How many earthings are required for motors?

3 Answers  

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What is 100% protection of generator? Why 95% protection is used not 100%?

9 Answers   NTPC,

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Transmission line design. Say, I have a 1MVA generator and 2 transformers that will have the same load. What would be the proper rating of the trasformers? Is it safe to say, that I will simply divide the total rating of the generator?

1 Answers  

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when neutral will carry the current?what could be the magnitude?

7 Answers   Voltas,

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If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

0 Answers  

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What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

1 Answers  

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While performing load test on DC SERIES MOTOR, does the voltage decrease slightly. Why?

2 Answers  

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Advantages of short circuit and open circuit tests of a transformer?

3 Answers   Engineering,

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why do we prefer VCB over OCB? what are the advantages of Vaccum Ckt. Breaker over Oil Ckt. Breaker?

2 Answers  

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What is meant by coupling capacitor?

0 Answers  

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Why saturation region slowly shifted in the left side?

0 Answers  

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what is the use of earthing ?

8 Answers   Electrical Tech,

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