Answer / virendra

It result in to over fluxing & saturation of core of
transformer . overheating of Winding of transformer & hence
tripping of Breaker from transformer protection

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

3 Answers   NTPC,

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what is the working principle of three point starter of dc motor?

1 Answers   Ashok Leyland, Cap Gemini, Infosys, Just Dial,

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if a motor has 1500rpm then what will its HP?

3 Answers   Willdale,

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what happens when dc supply is given to the transformer?

3 Answers  

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why middle phase should used for earth fault and other phases used for over current in overcurrent and earth fault relay?

7 Answers   ABB, ONGC,

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WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT

0 Answers  

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How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

0 Answers   cpgn,

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In generation,transmission and distribution voltage frequency is either 50HZ or 60 HZ;why are only these frequencies?

2 Answers  

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How to put breaker in service / test position.

1 Answers   KSEB, L&T, Siemens,

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what is difference between ac voltage and ac current

3 Answers   TATA,

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Whether earthmat designning is done only for sub station or it can be done for multy residential complexes also? What is the size, type & arrangement of the earth grid to be done?

1 Answers  

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In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 Answers  

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