5 — Using Power Packs with Baker DX Testers
The Baker DX testers can test up to a 1000 HP, 4160 V, 1800 RPM machine depending on the model used. When
used with a power pack, the Baker DX is able to test higher-voltage motors. The Baker DX testers work with all
Baker power packs.
The Baker PPX30A power pack provides testing capability for low-impedance devices such as armatures, interpoles,
and DC field coils. The Baker ZTX functionality is built into the PPX30A and is commonly used for span and bar-to-
bar testing.
NOTICE: Review the instructions for stand-alone operation of the Baker DX before attempting to operate with a
power pack.
Review all safety information provided with the equipment and presented in “User Safety and General Operation”
before setting up or operating.
Ensure that test leads not used during a specific test are disconnected and safely stored away from the unit under
test.
WARNING: For high-voltage testing, ensure that all personnel are away from the device under test,
and not in contact with either the load or the test leads. Follow all testing best practices and take all
precautions to avoid injury or death from electrical shock.
Some test leads will be open during the test and can be at the same voltage potential as the winding.
Take all precautions to avoid touching these leads to prevent injury or death from electrical shock.
After completing high-voltage tests, ensure that the motor windings are properly discharged before
removing tests leads or contacting the unit under test.
NOTE: DA start/stop and HiPot/Step Test times, ramp rates, and other test settings are specified in the System
Settings mode. Refer to the
Baker DX User Guide
for more information on system settings.
Combining a Baker DX Host and Power Pack for Testing
To completely test a higher-voltage motor, functions from the Baker DX host and a power pack are used together.
The test data collected by both instruments combines into a single test record in data storage.
Table 17:
Leads or fixtures used during testing.
Tester
Configuration
Test Type
Test Leads Used
DX Host
Resistance, inductance, capacitance.
Low-voltage RLC tester leads.
DX Host
DC tests: Megohm, DA/PI
High-voltage tester leads.
Power Packs
DC tests; only HiPot/Step Voltage and
Surge run from Power Packs. Surge testing
in three-phase mode.
High-voltage power pack leads.
PPX40 leads require manual configuration
for three-phase testing.
Power Packs
Surge testing in single-coil mode.
High-voltage power pack leads. Leads 1
and 2 only for single-phase testing.
Using Power Packs with Baker DX Testers
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Summary of Contents for PPX30
Page 1: ...Baker Power Packs PPX30 PPX30A PPX40 User Guide...
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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...
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