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

why commutator is attached with only dc macine

8 Answers   ONGC,

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I HAVE CONSUMER WHOSE POWER FACTOR IS 65% I WANT TO INCREASE IT TO 98%.HOW TO CARRY OUT?

7 Answers  

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why we used.c source in the field of the alternator , why not a.c source.

1 Answers  

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In transmission line 11kv,33kv etc are rms values are peak or others??

1 Answers  

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Why transformer is not rotating?

20 Answers   BARC, Nerolac,

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How core saturation effects the secondary voltage (whats the theory) of a current transformer in service?

1 Answers  

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what is the use of vector group in transformer. means what r the application of various vector groups?

5 Answers  

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which type of insulation are used on 132kv transmission line

4 Answers  

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what is the path of thunderlightening? once both a buffalo and a person were standing 5m apart but lightening hit and killed buffalo not person?

0 Answers  

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You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

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Explain how Hormonics will effect the Electrical System?

5 Answers  

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What is the general system requirement of alternator?

0 Answers  

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