TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

0 Answers   Bhel, NTPC,

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why two contacts(in series) are using in closing circuit

3 Answers  

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What is the difference between IGBT and TRIAC?

3 Answers  

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If a high resistance fault occurs,then what are the changes will happen in the system?

0 Answers  

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can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

0 Answers   DEWA,

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If single phase supply is 220v. then why three phase supply is 660?

2 Answers  

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in case dc we mark as + ve & -ve..but in case a.c. we mark as ph&N...Y LIKE PLZ TELL ME

4 Answers   NPTC, TCS,

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why we choose 50 or 60 hertz not other value for the power system?

4 Answers  

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definition of fault level in powersystems?

4 Answers  

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If one lamp connect between two phases it will glow or not?

9 Answers  

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What are the necessary conditions for production of rotating magnetic field.

4 Answers   BARC,

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what is the problem in manufacturing transformer with 0 degree phase displacement.???why alwasys go for DYn11 or DY5?Whys not DY0 i.e zero degree displacement between primary and secondary side vectors?

3 Answers   Bhel, dpdc, Prime Electrical,

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