In three phase, phase to phase voltage is 440 Volts, but the three phase motors are designed for 415 Volt, 50 hz, why

1 Answers   Shree Ram, Shriram, Sri Ram,

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what objective books are good for preparing for PSU's?

3 Answers   NTPC,

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what is mean by restructuring power system?

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In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

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what is difference between induction motor&servo motor.what r types of servo motor?how it works?

1 Answers  

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Why do not we prefer non conventional sources of energy to conventional sources?

0 Answers   Nabard,

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If I want to lift the water at a height 50m from ground level through two inch(diameter) metal pipe then what is the capacity of motor pump is required? is it possible in single phase supply or not?

0 Answers  

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what is the earth resistance ?

5 Answers   Bhel, Cummins,

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suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current , the rating of motor is 1HP ?

5 Answers  

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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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1hp single phase load = howmuch 3 phase load

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Is the force acting between two parallel conductors of infinte length carrying AC of frequency 50Hz remians constant with respect of time? If not then what would be the frequency of the force acting?

1 Answers  

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