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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??

2 6842

In 3phase power= Root*3*v*i*cos@ What is the power in 2phase....??? and Derive it

Essar,

3 10161

What is the difference between KV,KVAR,KVA,KW?

L&T, PowerHouse, YUI,

6 59282

how to calculate voltage drop in long distance cable? for an e.g lamp of 12 volt ac ,300watt is 90 meter away from supply i.e (x'mer 230 v / 12v)and i m getting 8 volts at lamp terminal ....

1 4339

how you can select circuit breaker for 2000kva transformer?

TATA,

9 23573

What are the applications that use Solid State Drives in your home?

L&T,

1 5914

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

2226

what is the function of generator exciter

NTPC,

11 68289

One of the advantages of HRC fuse links is that they can be used to back up equipment with an inadequate rupture rating. briefly discuss what this means

1 5752

What is meant by the KA-rating of a circuit breaker? In this regard, discuss the stresses experienced by the circuit breakers

3 13873

WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?

10 33999

In Battery Charger - What is the meaning of End Cell Voltage and Float Voltage.

FLSmidth, Focus, PSEB,

9 42617

How to Calculate the maximum Demand required for a connected load for a manufacturing Plant

6 81852

How to design harmonic filter at the project stage without nowing the harmonics levels

2175

How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay

1 4023

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Un-Answered Questions { Electrical Engineering }

11000volt DG set carnt kaise banvay

1633

what is the advantages og idmt relay over magnetic relay??

4194

How can we convert 11 kv to 440 volt without using transformer ?

1394

What is the actual meaning of thermal power efficiency ?

2079

What is the name of transformers oil filteration equipment?

2043

how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........

5108

How to decide whether A / B / C / D curve type MCB should be used?

2242

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

2041

does buccholz in a transformer use batteries

4780

What is an Air COmpressor

2197

Which motor will you choose which can operate in both lagging as well as leading power factors?

1109

what is working process of star delta controlling circuit ?

1840

How i can decide that HVDC line is best for transmission.

1865

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

1976

plz explain the auot-reclosing circuit in electrical engineeing

2405

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