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Electrical Engineering Interview Questions

what is meant by lagging & leading current

TATA,

3381

what maximum load will take a aluminum cable of 50mm 4 core.

7538

what is inductive voltage transformer? what is its application and how it differs from capacitive voltage transformer?

1278

what is a bus post insulator? explain its application in a substation.

10867

what is bus post insulator and its applications in substations

13046

what are inductive and capacitive voltage transformers.what are their applications

1106

what do you mean by lagging and leading current.explain in detail.

3199

what are the compensations considered while designing a transmmision line.

2300

why vaccum circuit breakers are preferred over m.o.c.b

2787

why are we using multiples of 11 in substation.

3351

why we measure ouput of transformers in kva.

2988

what do you mean by star point.its importance in ct & pt

4052

for any load, what happen if we use the cable rating above its normal rating

2718

can anyone plz tell me in 3 phase induction motor, whare we use STAR CONNECTED MOTOR and whare we use DELTA CONNECTED MOTOR

3315

What is the difference between split AC and Casste AC?

NTPC,

15906

Un-Answered Questions { Electrical Engineering }

how braking & making capacity of circuit breaker are calculated?

1424

If o/p power is doubled by how much does the sound increase

255

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

2874

What are stable systems?

237

what is differnce btwen lll and lllg faults

1107

what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....

4916

What is open loop and control loop systems?

218

what will happen if i connect 12 volt battery with 24 volt battery charger.

1093

What is the difference between solid grounding and impedance grounding?

1130

explain the types of drives

1153

how we decide the require size is this for a known current at fuu load?

1048

How 48-relay (incomplete sequence) functions?

2994

What is dynamo function in DG sets and draw block diagram?

1147

What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.

823

how to electrically make connection to ferroli GN2N?

982