which type of effect of turbine and generator reverse power protection ?

0 Answers   NTPC,

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Can Superposition theorem be applied to AC Circuits?Can Thevenin's Theorem be applied to AC Circuit too?

6 Answers   HCL, NPCIL, Shivam, Vast,

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What happens if a three phase induction motor is suddenly single-phased while running? Which type of winding connection will be affected?

22 Answers   B4S Solutions, DRDO, FACT, SL Electricals,

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If u have Powergrid model question papers Please send to below mail ID rajutheprince@gmail.com

0 Answers  

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why the generating voltage in India is 11kV or why is it be transmitted as multiples of 11

34 Answers   ACC, Bhel, ECI Engineering and Construction, NTPC, SBL, Senthur Power Services,

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in three pin plug point, whats the reason that one plug point is bigger in size

4 Answers  

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IF we have 500kva transformer 11.0/0.415V, 50Hz. How to calculate the current on HT & LT side, how can we consider for its breaker (HT & LT both)? You are requested to solve the question herewith.

3 Answers   Bhutan Power Corporation,

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Do closed loops systems require manual input?

0 Answers   Ericsson,

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when transformer oil should be filtered/tested?

3 Answers  

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How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

8 Answers  

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Why IGBT is very popular nowadays?

3 Answers   TVS,

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

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