Answer / shantanu

the transformer action is not possible with dc of constant
magnitude as the flux will not be genrated btwn primary &
secondary winding ..

Answer / sivakumar

it mean we are applying dc(constant) current to coil ,voltage is zero across inductor(transformer winding) so there is a short circuit occuring so it draws high current

Answer / abhinav kumar

Ac voltage waveform is alternate so genrate a mutual induction and dc is direct current so it is not genrate mutual induction

Answer / bapan

If Dc supply is given to atransformer there will be no change in the flux with time.so,there is no emf induced in the primary and secondary winding and hence transformer action will not take place.

Answer / r. p. siroih

The transformer works on the basis of to transfer the energy (votage) to stepping down or up in alernative mode. In the DC power the current flow in streight line, so transformer can not transfer the voltage .

Whether the vacuum contactor requires Short circuit protection?If No,why?

0 Answers   Reliance,

If there is unit power factor in a power house and a capacitor bank used in a factory at resistive load . In this case, will there leading power factor in power house across that factory.

2 Answers  

how to calculate the power loss of cable?

1 Answers  

for 24000kv transformer what is the value earthing resistence?

1 Answers  

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1 Answers  

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0 Answers  

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3 Answers   MPSC,

what is the ground clearance of 400KV transmission line?

9 Answers   Power Grid, wbsedcl,

Any one can explaination about calibration with rotating sub standards?

0 Answers  

Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

0 Answers  

what is meant by mimic diagram ?where it is used ?plz explain briefly

2 Answers  

I have 320 Kva DG Set his KWh running is 77 , how i can calculate into electrical unit .

2 Answers   Anuj Enterprises, Schneider,