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

2817

Explain about 3 phase motor fault current calculation with examples?

QTC,

2998

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 9687

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

Cushman Wakefield,

4 16196

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

4 9347

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

1 2734

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

Bhel, Nilkamal,

3 6848

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

1 4131

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

3 10262

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

Sabic,

3 6407

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

2305

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

2182

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

1 4980

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

3 6960

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

2 12458

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Un-Answered Questions { Electrical Engineering }

how indusrial diesel generator work

1963

How to set the relay,,??

2142

what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

2028

What we mean by vintage of an engine+Generator?

2173

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

1618

What is earth?

2506

1.Z transform always lies around ? a) origin b) pole c) zero d) z=1. Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation . Note: this is not homework or related to any test. Thanks

2519

what is load vs Torque curve & why it is used?

2126

HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2634

what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

2025

draw 3 phase rectifier diagram

2260

What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2)

2885

i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?

1461

Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.

1983

explain transformer ct connection?

2113

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