Figure 17. Setting up Surge test parameters.
8. When you are satisfied with your specifications, close the Surge Test setup screen.
When you have completed the processes for selecting an existing motor ID, creating a new motor
ID (and Test ID), selecting tests to run, and confirming or modifying test parameters, you will be
ready to run the tests on your motor. Details for running tests automatically, semi-automatically, or
manually are provided in the next section along with other operating procedure information.
Surge testing through capacitors
The surge test is load dependent. Anything that adds capacitance to the motor or system under test
will create more load on the tester.
When surge testing a motor, all capacitors should be removed or the ground should be lifted.
Otherwise, the capacitors will absorb the surge pulse, preventing it from entering the coils.
Rotor effect on testing
When possible, remove or secure the rotor before testing. Rotors can affect testing results,
particularly if they move (even slightly) during testing.
Some issues can be erroneous high resistance imbalance in coil testing due to increased inductance,
inability to polarize for DA/PI testing,or frequency shift in one or more waveform values during
surge testing.
An erratic PP EAR will often result, and the shift could even trip the EAR limits.
Preparing For Testing
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