Electrical Engineering Interview Questions
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Hi frnds :) plz tell me that i have 100 KVA 3 phase generator so by thumb rule 100*1.4 = 144 amps and generaly we can operate at 80% load...so it will 144*0.8 =112 amps.... so now i m confused about single phase load.....if we use that generator only for single phase the that 112 amps is total single phase load or i can give 112 amps at red 112 amps at yellow and 112 amps at blue.... i mean that total single phase load that 100 KVA generator will take is 112+112+112=336 amp ??

FWO,

2 3745

Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

2301

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

Manipal Hospital,

1545

what is the difference between 230v and 115v?

Bhushan Power Steel,

1 4755

What is Synchronization of generator,where and how it is achieved.

HEC,

1 3763

How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 3431

why earth wire is needed in a wiring system

1 3039

What is the difference between Neutral And Earth ?

Ambuja, Reliance,

2 5482

What is boost transformer in railway??

2 3051

How to select a cable size according to load

Red Bull,

1 3763

What is the knee point voltage of CT-100/5,15VA,5P20 ?

ERL, NTPC,

3 6333

In CT, burden is 15 VA and protection 5P20,CT ratio is 100:1 then what would be the knee point voltage ?

ERL,

2 4670

what is difference between ac voltage and ac current

TATA,

3 6468

My system is 22kv/3.3kv transformer. client is asking to use NGR, but as we have dedicated Neutral Earthing systems which has a value less than 1 Ohm. So i want solid comparision. Why i should not use NGR as my system is already protected.Can any one help me to get out of this.how should i reply on basis of some great comparision and calculations. Please help

Ariel,

2 3861

What is cable gland,why does use for?

ABB,

5 9461


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Un-Answered Questions { Electrical Engineering }

wheather the size of windings in motor and generator are the same

1585


what reactive how to maintain

1482


Define steady state error.

724


What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

1755


Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

1332






The slip during plugging operation is given by= A 1-s B 2+s C 1+s D 2-s

2495


What is online and offline ups? how does it works?

1708


what is the string efficiency

4598


I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

1752


what is static frequency converter?what is the function...of sfc...?

1841


What is the simplest formula to calculate the rotor diameter of a synchronous generator?

1983


What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

3247


defination of lines

1620


i need to give section engineer (electrical engineer) for RRB. Please suggest some book

1519


Classify drilling machines.

763