In preparing to take insulation resistance readings on a main generator, the windings should be grounded for about 15 minutes prior to the test. For what reason should this be done?
A
allow accurate zeroing of the meter
B
help the windings to cool to ambient temperature
C
release any residual capacitive charge from the windings
D
help the windings to cool to the same temperature as the ground test connection
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Question 1 / 205eccefa4bacbc34ba4d4840f
Question 1 of 205eccefa4bacbc34ba4d4840f
In preparing to take insulation resistance readings on a main generator, the windings should be grounded for about 15 minutes prior to the test. For what reason should this be done?
In preparing to take insulation resistance readings on a main generator, the windings should be grounded for about 15 minutes prior to the test. For what reason should this be done?