11. |
HV test should be conducted if the insulation resistance is ____________ the value defined in IS 4722.
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Answer:
Option (a) |
12. |
The high voltage test of three-phase induction motor shall be applied between the
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Answer:
Option (c) |
13. |
Which of the following is/are not the test condition of the HV test on three-phase induction motor?
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Answer:
Option (d) |
14. |
Which of the following is/are the specification of the HV test on three-phase Induction motor?
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Answer:
Option (d) |
15. |
In the HV test of three-phase induction motor, The full test voltage shall then be maintained for ________ .
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Answer:
Option (a) |
16. |
Normally the test voltage applied in HV test of stator winding of three-phase IM is
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Answer:
Option (a) |
17. |
Normally the test voltage applied in HV test of rotor winding of three-phase IM is
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Answer:
Option (a) |
18. |
The test voltage applied in the HV test of rotor winding of three-phase IM when it is subjected to be reversed or braked by reversing the primary supply while the motor is running is
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Answer:
Option (c) |
19. |
What should be the reason? Motor fails to start
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Answer:
Option (d) |
20. |
What should be the reason? At the start, only thermal overload operates.
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Answer:
Option (d) |