Answer / k.prakashchandra

It is the voltage at which supply source changes over to
another.In generator excitation ,intially the excitation is
with outside dc supply in flashes, as gen voltage rises to
70% ,the excitation changes over to gen output.

Differentiate between magnetic field and magnetic flux?

0 Answers  

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Diode is active or passive element?

14 Answers   Infosys,

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what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

4 Answers   KSK Energy, Reliance,

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what diff. between earth nd neutral?

3 Answers   NTPC,

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what is the formulae of calculating voltage drop?

2 Answers  

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1amps current equal to howmany electrons to be flowed?

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A single line diagram(SLD) and a purchase order of a 11/66kV switchyard of a power plant was given. In the SLD, only one lightning arrestor(LA) was shown, but the purchase order had need of 3 LAs. Is this correct, if yes, why?

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In ac motor,when dc supply is given what happend to the motor?

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-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

0 Answers  

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diffrence between alternating and pulsating field?

1 Answers  

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