shown below is from the History φA Amps RMS display This sample printed with the analyser configured for Text printer Figure 88 Phase A Current Level History nongraphic printout ...

Страница 64: ...64 PA2553 User s Guide ...

Страница 65: ...g the correct levels for your analyzer Removing DC Current Offsets It is recommended that this procedure be performed at regular intervals and whenever large ambient temperature changes occur Also if Option E is fitted perform this procedure when changing the external current transducer Note that the DC Current Offset procedure must be applied to all three of the CURRENT INPUT SELECTIONS fitted in...

Страница 66: ...red For the PA2553E Internal External Amps and External Volts For the PA2553 Internal 4 Press the DONE button 5 Press the CURSOR button three times the CALIBRATION choice is now highlighted Figure 91 Calibration selected 6 Press the SETUP button The display changes to the Calibration Setup as shown below Figure 92 DC Zero Date selected 7 Ensure that there is no current flow in the selected current...

Страница 67: ...rator that can drive a 200mV burden at a minimum 0 025 accuracy and 0 01 short term stability Use a Fluke 5700 multi function calibrator or equivalent for calibrating the standard PA2553 PA2553E Use a Fluke 5725A or equivalent to calibrate the power analyser 40A Option Calibration Procedures The user may calibrate the external current inputs with a user supplied current transducer connected howeve...

Страница 68: ...e CURSOR key once The date that the power analyser was last calibrated is now highlighted Figure 94 Calibration Date selected To perform the open circuit point cal 1 Press PERFORM The display for calibrating the Open Circuit for Internal and the External Amps will show INPUT ALL INPUTS OPEN CIRCUIT The display for calibrating Open Circuit for External Volts will show ALL TERMINALS OPEN BNC SHORTED...

Страница 69: ...ot to perform the next cal point press SKIP instead of NEXT Note If you skip any of the three cal points the calibration date in the Setup Index screen will not be updated Voltage Calibration Depending on voltage option the voltage cal point prompt will display INPUT 400VDC SOURCE L N TO CHASSIS INPUT 200VDC SOURCE L N TO CHASSIS INPUT 120VDC SOURCE L N TO CHASSIS Figure 97 Voltage Point initial d...

Страница 70: ...nd press ACCEPT 5 Wait another minute for the readings to settle to 0 0 1 and press ACCEPT 6 Press NEXT when the readings are within specification 7 Press SAVE DATA when all readings are within specification To perform the external voltage point cal 1 Connect the calibrator to the BNC of Phase A on the rear panel 2 Apply the proper voltage input as shown on the display Figure 99 External Voltage P...

Страница 71: ...calibrator lead to the BNC of Phase C Figure 101 External Voltage Point Phase C 9 Repeat steps 2 through 4 apply proper voltage wait for readings to settle to 0 0 1 and press ACCEPT wait another minute for readings to settle and press ACCEPT 10 Press SAVE DATA when all readings are within specification If you choose not to perform the next cal point press SKIP instead of NEXT Note If you skip any ...

Страница 72: ...itted Figure 102 Internal Current Cal Point display WARNING SHOCK HAZARD LETHAL VOLTAGES OR CURRENT MAY BE PRESENT ENSURE NO VOLTAGE OR CURRENT EXISTS ON THESE CONNECTIONS PRIOR TO ATTEMPTING TO CONNECT TO THESE INPUT TERMINALS To perform the internal current cal point 1 Connect the positive lead of the calibrator to SOURCE A binding post 2 Connect the negative lead of the calibrator to the LOAD A...

Страница 73: ...lead to the LOAD B binding post 9 Repeat steps 3 through 6 apply proper current wait for readings Ab to settle to 0 0 1 and press ACCEPT wait another minute for readings to settle and press ACCEPT Press NEXT and the following screen will display Figure 105 Load C Current Cal Point display 10 Move the calibrator positive lead to the SOURCE C binding post 11 Move the calibrator negative lead to the ...

Страница 74: ... to the BNC of Phase A 2 Apply the proper current input as shown on the display Figure 107 External Transducer A Current Cal Point display 3 Wait one minute for the Aa readings to settle and press ACCEPT 4 Wait one minute for the readings to settle to 0 0 1 and press ACCEPT 5 Press NEXT when the readings are within specification 6 Move the calibrator to the BNC of Phase B Figure 108 External Trans...

Страница 75: ...AVE DATA when the readings are within specification 11 Press DONE Note If you have not skipped any steps then the present date will automatically replace the previous CALIBRATED date for the selected CURRENT INPUT Calibration Faults In the event of a calibration fault please check the connections to the calibrator and the analyser before attempting calibration again If you are unable to correct a ...

Страница 76: ...ductor of coax Negative Coax Shield Positive EXTERNAL C bnc Center conductor of coax 3 Phase Internal Current Connections 3 Phase External Current Connections Calibrator Lead Rear Panel Calibrator Lead Rear Panel Negative LOAD A Amp External transducer Positive SOURCE A B C Volt EXTERNAL A bnc Negative LOAD B Amp External transducer Positive SOURCE A B C Volt EXTERNAL B bnc Negative LOAD C Amp Ext...

Страница 77: ...ntative Refer also to Appendix B Measurement Specifications Note Specifications subject to change without notice Temperature Humidity Operating 0 C to 45 C 85 RH 40 C non condensing Storage 30 C to 65 C 95 RH 40 C non condensing Size Weight Size HxWxD 4 x 11 x 10 Weight 6lbs 2 7kg Power Input Voltage 80 265Vrms auto selecting Frequency 50 60 400Hz 25VA max ...

Страница 78: ...78 PA2553 User s Guide ...

Страница 79: ...owertek or its representative Refer also to Appendix A Physical Specifications Note Specifications subject to change without notice Power Source Capabilities Option E only Output Voltage and 15V within 0 5V Source Impedance 5 Maximum Load 100mA Input Signal Capabilities Binding Post Signal Terminals Voltage 950V option 2500Vpk for 1s 675Vrms continuous 950Vpk measurable Voltage 1500V option 2500Vp...

Страница 80: ... to Load 8A option 50m Source to Load 40A option 15m BNC Signal Terminals Option E only VOLTAGE Mode To Chassis 100K 5pF Signal 100K 5pF CURRENT Mode To Chassis 50 5pF Signal 100m Measurement Accuracy Unless otherwise shown all percentages are percentage of the reading When including DC signal content add DC Measurement Accuracy if total signal is less than 0 5 full scale for option or if DC compo...

Страница 81: ...05V 0 02 KHz add 0 1 below 40Hz if AC coupled add 0 5V for peak measurements Common Mode 70dB decreasing linearly to 40dB at 75KHz Current to Voltage Crosstalk typically negligable Voltage to Voltage Crosstalk 120dB decreasing linearly to 80dB at 75KHz Phase to other phase 0 1 0 025 KHz Voltage Option 950V DC 0 1 0 25 above 400V 0 15V 0 02Hz to 20Hz range 0 1 0 25 above 400V 0 025V 0 1 Hz add 0 15...

Страница 82: ...z add 0 05 below 0 4Hz if AC coupled add 0 2V for peak measurements 2Hz to 2KHz range 0 1 0 25 above 500V 0 075V 0 001 Hz add 0 05 below 4Hz if AC coupled add 0 3V for peak measurements 20Hz to 5KHz range 0 1 0 25 above 500V 0 1V 0 4 KHz add 0 05 below 40Hz if AC coupled add 1V for peak measurements 20Hz to 75KHz range 0 1 0 25 above 500V 0 15V 0 04 KHz add 0 1 below 40Hz if AC coupled add 2V for ...

Страница 83: ...peak measurements Common Mode 0 000001A V KHz i e 0 0002A per KHz at 230V Current to Current Crosstalk 80dB decreasing linearly to 50dB at 75KHz Phase to other phase 0 1 0 05 KHz Phase to Voltage 0 1 0 05 KHz add 1 for frequencies 1KHz to 10KHz Internal Current Option 40A DC 0 1 0 025A 0 02Hz to 20Hz range 0 1 0 025A 0 1 Hz add 0 15 below 0 04Hz if AC coupled add 0 1A for peak measurements 0 2Hz t...

Страница 84: ...V 0 1 Hz add 0 15 below 0 04Hz if AC coupled add 0 0005V for peak measurements 0 2Hz to 200Hz range 0 1 0 0001V 0 01 Hz add 0 05 below 0 4Hz if AC coupled add 0 0005V for peak measurements 2Hz to 2KHz range 0 1 0 0001V 0 001 Hz add 0 05 below 4Hz if AC coupled add 0 0005V for peak measurements 20Hz to 5KHz range 0 1 0 00015V 0 4 KHz add 0 05 below 40Hz if AC coupled add 0 0015V for peak measuremen...

Страница 85: ...ements 20Hz to 75KHz range 0 1 0 005A 0 02 KHz add 0 1 below 40Hz if AC coupled add 0 05A for peak measurements Phase to Voltage 0 1 0 05 KHz Phase to other phase 0 1 0 05 KHz Current to Current Crosstalk 100dB decreasing linearly to 70dB at 75KHz VA Applied Voltage x Current Accuracy Applied Current x Voltage Accuracy Power Factor Combination of phase and crosstalk specifications At 115 or 230Vrm...

Страница 86: ...urrent x Voltage Accuracy phase accuracy and common mode At 115 or 230Vrms current 10 range for option fitted external current accuracy of VAR reading PF 1 0000 0 9000 0 7000 0 5000 0 3000 0 1000 0 0000 50 60Hz 0 2 VA 1 1 0 5 0 3 0 3 0 2 0 2 400Hz 0 2 VA 1 2 0 5 0 4 0 3 0 2 0 2 30KHz 1 0 VA 13 4 5 2 8 2 1 1 6 1 4 75KHz 5 VA 40 14 8 3 6 4 4 4 2 Harmonics In the following N denotes a harmonic number...

Страница 87: ... Factor Accuracy From accuracy of amplitude results Range 1 to 999 Load K Factor Accuracy From accuracy of harmonics results typical accuracy within 0 02 at line frequencies Range 1 to 999 Waveforms Number of points per cycle 400 nominally 0 4 accuracy Amplitude Accuracy As relevant peak accuracy History Timing Accuracy 0 05 10ms Timing Resolution 5 of a division Result Accuracy As the result Filt...

Страница 88: ...88 PA2553 User s Guide Timing per division 0 4 seconds 1 second 2 seconds 5 seconds 10 seconds 30 seconds 1 minute 3 minutes 10 minutes 30 minutes 1 hour 3 hours 6 hours 12 hours 1 day user selectable ...

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