How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

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what is wave trap? please explain the working and principle

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Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

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I am in last year of Engineering.I want to apply for ONGC on GATE based score.They require Certificate of Competency as Electrical Supervisor.How can i get this certificate so I can apply for AEE(ELECTRICAL) in 2016

1 Answers   ONGC,

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I want Primary side delta and Sec side Star connection transformer . but i have received Star - Star transformer ,shall i use the same transformer by giving the only 3 ph on Primary side without Neutral connection on the Starpoint.

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1 no. 22 kV feeder is taken from state electricity board. 350 MVA is the S.C. MVA. now i am feeding this feeder to HT Panel having 2 outgoings which further supply to 2 Transformers. Can you please suggest me the type & rating of cables are 3 of these cables same? or they are different? please help...............

2 Answers   TCE,

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why permanent magnet generator have higher frequency of 400hz

3 Answers   Jaypee,

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What is meant by derating factor?

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What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?

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starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??

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Can we connect CBCT in the Busduct

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What is lc oscillator?

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