Please Help Members By Posting Answers For Below Questions

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What is reason of rating of transmission line multi pal of 11
like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power
system ?

705

please tell me how a surge protector work on a DC 48Volt.?
please describe briefly.

294

Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will
be the effect if secondary is used for earthed system.

1669

What size cable (based on voltage drop) is required to
supply a 40 A three phase boiler if the wiring system is
75V single insulated cables installed in non-metallic rigid
conduit 56m from the main switchboard? Voltage drop in the
consumer's mains is 8V.

316

what is the formula of starting current of 3phase and 1 phase
motor???

402

I have an existing old MCCB. ABB Model SACE, the rating
are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800
amps at 45 deg C. I need a circuit breaker for my 3 phase
motors, 380 volts 60 hz. the supplier required the minimum
ampacity of the breaker to be 911 amps. can i use this
breaker with rating of Iu =1250 amps but Ith = 800amps
maximum?

496

In case of generator when we consume more power produces by
it why load on generator increase and starts sound more.
and how it is adjusted..

259

How can we calculate the motor frame sizes?

1656

how to calculate the step resistance for slipring induction
motor,how you deside the no of step for that?

436

in single phase converter, the no.of scr's conducting during
overlap
a)1 b)2 c)3 d)4

398

What is the field weakening mode of a ac motor?

517

why Induction Generators are not "Black start" ?
and apart from WTGs where this types of generator are generally used?

898

HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO
ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS
CALCULATIONS)

329

I am B.E.electrical engineer having 7 years of experience
in Transformer testing upto 315 MVA.I want to khow how I
can get the 'Electrical Valuer' License.

491

Do inductive loads have distorted current waveforms ?