why phase to phase voltage is 400v while phase to neutral is 220v?

1 Answers  

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IF i have switchgear with busbar current rating of 1000Amp 35kA then is it necessary to have outgoing breaker kA rating to be equal to busbar kA rating?

6 Answers   L&T,

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why do we prefer VCB over OCB? what are the advantages of Vaccum Ckt. Breaker over Oil Ckt. Breaker?

2 Answers  

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how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.

0 Answers  

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I have 380.KVA DG set how to Calculate the units from DG.

2 Answers   Ozone Pharma, Sperry Plast Limited, Sterling,

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What is the difference between the relay and the circuit breaker?

0 Answers  

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what is the function of garing capacitir in SF6 circuit braker?

1 Answers  

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how to select cable size for three phase?

1 Answers  

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If two induction motors A and B are identical except that the air-gap motor 'A' is 50 % greater than that of motor 'B', then

2 Answers   Lanco,

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how to read AWG n how to convert AWG reading into mm?

1 Answers  

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what is the principle of motor

6 Answers  

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what is the switching substation

2 Answers  

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