i want to know that what is the eligibility critaria for ongc exam?

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what will happen when excitation of a synchronous machine is suddenly reduce to zero when it is running at full load..??

7 Answers  

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What is a thermocouple, and it working principle?

2 Answers  

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While elctrical load on DG,capacitor banks kept off why so? If capacitor banks on is their any effect DG?

4 Answers   IL&FS Infrastructure Leasing Financial Services,

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What is the differance between a converter duty transformer and normal power transformer?

1 Answers   Bhel,

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Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

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name of good resistance material

1 Answers  

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Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

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why core of transformer in square or rectangular why not in circle or ellipse if this what happens

2 Answers  

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why we cannot protect 100% winding of an alternator by using differential protection?

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what is the physical phenomenon because of which skin effect occurs ??

6 Answers   Power Grid,

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What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

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