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Tektronix PA3000 Installation & Safety Manual
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Tektronix PA3000 Installation & Safety Manual

Tektronix PA3000 Installation & Safety Manual

Power analyzer
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PA3000 Four-channel,
Multi-phase AC/DC Power Analyzer
––
HOW-TO DEMONSTRATION GUIDE
The Tektronix PA3000 is a one- to four-channel power analyzer that is optimized for testing today's single- and multi-phase,
high efficiency power conversion products and designs. Use it to quickly visualize, analyze, and document power efficiency,
energy consumption, and electrical performance to the latest regional and international standards.
Each test example in this demo guide discusses two methods of making the same measurements. The first method refers to
making the measurements directly on the PA3000 using the front panel, whereas, the second method demonstrates the use of
free PWRVIEW Software. In each test example, the second method (PWRVIEW) is the preferred method, because it is easier
and enables more user flexibility and customization options.
Tektronix recommends reviewing all of the test examples to reach the best understanding of all features offered by the PA3000
and the PWRVIEW Software.
Table of Contents
Test 1: Efficiency Testing Single Phase Applications ................................................................................................... 1
Test 2: Efficiency Testing Three Phase Applications .................................................................................................... 9
Test 3: Energy Consumption Testing ..........................................................................................................................17
Test 4: Standby Power Measurements (IEC 62301 Ed 2.0) ....................................................................................... 23
Test 5: Inrush Current Testing .................................................................................................................................................29

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Summary of Contents for Tektronix PA3000

  • Page 1 PWRVIEW Software. In each test example, the second method (PWRVIEW) is the preferred method, because it is easier and enables more user flexibility and customization options. Tektronix recommends reviewing all of the test examples to reach the best understanding of all features offered by the PA3000 and the PWRVIEW Software.

  • Page 3: Watch Video

    Complete the following steps to setup the efficiency measurement on an AC-DC power supply with the PA3000 Power Analyzer: Connect the AC input on the device under test (DUT) to the first channel of the PA3000 using a Tektronix Breakout Box (BB1000) as shown in the wiring diagram.
  • Page 4 Figure 1-2. AC-DC efficiency measurement wiring diagram. METHOD 1: EFFICIENCY MEASUREMENTS ON SINGLE PHASE AC-DC POWER SUPPLIES. (PA3000 DIRECT) The following steps describe the process for setting up the PA3000 for efficiency measurements on an AC-DC power supply. WHAT YOU WILL NEED — METHOD 1 •...
  • Page 5 After selecting all of the desired parameters, press to view the Results screen. – The PA3000 is now set up for making AC and DC measurements on the first and second channels respectively. Power on the DUT from the AC source; an appropriate load can be applied to the DUT at this point.
  • Page 6 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Efficiency Testing Single Phase Applications 17. Generally a 30 minute warm-up period is required by the standard, before any efficiency measurements are made on an AC-DC Power Supply. 18. Check for power stability measurements for five minutes on the input of the Power Supply and then log an efficiency measurement at 100% load.
  • Page 7 USB cable. Ethernet or GPIB can also be used, if desired. Open the PWRVIEW software by double-clicking the desktop icon. Click the Add button to connect the PA3000. All available instruments will be listed in the selection panel.
  • Page 8 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Efficiency Testing Single Phase Applications Click Finish when done, and the page will direct you to the Efficiency Setup tab. Verify the instrument and group information and then click the check box for the Measurement Efficiency.
  • Page 9 The accuracy of the waveform depends on the amount of harmonic information available. For optimum results, select maximum number of harmonics to display in the setup area. Selecting 100 harmonics for the PA3000 gives the best results. If no harmonics are selected, waveform feature will display a blank screen.
  • Page 10 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Efficiency Testing Single Phase Applications Custom Limits. Custom limits can also be set with any of the measurement parameters. Custom limits help set limits based on various standards or test specifications. Figure 1-8.
  • Page 11 METHOD 1: EFFICIENCY MEASUREMENTS ON THREE PHASE PWM MOTOR DRIVE (PA3000 DIRECT) This method demonstrates three phase power and efficiency measurements on a single phase input and three phase output PWM motor drive directly on the PA3000 display. WHAT YOU WILL NEED — METHOD 1 •...
  • Page 12 For the PWM motor drive output, from the Main Menu, select Modes  Select Mode PWM Motor. – The PWM Mode will set up the PA3000 to accurately measure the output voltage of a typical PWM drive that switches at high frequencies. The algorithm applies a proprietary...
  • Page 13 Torque and Speed Inputs. The overall efficiency of a motor drive system requires measuring real- time speed and torque data. The PA3000 has four analog and two counter inputs to enable various auxiliary input measurements such as torque and speed.
  • Page 14 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Efficiency Testing Three Phase Applications Waveforms, Harmonics, and Vector Graphs. Waveforms, harmonics, and vector graphs can be enabled for all three phase signals. Figure 2-3. Vector graph on the PA3000. • To monitor AC waveforms, harmonics, or the vector graph use the keys respectively.
  • Page 15 This method can be used for simultaneously testing 3-phase input and outputs on a 4-channel power analyzer. 3. After making all of the power connections, connect the PA3000 to the computer with the PWRVIEW software installed using the supplied USB cable. Ethernet or GPIB can used.
  • Page 16 FURTHER SETTINGS IF REQUIRED Torque and Speed Inputs. The overall efficiency of a motor drive system requires measuring real-time speed and torque data. The PA3000 has four analog and two counter inputs to enable various auxiliary input measurements such as torque and speed.
  • Page 17 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Efficiency Testing Three Phase Applications • On the Auxiliary Inputs tab page, enter the desired label, units and equation for the respective analog and counter inputs Equation Guidelines on the bottom can be used for assistance with entering equations.
  • Page 18 PA3000. The accuracy of the waveform depends on the harmonic information available. For optimum results, select the maximum number of harmonics to display in the setup area. Selecting 100 harmonics for the PA3000 gives the best results. If no harmonics are selected, waveform feature will display a blank screen.

  • Page 19: Watch Video

    Connect the AC input on the DUT to the first channel of the PA3000 using a Tektronix BB1000 Breakout Box as shown in the wiring diagram. The breakout box taps in to the current signal and measures the voltage across the input terminals.
  • Page 20 The PA3000 will display integration parameters such as: Hr, Whr, VAHr, and AHr. 6. Power on the DUT and the results on the PA3000 should start updating. – The integration results will display zero until it is triggered either manually using the INTEG RUN key on the front panel or by the selected start method.
  • Page 21 If the range is too low, a warning message will display. This will not harm the PA3000. The range should not be set too high as this will compromise the overall accuracy. TEK.COM | 19...
  • Page 22 7. The wizard helps with wiring and shunt selections. 8. The PA3000 can compute the value of VArs required to correct the power factor to a target value. This can be selected with the wizard by entering the desired power factor.
  • Page 23 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Energy Consumption Testing FURTHER SETTINGS IF REQUIRED Trend Chart. The integration graph can be activated through the Trend chart feature in PWRVIEW. • The Trend chart can be activated for any integration measurement by either right-clicking the desired parameter or by clicking the Trend icon on the menu bar.
  • Page 24 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE Energy Consumption Testing Custom Limits. Custom limits can also be set with any of the measurement parameters. Custom limits help set limits based on various standards or test specifications. Figure 3-5. Custom limits.
  • Page 25 Connect the DUT using Tekronix BB1000 Breakout Box (BB1000.) See wiring diagram Figure 4-2. Use the 1A shunt on the PA3000 for better accuracy if the expected current is below 1A. Use the VLO Source connection for voltage. Using the VLO Source terminal for standby power measurements, moves the voltage low node to the source side of the current shunt.
  • Page 26 Inputs  Ranging  Current Range and then choose a suitable fixed range, based on the measurements made during auto-ranging. If the range is too low, a warning message will display. This will not harm the PA3000. The range should not be set too high, as this will compromise the overall accuracy.
  • Page 27 METHOD 2: IEC 62301 ED. 2.0 FULL COMPLIANCE STANDBY POWER TESTING (PWRVIEW SOFTWARE) The PWRVIEW software along with PA3000 can test the standby power using full compliance techniques of IEC 62301 Ed. 2.0 / EN50564. Measurements are made easy by using the PWRVIEW software and for making accurate measurements for full compliance standby testing.
  • Page 28 8. Enter the appropriate information on the respective pages of the wizard and then click through all of the steps to correctly set up the PA3000 for the test. If the input current is less than 1A, use the 1A shunt on the PA3000 for better resolution and accuracy.
  • Page 29 PA3000 Four-channel, Multi-phase AC/DC Power Analyzer DEMONSTRATION GUIDE DEMONSTRATION GUIDE Standby Power Measurements (IEC 62301 Ed 2.0) Figure 4-5. IEC 62301 Ed. 2.0 standby power test report. 11. After completing all of the settings, click the Start button. – The test will run for the time duration selected and will update all the required measurements in the left panel.
  • Page 30 Ranging. By default, the PWRVIEW software sets up the PA3000 current range in Auto-Up-Only. The Auto-Up-Only option ranges up the PA3000 until it finds the highest range where the input signal is not clipped. This helps with setting the best range for the test. Otherwise, if the expected peak currents are known, a manual range can be selected for higher accuracy.
  • Page 31 How to make Inrush Current Measurements TEST SETUP www.tek.com/inrush_ Complete the following steps to set up the PA3000 to take the inrush current measurements: video • Connect the DUT using a Tekronix BB1000 Breakout Box as shown in the wiring diagram.
  • Page 32 3. The PA3000 automatically blanks all the results that are lower than ten percent of the range. Blanking is continuously active and can interfere with recording the inrush event.
  • Page 33 Screen Save. The screen save function allows you to save the current screen from the PA3000. This can be useful for quickly capturing the inrush current readings. Press the SCREEN SAVE key to save the data as a .bmp file to a flash drive connected to the front panel USB connector.
  • Page 34 Use the same test setup as with the preceding PA3000 direct example. After making all of the power connections, connect the PA3000 to the computer with the PWRVIEW software installed using the supplied USB cable. Ethernet or GPIB can also be used, if desired.
  • Page 35 15. To reset the Min and Max values on the Trend graph, click the Reset icon. Tektronix recommends repeating the inrush current measurements by connecting the DUT several times to capture the highest possible peak value. The highest possible peak value occurs on the peak voltage cycle and it is important to capture this point for the maximum inrush current.

  • Page 38: Contact Information

    Find more valuable resources at TEK.COM Copyright © Tektronix. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks, trademarks or registered trademarks of their respective companies.