Answer / maruthi gh

what he said is write

how can we can take BDV test in transformer?

5 Answers  

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why do we need the body earth?

4 Answers  

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We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?

2 Answers   Birla,

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What is primary distribution and secondary distribution of ac power?

3 Answers  

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Why the frequency of a system is changed if the load changes?

5 Answers  

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What is the difference between earth resistance and earth electrode resistance?

1 Answers  

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what is the name for a meter/tester to measure the paint quality in electrical panel or wall?

1 Answers  

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how can we convert 48V dc into 12 V dc? Any standard device for it??

2 Answers  

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Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?

1 Answers  

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What is a differential amplifier? Also, explain cmrr.

0 Answers  

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What is plugging as applied to an induction motor?

3 Answers  

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what will happen to give a dc supply in ac motor?

2 Answers   ABC, Indian Navy,

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