Answer / k.prakashchandra

This test is for life evaluation / extension programme.The
dissipation factor (tan delta) represents the gross defects
and overall dielectric loss in the insulation.The first test
may be conducted after 10 years and subsequent tests may
conducted every 5 years , and if results are poor, after a
short period to watch the further deterioration

while buying 30 kva on line ups for 1 phase ouput, we ave to calculate the number of batteries for 2 hours back up? how to calculate the ah rating and number of batteries

1 Answers  

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why it is in star to delta form of Synchrounus generator and delta to star form of Generator Transformer (or step up transformer)

1 Answers  

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two transformers of the same type, using the same grade of iron and conducting material, are designed to work at same flux and current densities, but the linear dimension of one are two times of the other in all respects. The ration of kVA of the two transformer closely equal to................? options: 16, 8, 4, 2

2 Answers   Vizag Steel,

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why so voltage is same in parallel circuits and current is same in series ckt?

3 Answers  

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Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.

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Welding machine

1 Answers   CEL,

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why restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

1 Answers   GMR,

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To check the earth condition (In plug points); the voltage between earth and Neutral is in below 5 volts. Is it correct

6 Answers  

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What do you mean by creepage distance?

4 Answers   Amara Raja,

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In what condition the HT fuse breakes?

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what is self capacitance of inductor

0 Answers   Bhel,

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I want the details about BHEL company examination.Can anyone able to help me please.

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