Answer / venkat

V, Power rating is given
at start s=1
Nr=(1-s)*Ns
ir=sE2/sqrt of (r2+sE22)
P=sqrt(3)*V*I* Cos pi
from which we get r2

A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate rotor frequency. A 50 Hz B 0 Hz C 4 Hz D 6 Hz

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Whatis the procedure for getting Electrical (light) licence while Iam a diploma holder in electrical Engg . I Compleated my one yr Apprentice training & worked as a junior engineer (ele) for 2 yr(contract basis).

1 Answers   TVS,

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IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

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What is emperical relation.Name few of them which are used in electriacl engineering?

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how do we calculate of transformer in va?what is calculation?

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How to check VFD outgoing voltage

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We have 2 no. 4MW DG set. and GEB supply. But, we running, only 1 DG set. when we done APFC/Power factor setting : 0.90, then winding temp. Low. but when setting done : 0.83, then Winding temp. increase. WHY Why ? ? ?, plz give me answer.

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What is meant by rotor?

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Can we transmit digital signal to long distance ?

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which gas is cost wise high?

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Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

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what is differnt between metering CTs an protection CTs

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