Answer / saad ikram

A

On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

0 Answers   Kwekwe Polytechnic,

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Explain the working of variable frequency transformer?

0 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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How much difference can there be between HT & LT KWH unit consumption at the same load?

1 Answers   DLF,

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what are the basic insulation levels & what its Unit

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what do you mean by class PS CT and what are technical details needed for calculating it?

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What is the difference between 2 wires RTD's and 3 wires RTD's.Kindly explain the wiring diagram.

1 Answers   QAFCO,

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I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

0 Answers   IOCL,

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How the neutral earthing is connected in DG alternator

6 Answers  

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what is the value will come when megger the phase to phase ,phase to neutral ,phasae to ground ?

3 Answers  

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Difference between HRG and NGR. Are they both the same thing

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we have one pumping station and 4.6 MW 7 no.s synchronous motors.so there is no required HT capacitor to improve power factor.But we have two no.s of 25 Mva power transformer connect to distribute the power for motors connect with 220 kv line.So i have required the HT capacitor to improve power factor at HT side i mean power transformer bus side.So please suggest how much HT capacitor banks required for same.

1 Answers  

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