Answer / apoorv

THD is the sum of the power of all harmonic components present in the signal to the power of fundamental frequency. it represents the harmonic components present in the signal.

why rotor winding in induction motor is not earthed. normally we uses star winding in rotor .why?

3 Answers   Anglo Platinum, TATA,

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Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

0 Answers   Adani Power,

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In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

0 Answers  

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What Happen When output Short of transformer

2 Answers   L&T, Saber Corporation,

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why does a dc machine has high efficiency while working as a generator than as a motor ..

0 Answers  

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in dc machines in the armature nature of power is ac but why we take rasistance instead of impedance?

1 Answers  

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What is the function of an Auto reclosure relay. How does it work??

4 Answers   KSEB,

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what is the difference b/w permitivity and permeability

1 Answers  

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what is the current setting for different relay protection for transformer .

0 Answers   Crompton Greaves,

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america 60hz electric supply is used; but india it is 50hz; why? and if we use 60 hz supply what changeg has to be done or all the equipment has to be thrown which has rating of 50hz frequincy

1 Answers  

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What is the actual formula for transformer short circuit test? below i given rating of the transformer.. 1000KVA, pri 11KV, Pri amp 56A. %Z 5.95..

2 Answers  

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What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

0 Answers  

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