Only after the steps above have been taken is the power pack output enabled.
9. Keep the power pack’s
Test (PTT)
button (or footswitch) pressed during the above checks. After the power pack’s
output is enabled, a red LED on the power pack will illuminate showing that the power pack’s test leads are
energized.
10. On the Baker AWA-IV, the
DC Tests
configuration window is active during DC tests. Ensure that the correct test is
displayed on the Baker AWA-IV screen.
11. Start testing by pressing the power pack’s
Test (PTT)
button (or footswitch) and slowly raise the voltage using
the power pack’s
Voltage Output Control
knob until the target voltage is reached. Both the voltage and
current display will be active while you ramp up the test voltage. If the voltage is ramped too quickly such that an
overcurrent condition occurs, the Baker AWA-IV will shut down the power pack and end the test.
Test results should immediately be visible on the Baker AWA-IV screen. If not, recheck the test lead connections and
all the switch settings. Also, ensure that the interconnect cable has been attached and is secure.
12. After the test voltage is successfully reached, the test timer on the Baker AWA-IV’s screen will start counting
down.
13. Continue to hold the
Test (PTT)
button (or footswitch) for the duration of the test. Have HiPot setting at
100µA/
Div
to start. Change the µA per division switch as needed to increase the sensitivity of the data acquisition during
test.
14. For example, if target voltage is reached and at 100µA/Div you see less than 50µA of leakage current, it is best to
switch the power pack to
10µA
per division for better accuracy. If less than 5µA is leaking at 10µA per division,
switch to
1µA
per division for best accuracy (this can be switched during the test).
Fig 21:
Using the DC Test screen during testing.
15. When the test
Time Remaining
clock runs down to 00:00, a message dialog appears telling you that the motor
needs to be discharged. Continue to hold down the
Test (PTT)
button (or footswitch) until instructed to release
it.
When the test timer counts down to zero, the analyzer will automatically stop the test, disable the power pack’s test
leads, and discharge the windings.
Using Power Packs with Baker AWA Testers
www.megger.com 27
Summary of Contents for PPX30
Page 1: ...Baker Power Packs PPX30 PPX30A PPX40 User Guide...
Page 2: ......
Page 6: ...Notices iv Baker Power Packs User Guide 71 061RC EN V2 www megger com...
Page 12: ...Baker Power Pack Introduction 4 Baker Power Packs User Guide 71 061RC EN V2 www megger com...
Page 24: ...Baker Power Pack Setup 16 Baker Power Packs User Guide 71 061RC EN V2 www megger com...
Page 74: ...66 Baker Power Packs User Guide 71 061RC EN V2 www megger com...
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