Megger MPQSIM Скачать руководство пользователя страница 62 | Manualshive

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AVTMMPQSIM Rev 1 May 2017

56

21.

Create a THD chart

Click on the SETUP button to return to the chart selection screen then select the
"THD" chart and click CREATE.

You can create THD charts to view the total harmonic distortion on the voltage
channels and the current channels if you wish. However you can also create TDD
total demand distortion charts to view the harmonic distortion on the current
channels. TDD provides a better method for viewing current waveform distortion
since the reference value is not changing.

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Содержание MPQSIM

Страница 1: ...AVTMMPQSIM Rev 1 May 2017 Megger User Manual MPQSIM Power Quality Simulator 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com...

Страница 2: ......

Страница 3: ...MPQSIM User Manual...

Страница 4: ...shipment Our liability is specifically limited to replacing or repairing at our option defective equipment Equipment returned to the factory for repair must be shipped prepaid and insured Contact your...

Страница 5: ...17 Method 2 Real Time Demand Scope Screen 18 Method 3 Recording Data 18 Active Power vs Reactive Power 19 Method 1 Real Time Demand DVM Screen 19 Method 2 Recording Data 19 Displacement Power Factor...

Страница 6: ...28 8 UNIT MAINTENANCE 29 Instructions for Cleaning and Decontamination 29 9 SPARE PARTS 31 ADDENDUM A SAMPLE QUICK TRAINING 33 ADDENDUM B SAMPLE DEMAND TRAINING 37 ADDENDUM C SAMPLE POWER QUALITY TRAI...

Страница 7: ...1 1 INTRODUCTION Thank you for purchasing the MPQSIM Power Quality Simulator from Megger If you find any discrepancies in the product or its accessories or have any comments please send them to Megge...

Страница 8: ...M AVTMMPQSIM Rev 1 May 2017 2 M...

Страница 9: ...en your Megger product arrives check the equipment received against the packaging list to ensure that all materials are present Notify Megger of any shortages Examine the contents for damage received...

Страница 10: ...M AVTMMPQSIM Rev 1 May 2017 4 M...

Страница 11: ...power quality phenomenons The MPQSIM is not intended to be used for instrument calibration or troubleshooting Applications Applications include Demonstrating Power Quality Phenomenon Power Quality Ph...

Страница 12: ...the phase voltages as well as the number of degrees between the phase voltage and phase current Harmonics Sinusoidal components of periodic waves that have frequencies that are multiples of the funda...

Страница 13: ...ngle Selection from nominal 30 11 0 11 Phase Accuracy 1 5 Voltage Transient Amplitude 1075 50Vpk Voltage Transient Rise Time 18 5 sec Voltage Transient Duration 35 10 sec Harmonic Orders 3rd and 5th H...

Страница 14: ...M AVTMMPQSIM Rev 1 May 2017 8 Altitude 2000 meters EMF IEC 61326 2012 Class A Basic Immunity Safety IEC61010 1 IP Rating 40 CAT Rating CAT II 300V...

Страница 15: ...instrument connected to the system under test when not in use Do not touch circuit connections or any metal that is exposed due to damaged insulation Do not use the instrument or connect it to any ex...

Страница 16: ...d PROTECTIVE TERMINAL The Phase C RTN banana jack must be connected to Earth Ground prior to the connection of any of the other voltage output banana jacks Safety and Warning Symbols SYMBOL REFERENCE...

Страница 17: ...PQ1000 to Earth Ground 3 Plug the Phase A voltage lead supplied with the Megger PQ Product between the Phase A 115V or 230V banana jack on the MPQ SIM and the Phase A voltage input of the MPQ1000 4 Pl...

Страница 18: ...s supplied with the Megger PQ Product connect the Phase A low input to the Phase A RTN jack on the MPQ SIM 6 Using the voltage leads supplied with the Megger PQ Product connect the Phase B high input...

Страница 19: ...nt connector of the Megger PQ Product 12 Plug the Phase C current lead into the MPQSIM Phase C current connector 13 Plug the other side of the Phase A current lead into the Phase A current connector o...

Страница 20: ...M AVTMMPQSIM Rev 1 May 2017 14 M...

Страница 21: ...f the simulated current probe Transient Button Applies a momentary transient pulse on the voltage signal Amplitude Selector Voltage Sets the voltage amplitude This value is set as a percentage of the...

Страница 22: ...ncandescent lighting Power Direction Switch Sets the power flow The power flow can either be from the source or the load Line Frequency Switch Sets the fundamental line frequency The line frequency ca...

Страница 23: ...ower Reversal Verify the Power Quality instrument connected to the simulator is programmed to record power in a 4 wire wye 3 wattmeter configuration Method 1 Real Time Demand DVM Screen 1 Verify the c...

Страница 24: ...as a programmed demand interval of no more than 1 minute This simulation will require that at least 6 demand intervals are captured The longer the demand interval the longer this test will take 2 Veri...

Страница 25: ...er Method 2 Recording Data 1 Verify the Power Quality instrument connected to the simulator has a programmed demand interval of no more than 1 minute This simulation will require that at least 6 deman...

Страница 26: ...nt power factor DPF When the load is capacitive as in a cap bank the current leads the voltage This will be seen as a negative displacement power factor DPF The sign of the DPF will always equal the s...

Страница 27: ...he Voltage Phase A B and C Phase Angle selector switches to 30 7 Allow the unit to record for at least 3 demand intervals 8 Set the Voltage Phase A B and C Phase Angle selector switches to 11 9 Allow...

Страница 28: ...Apparent Power KVA the Active Power KW and the Reactive Power KVAR NOTE The power triangle now has increased errors This shows that power triangle does not hold true for non sinusoidal waveforms Meth...

Страница 29: ...dip limit of no more that 10 of the MPQSIM voltage output that it is connected NOTE If you wish to record RMS values as well it may be best to set the RMS storage interval to 3 seconds so you do not...

Страница 30: ...onds 7 Set the voltage phase Amplitude selector switch back to 100 8 Allow the unit to record for several seconds 9 Note the unit now displays a Swell event 10 Stop the recording 11 The Swell event ca...

Страница 31: ...mulator has the following settings programmed a Phase Ange Events Enabled b Rotation ABC c Phase A Nominal Angle 0 d Phase B Nominal Angle 120 e Phase C Nominal Angle 240 f Phase B Angle Deviation 2 0...

Страница 32: ...wye 3 wattmeter configuration Method 1 Real Time Harmonics DMM Screen 1 Verify the controls are set to their initial settings 2 Verify the Voltage and Current Harmonic switches are set to OFF 3 View t...

Страница 33: ...d Timed Capture Duration in Cycles 6 e Enable THD Recording Enabled f Enable IEC Harmonics Recording Enabled g THD Harmonic Storage Interval 3 Seconds 2 Verify the controls are set to their initial s...

Страница 34: ...nstantaneous flicker value on the MPQ DVM screen is now showing a value 7 Wait one minute for the Pst 1 Minute value to display Method 2 Recording Data 1 Verify the Power Quality instrument connected...

Страница 35: ...M Rev 1 May 2017 29 8 UNIT MAINTENANCE This unit has no field serviceable parts within it Instructions for Cleaning and Decontamination The unit should not be cleaned with anything more than a clean d...

Страница 36: ...M AVTMMPQSIM Rev 1 May 2017 30 M...

Страница 37: ...AVTMMPQSIM Rev 1 May 2017 31 9 SPARE PARTS PART NO DESCRIPTION 2008 124 Current Cable 90017 548 AC Adapter...

Страница 38: ...M AVTMMPQSIM Rev 1 May 2017 32 M...

Страница 39: ...00 THD limit 5 0 RMS storage interval 3 Seconds See Addendum D Complete 115V MPQ Setup File for full setup file Programming the MPQ Analyzer for 230V input from simulator Voltage sag dip limit 207 00...

Страница 40: ...low NOTE This can also be viewed in the scope mode and in the unbalance vectors as currents being 180 out of phase c Set the Power Direction Switch on the PQ Simulator to SOURCE 7 Leading Lagging Curr...

Страница 41: ...will register a swell 11 Create a Transient a Allow the unit to record for approximately 15 seconds minimum b Create a transient by depressing and releasing one of the transient switched on the PQ Si...

Страница 42: ...t the unit record for about 1 minute d Turn OFF the voltage and current harmonic switches e Let the unit record for about another 15 seconds then stop the recording 15 View the data on the MPQ Analyze...

Страница 43: ...onds Demand Configuration 4 Wire Wye 3 Wattmeter Demand Storage Interval 5 Minutes See Addendum 4 Complete 115V MPQ Setup File for full setup file Programming the MPQ Analyzer for 230V input from simu...

Страница 44: ...he power factor of the fundamental value COS of the phase angle between the voltage and current b View the waveforms on the Scope screen of the MPQ Analyzer Scroll through the phases The currents are...

Страница 45: ...rent that s magnetic field opposes the change which produces it c View the Vectors and Power Factor on the DVM Power screen of the MPQ Analyzer The phase rotation due to the lagging current moves the...

Страница 46: ...s are backwards Verify the arrows on the current probes point toward the load NOTE This can also be viewed in the scope mode and in the unbalance vectors as currents being 180 out of phase c Set the P...

Страница 47: ...gle on the PQ Simulator to 30 The KVAR on Phase A increased due to the increase in reactive current caused by the added inductive load c Turn ON the Phase A Voltage and Current Harmonics on the PQ Sim...

Страница 48: ...ollowing Each KWH 5 minute interval KW 12 Each KVAR 5 minute interval KVAR 12 Each KVA 5 minute interval KVA 12 This is because the demand interval was set to 5 minutes There are 12 5 minute intervals...

Страница 49: ...ut from simulator Voltage sag dip limit 108 00 Voltage swell limit 132 00 Fast transient limit 400 00 THD limit 5 0 RMS storage interval 3 Seconds See Addendum 4 Complete 115V MPQ Setup File for full...

Страница 50: ...he scope screen of the MPQ Analyzer Examinations of voltage waveforms can indicate power quality problem These can include harmonic distortion notching and noise d View the scope harmonics screen of t...

Страница 51: ...egative sequence positive sequence 100 is most the key unbalance value to reference when working with motor loads Negative sequence unbalance is the basis of most international standards for unbalance...

Страница 52: ...he higher the harmonic order the greater this effect Eddie current losses increase with approximately the square of the frequency IEC 61000 2 2 specifies harmonic distortion compatibility levels depen...

Страница 53: ...ary or short duration dips sags can occur more frequently Dips sags can be generated from either the load side of the source side Large loads turning on this can create high inrush currents that creat...

Страница 54: ...resis programmed by the user The recommended thresholds for swell detection is 1 1pu the the RMS value aggregated every 1 2 cycle For example A 230V system the dip sag limit would be 253V A 120V syste...

Страница 55: ...few hundred KHz range They are caused by lightning or equipment switching operations They can be either uni directional or bi directional Impulsive transients can pass through transformers and appear...

Страница 56: ...urrent distortion TDD references the harmonic content of the current channels to the maximum average current drawn within the test interval This can be analyzed in the PC software provided the unit is...

Страница 57: ...els and note the deviation throughout the test period It is recommended that the voltage THD does not exceed 8 of nominal for 95 of the test interval It is recommended that this value is measured in 1...

Страница 58: ...Highlight the name of the data file in the data file bar 16 Create a Summary and Setup report Click on the CREATE REPORT button then select the Summary and Setup report and click CREATE This report pr...

Страница 59: ...provides a brief view of the out of limits data The report only shows the data for the channel that triggered the out of limits event 18 Create an Out Of Limits Detailed report Click on the SETUP butt...

Страница 60: ...one method is to examine the direction of the voltage event and the current If the voltage dips while the current swells this an indication that the event was on the load side If the voltage and curre...

Страница 61: ...lance chart Click on the SETUP button to return to the chart selection screen then select the IEC Unbalance chart and click CREATE NOTE The unbalance can be shown as negative and zero sequence unbalan...

Страница 62: ...ATE You can create THD charts to view the total harmonic distortion on the voltage channels and the current channels if you wish However you can also create TDD total demand distortion charts to view...

Страница 63: ...k on the SETUP button to return to the chart selection screen then select the IEC Harmonics chart and click CREATE You can view both harmonics and inter harmonics You can select which harmonic orders...

Страница 64: ...k on the trace This will open a window that will allow you to alter the trace parameters or view the values of each data point You can change the line weight This is a nice feature when you want to co...

Страница 65: ...lysis of the waveform It can be viewed as either text or as a bar chart The user can also zoom into the bar chart Using the detailed harmonic analysis helps characterize waveforms For example a 6 puls...

Страница 66: ...CHART POWER HARMONIC ANALYSIS Then select the Cycle of the Waveform to be analyzed and click CREATE This chart will allow you to see which direction the different harmonic orders are coming from This...

Страница 67: ...is Click on CREATE CHART PQ EVENT WAVEFORM ANALYSIS This chart allows you to view all the out of limits event data You will also see the traces associated with those events In addition you can filter...

Страница 68: ...t averaged cycle It will then plot the individual harmonics orders of the waveform captures A scan line can then be moved back and forth through the chart The actual waveform for that interval can be...

Страница 69: ...the real world This is just a short interval to accumulate data quickly for demonstration Enable IEC Unbalance Recording Enabled Clock Hour Orientation Enabled Enable IEC Flicker Recording Not Enabled...

Страница 70: ...eal world This is just a short interval to accumulate data quickly for demonstration Timed Capture Duration 6 Cycles Exceedance Capture Pre Triggers 9 Exceedance Capture Post Triggers 20 THD Harmonics...

Страница 71: ...erval used in the real world This is just a short interval to accumulate data quickly for demonstration Enable IEC Unbalance Recording Enabled Clock Hour Orientation Enabled Enable IEC Flicker Recordi...

Страница 72: ...umulate data quickly for demonstration Timed Capture Duration 6 Cycles Exceedance Capture Pre Triggers 9 Exceedance Capture Post Triggers 20 THD Harmonics Enabled THD Harmonic Interval 3 Seconds This...

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