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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between Resin Cast CT and Oil cooled CT?

1 4084

what is difference between elr and R eartl realy.

1339

how power can be saved using VFDs in detail explain

1 3041

difference between earthing and grounding?

ABB, Bharti, L&T,

2 5306

why we use iron corn in transformer instead of wooden core

12 16178

why weight is put on pulley?

1 2474

direction of tarbine& genrator

Sandvik,

1108

what is the power factor?please tell me uses.

NTPC,

5 5169

what are the various parts of airconditioning system used in train and its working

1 1823

What is static Device & Mechanical device? Is transformer a static device?

ABB, Emco,

5 31410

how to select earthing wire? procedures and parameters?

2 8279

what is booster? and how it is connected in a circuit?

APTransco,

1592

what is looping circuit in electrical lighting circuits?

L&T,

5 14071

Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?

Kirloskar,

1234

What is the difference between ARC & SPARK?

OPTCL,

4 32075


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Un-Answered Questions { Electrical Engineering }

sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance

1164


can some one clearly explain why -48 volt DC use in telecom site????

697


We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

1210


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5086


what is meant by moulded case circuit breaker ?

1217






reason of diode failure in alternator

905


During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

974


what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

2368


can i use ups power as a raw power for another ups

939


if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

700


Any Electrical Engineering jobs?Please refer for interviews. Thank you

974


Explain what is clipper and clamper circuits?

162


how is the testing of an REF relay? what are the test REF circuit having?

989


Which capacitor is preferred for high voltage and frequency?

172


What is the function of under voltage release ?

511