what is the function of choke in tube

1 Answers  

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What are the types of Transformer? Name them.

9 Answers   Bhel, HSL, NTPC,

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DIFFERENCE B/W NEUTRAL AND EARTH?

2 Answers   Genesis, IBC,

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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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HOW TO IDENTIFY THE RELAYS WHICH APPLICATION IN WHICH RELAY USING?

1 Answers   L&T,

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whats relation b/w motor current & friqency

1 Answers  

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static chagre

0 Answers  

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When motor stater and roter air gap do big then what will moter.

3 Answers   Intas,

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what is NANO TECHNOLOGY?

2 Answers  

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why we measure ouput of transformers in kva.

1 Answers  

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is there any pottential in neautral?

3 Answers  

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What is the difference between Earthing and Neutral?

13 Answers  

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