Answer / narayanan

protect to the transformer,
human safety
short circuit for protect the transformer
eb line neutral earthing is not work to support neutral
earth
constant voltage

Answer / balachandra

Neutral grounding and its advantages. ... Neutral grounding provides protection to personal and equipment. It is because during earth fault, the current path is completed through the earthed neutral and the protective devices (e.g. a fuse etc.) operate to isolate the faulty conductor from the rest of the system.

Answer / sonu

to protect transeformer from over voltage during unsymmetrical fault
adv> keep voltage constant of healthy phases

define ac reactor? thier application;

1 Answers  

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i want to put single phase load on scott connected transformer,eventhough how to balance the transformer.

0 Answers  

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what is meant by unity power factor?unity means one why dont call 2,3,4......?

6 Answers  

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what is power factor

4 Answers  

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what is reverse power relay brief explanation and in b/w where it is connected

0 Answers  

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in transformers for ex. 100mva and 400kv the secondary current is about 420 amps but for selection of bushing the capacity of selected bushing is 2000A why there is such big difference ?

2 Answers   ABB,

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difference b/w timer and counter

1 Answers  

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Why induction motors draws higher current during starting condition?

1 Answers  

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hello friends..... any one have papers or any study materials?sail ,hpcl...?

0 Answers  

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Residual voltage & residual current used in which protection?

5 Answers   Qatar Gas, Reliance, Transformers and Electricals,

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does frequency affects the load? if yes elaborate it.

1 Answers  

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how to select a cap,when a fan is required 2.5 micro ferad cap,then how we know about 1 hp motor?

1 Answers  

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