Answer / rekha.k.m.

It's 800A set at 665A

Answer / santosh k b

800 Amps( Rekha k m answer ok)

Answer / thiru arasu

the above one is right,.

Answer / athar abid

As we Know that

KVA = Sqrt 3 . Voltage(V) . Current(I)

Now for 400V (Phase-Phase) syayem

I = 500KVA/(1.732 * 400)
=500*1000/(1.732*400)
=721.7 Amps

There is no standard breaker available with this rating, so
take one step above rating i.e. 800Amps

Hope its clear.

Regards
Athar Abid

Answer / krishna reddy

2000Amps

how am i achived model paper to prepratio for bhel exam

2 Answers   Bhel,

What is meant by analogous system?

0 Answers  

how to convert single phase supply to 3 phase or 3 phase to single..?

7 Answers   Wipro,

roles of owslaw explain?

3 Answers   BSNL,

what are the ''pitting rings''and how cn they be controlled in a series generator

0 Answers  

what is feeder bay?

0 Answers  

What is the In door to Out door Sub Station.

5 Answers   L&T,

what material used made for the resistance,for the purpose of zero temperature coefficient?

2 Answers  

what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

0 Answers   Jindal,

what happens when the supply frequency to the tube light is reduced to 25Hz....?

5 Answers  

what is the difference in inductance and resistance.both oppose the flow of current but how.resistance having + ve power in both cycle while inductance having both power.

5 Answers  

What is power focter ?

6 Answers