Tektronix PA3000 Installation and operating manual

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
PA3000 Four-channel,
Multi-phase AC/DC Power Analyzer
––
HOW-TO DEMONSTRATION GUIDE

TEK.COM | 1
PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
Efciency Testing Single Phase Applications
This example demonstrates a simple method to make efficiency measurements on an external
AC-DC power supply that is rated to the level VI efficiency standard.
Similar principles can also
be applied to efficiency testing on any AC-DC power
supply, DC-AC inverter, and other related
converter including solar inverter
and UPS systems.
TEST SETUP
Complete the following steps to setup the efficiency measurement on an AC-DC power
supply with the PA3000 Power Analyzer:
1. 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.
(See Figure 1-2.)
2. The breakout box taps in to the current signal and measures the voltage across
the input
terminals. The breakout box makes it easier and safer to connect the input AC signal
on the
DUT using the 4 mm safety leads provided with PA3000.
3. Connect the output DC terminals on the second channel of the PA3000 using the provided
safety leads. The current shunt on the PA3000 is connected in
series with the output load;
the voltage channels are connected across the
positive and negative terminals of the power
supply as show in the figure.
4. After making all of the connections, use one of the two methods to make
the efficiency
measurement.
PA3000 POWER ANALYZER (FRONT PANEL)
AC LINE
BB1000-UN
BREAKOUT BOX
Example test configuration and measurement results for testing AC/DC power supplies and LED drivers.
Time
Volts/Amps
Time
Efficiency
Vout
Time
2380 ELECTRONIC LOADPOWER SUPPLY UNDER TEST
Figure 1-1. Efficiency Testing setup for AC-DC Power Supply.
WATCH VIDEO
How to Make Efficiency
Measuremensts on
AC-DC Power Supply
www.tek.com/
effciency1ph_video

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
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
• PA3000 Power Analyzer • BB1000 Break Out Box
• AC-DC Power Supply (DUT) • Electronic Load (Keithley 2380) (Optional)
• 4mm Safety Leads • AC Source (Optional)
Figure 1-3.
Efficiency
measurement
on the PA3000.
Figure 1-2. AC-DC efficiency measurement wiring diagram.

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
This procedure can also be used for testing efficiency on other applications
such as UPS systems, LED drivers, or DC-AC inverters.
1. Set the PA3000 to the default configuration:
–
Press .
– Scroll down to User Configuration and press .
– Select Load Default Configuration, and then press to confirm. The PA3000 will load
the defaults and display a confirmation screen. Press
and then return to the Main
Menu by pressing .
2. In the Main Menu, go to Measurements, press , and then select the
desired
parameters for the AC input signal.
– The first channel will be represented as Group A on the yellow bar at the top of the screen.
– Select the desired measurements: Vrms, Arms, Watts, VA, PF, Acf,
Athd, and A Harmonics.
3. Select Group B representing the second channel on the PA3000 by pressing
the right arrow
key on the left panel of the PA3000.
4. Select the desired measurements for the DC output such as Watt, Vdc, and
Adc; deselect
any preset measurements that are not needed.
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.
6. Power on the DUT from the AC source; an appropriate load can be applied to
the DUT at this point.
– The Results screen should start updating the real time measurements.
7. The Math function can be used for calculating efficiency. Press to set up
efficiency formula.
8. On the Math screen, press the MATH soft key.
9. Select the desired function from the list and then press to enter the
options.
NOTE: The Edit Function can be used to edit any specific math formula. While
in the edit
function, press to enter the Help menu for help in formatting the
function or refer to the
information earlier in this manual.
10. For the efficiency calculations, enter (CH2:W/CH1:W)*100 and then press
. Press
to go back to Math menu where the function can be
renamed and units can be added, if desired.
11. Go back to the Math menu and scroll down to the newly edited function
and enable the
function by pressing . Select all functions that need to
be displayed on the screen.
12. Press to view the Results screen.
13. To view selected math formulas, press .
14. To view math formulas along with other results, press to view the
Results screen and
press multiple times until the math window appears
at the bottom of the screen.
15. PA3000 Power Analyzer is now ready to take efficiency measurements.
Optional Steps when using Keithley 2380 Electronic Load
16. Set the Keithley 2380 Electronic load in Constant-Current (CC) mode by pressing the
CC key on the front panel and set the value for full load current based on the output
specification of the power supply under test. Press the on/off button.

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
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.
19. Repeat this step at 75%, 50%, 25% and 0% load by entering those values on the
front panel of the 2380 Electronic load.
20. Let the Power supply stabilize for five minutes between each load step change.
FURTHER SETTINGS IF REQUIRED
Data Logging. The logging feature allows you to log data over time for prolonged
efficiency
testing involving load and source sweeps. Use the DATA OUT key to log data to any compatible
flash drive connected to the front panel USB
connector. The actual logging interval can be
changed by pressing and going
to Interfaces USB Host Data Out. The log file will be
saved as a .csv file.
Waveforms and Harmonics. To monitor AC input waveforms and harmonics, use
the
or key respectively. Switch between channels by using the arrow keys on the left panel.
Various options for viewing waveforms and harmonics can
be selected from within the Graphs
and Waveforms menu.
Figure 1-4.
Harmonic bar
chart on the
PA3000.
2380 Electronic Load Programming. The ‘List’ mode on 2380 Electronic Load can be
used to automate efficiency testing.
• The load can be set up to automatically step through a set of different load values.
The load can be programmed to execute the list with a fixed time at each step.
• Alternatively, the load can be triggered via a hardware, external trigger or a command
from a controller.
• For more information on how to setup list mode on 2380 Electronic Load, refer to the product
user manual (Document no: 2380-120-60-901-01 Rev. A)

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
METHOD 2: EFFICIENCY MEASUREMENTS ON SINGLE PHASE AC-DC POWER
SUPPLIES. (PWRVIEW SOFTWARE)
The following steps describe the process for setting up the PWRVIEW software
with a PA3000 for efficiency measurements.
WHAT YOU WILL NEED — METHOD 2
• PA3000 Power Analyzer • PC with PWRVIEW software installed
• AC-DC Power Supply (DUT) • USB cable
• 4mm Safety Leads • Electronic Load (Keithley 2380)
• BB1000 Break Out Box • AC Source (Optional)
Figure 1-5.
Efficiency
measurement
with the PWRVIEW
software.
1. 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.
2. Open the PWRVIEW software by double-clicking the desktop icon.
3. Click the Add button to connect the PA3000. All available instruments will be listed
in the selection panel.
4. Select the desired instrument (the PA3000) and then click Connect.
NOTE: There are various default applications and compliance tests on the left
panel
from which you can select. This example discusses the AC-DC LED Driver
efficiency
measurement. This method can also be used for similar AC-DC power
supplies
5. Select LED Driver Efficiency under the Applications/Test section on the left
panel and then
click the Wizard button. The wizard helps with wiring and shunt selections. A 1A shunt or
30A shunt
can be selected based on the peak input and output currents.
6. Make changes on the setup wiring as suggested.

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
7. Click Finish when done, and the page will direct you to the Efficiency Setup tab.
8. Verify the instrument and group information and then click the check box for
the
Measurement Efficiency. PWRVIEW is now ready to take efficiency measurements.
9. Click the Measure tab page at the top and then click the blue Start button.
The
measurements will start updating.
10. To add more measurements or change other settings, such as range and filters,
go to the
Setup tab and select the desired settings.
NOTE: The measurements must be stopped to make any changes on the Setup
page.
Stop the measurements by clicking the Stop button on the bottom of the
Setup page.
Optional Steps when using Keithley 2380 Electronic Load
11. Set the Keithley 2380 Electronic load in Constant-Current (CC) mode by pressing the CC
key on the front panel and set the value for full load current based on the output
specification of the power supply under test. Press the on/off button.
12. Generally a 30 minute warm-up period is required by the standard, before any efficiency
measurements are made on an AC-DC Power Supply.
13. Check for power stability measurements for five minutes on the input of the Power Supply
and then log an efficiency measurement at 100% load.
14. Repeat this step at 75%, 50%, 25% and 0% load by entering those values on the front
panel of the 2380 Electronic load.
15. Let the Power supply stabilize for five minutes between each load step change.
FURTHER SETTINGS IF REQUIRED
Waveform, Harmonics, and Trend Chart. In the measurement Grid, you can view
Waveform, Harmonics, and Trend charts by clicking the respective icons on the menu bar.
Figure 1-6.
Efficiency
Trend Chart.

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PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
• Waveforms in the PWRVIEW software are constructed using the harmonic data collected
from the power analyzer. 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.
• The Harmonic bar chart can be enabled for all voltage, current, and watts measurements.
Up to 100 harmonics can be selected throug the setup screen. Hovering over any harmonic
bar will display the absolute value and percentage of fundamental for that harmonic.
• The Trend chart can be activated for any measurement parameter by either right clicking on
the desired parameter or by clicking the Trend icon on menu bar. The Trend chart can be reset
by using the Reset button on the menu bar.
Data Logging. Recording data is important for most efficiency measurements where load and
source sweep is required.
Figure 1-7.
Logging setup.
• To record data using PWRVIEW, click the Record button on the menu bar. The software
will start recording all the selected data including formulas and limits.
• To change the data logging rate or to set the total log time, click the down arrow on the
Record icon to open the data logging setup. Here you can select the desired logging
duration and interval.
• To stop the data logging, click the Stop button.
• All the recorded data is stored in a database on the local computer. To access the data, click
the Results tab and then click the Measure icon. The dialog box will present all the archived data.
• Select the desired data set and export to either an Excel or a .csv format.

8 | TEK.COM
PA3000 Four-channel, Multi-phase AC/DC Power Analyzer
Efciency Testing Single Phase Applications
DEMONSTRATION GUIDE
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.
Custom limits.
• To set custom limits, either right-click the desired measurement parameter or click the Limits
Setup icon on the menu bar. Stop the measurement update to
set up custom limits.
• Custom limits will appear as a separate tab on the measurement grid. The result column will
display red fonts if the limits are failing. Hovering over the results will display the limit function,
limit value, and relative value.
2380 Electronic Load Programming. The ‘List’ mode on 2380 Electronic Load can
be used to automate efficiency testing.
• The load can be set up to automatically step through a set of different load values.
The load can be programmed to execute the list with a fixed time at each step.
• Alternatively, the load can be triggered via a hardware, external trigger or a command
from a controller.
• For more information on how to setup list mode on 2380 Electronic Load, refer to the
product user manual (Document no: 2380-120-60-901-01 Rev. A)