1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

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what is the suitable voltage of transmission line to transmit 10000w power through 250 km. (a)11kv (b)33kv (c)66kv (d)132kv ]and please tell me whats the logic behind it

7 Answers   ONGC,

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why should be the frequency is 50 hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50

3 Answers  

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State the types of distortions in amplifier?

0 Answers  

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What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

0 Answers  

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what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

0 Answers   BARC,

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how a synchronous motor is used as a resistor,capacitor and an inductor?

3 Answers   Technocon Services,

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IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

10 Answers  

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which starter is used for synchronous motor

18 Answers   APTransco, IBM,

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what is the purpose for open delta connection in potential transformer

2 Answers  

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Why overhead transmission line in triangular shape?

2 Answers  

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what is the working of loss of excitation relay (40G)? how it is work?

1 Answers  

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