Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in 33kv/11kv stepdown t/f why should we use Star point

2 3447

When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.

BWSSB,

1 2569

difference between local breaker backup relay or backup protection relay ?

1 2720

Does VT metering core can be used for synchronizing.

Shrishti Power Technologies,

1 2529

Please explain, how to test vector group of tranformer(Delta y1) . Thank

PGCB,

1669

how to test YNyn0 vector group in transformer?

3824

Master trip relay code no

TR,

2 3725

if reactive power become zero in transmission system then what effect on system.???

Sedemac,

3 5647

Why double earthing is required ?

1 4008

What is the meaning of dedicated earthing?

Dabur,

2101

The basis on which voltage selection of motor is done i.e. either HT or LT.

DAE,

1 3266

What is cogging and crawling phenomenon in motor.

DAE,

2 4317

I want to know that a 160kva diesel generator contains capacity of 160kva on each phase like R=160 Y=160 B=160 total RYB=480kva or it is total capacity of all there phases like RYB=160kva ... thanks in advance ...

jlpl, JP Saraswat Engineers,

2 3302

what is inverter and converter

Hindustan Syringes and Medical Devices,

1877

If age of Raju is 20% less than Sanju,then age of Sanju is how many % more than Raju

Tech Mahindra,

2 4376

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Un-Answered Questions { Electrical Engineering }

bus bar design conditions and sizing pls tell me quickly

1866

what is meant by power and distribution transformer ?

1939

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

2231

What is slip in an induction motor?

1107

What is the difference between electronic regulator and ordinary rheostat regulator for fans?

975

I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz

2050

how many types of motor can be used in washing machine

2078

WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?

2244

is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.

1743

Is it possible to operate a synchronous 2-poles turbogenerator with a still-in-place faulted bar but electrically disconnected ???? If yes, should I act on the other phases as well ???

1941

what is the sludge current

2069

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1802

What is the name of the winding from which the supply is taken for load connections?

1030

we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1874

how to set relay setting? and example calculation...

1990

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