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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2705

Explain about 3 phase motor fault current calculation with examples?

QTC,

2884

Initially motor starts with star connection ,after few timing changes to delta connection, why the motor should run continously in star connection,it gives high torque & low current?

3 9411

what is effect of reverse c.t connection on metering.

Cushman Wakefield,

4 15807

What are the advantages of D.O.L Starter in 3 phase induction motor?

4 9026

while running ,synchronous generator is being turned off.what will happen to the current flow??

1 2611

What happen if field ckt is open when a sailent pole alternator connected to infinite bus

Bhel, Nilkamal,

3 6581

without name plate detail of blower how we can find out the HP & Rpm ? the input voltage is 230v single phase

1 3961

What should be distance required in between two phase of HT cionductors in open area??????

3 10030

For a DY11 lighting Transformer on primary side whee to connect fourth lead? from nuetral or from ground?

Sabic,

3 6114

what heppend if we are connected u1-v1-w1 as a star point in the place of u2-v2-w2 in power genration

2185

Dear sir, By which formula u can calculate for a particular kv line there is a range of mw.

2082

R u say ,that is there is any flux in your room.

1 4827

In which connection the voltage will be more , in star or delta connected motor?

3 6688

why we do occ & scc test in transformer ?how we can do it ?

2 12215

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Un-Answered Questions { Electrical Engineering }

what is effect of leading power facter on the system and billing

2269

what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

1849

Why computer humming sound occurred in ht transmission line?

1057

What types of question are done for diploma students in aptitude test

1587

What is a compensator?

1029

why is the conservator tank painted white on the transformer

3143

How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

1977

Why air circuit breaker off due to power failure?

1153

What is highest size of HT motor like 11 kv or 33 kv,and how to make it 750 rpm.i think the size will be very big.any idea ? pl. reply..

1884

During regenerative breaking= A rotating magnetic field is reversed B slip is positive C torque is positive D slip is negative

2086

What are dependent sources?

1116

can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

1414

what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

2053

Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?

3299

Stator of 3-phase IM has 3 slots per pole per phase. If supply frequency is 50 Hz, calculate the speed of rotating stator flux A 1000 rpm B 500 rpm C 1500 rpm D 1440 rpm

2146

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