Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the difference between ELCB and RCCB. Please define the working of both.

6 14193

to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

1608

CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

5164

why we used to transmitt the power at higher voltage why not at lower voltage

8 7896

why after termination of HT cable armoured earth connected one end, why not connect other end.pls tell me correct answer.

3 9954

what is armature reaction?explain in simple words?and what is its infleunce on dc motor

16 35456

what is the difference between torque induced and torque load?compare them with respect to dc motor?

1686

what is the difference between ac and dc?which one is more efficient?and what r their advantages

1 3453

what is neutral plane shift?

1 9060

In Power transformer oil temperature or winding temperature will be high

3 14554

what is differnt between metering CTs an protection CTs

10 12304

MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED. TRANFORMER DETAIL NORMAL KVA--150 KVA PRIMARY VOLTAGE --34.5 KV SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA CONNECTED) CONNECTION--D/d (EXTERNAL CLOSED) CONSTANT RATEING FROM--1.290-908V CONSTANT CURRENT FROM--908-690 VECTOR GROUP--D III

1 3075

pls someone send me sample question papers along with the key.thanks in advance

HPCL,

1974

why electric shock due to dc is dangerous than that of ac

8 8409

What is different between Metering CTs and Protection CTs?

4 13533


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Enlist four components of electrive drives.

1504


What do you mean by pull of electromagnet?

686


Is it possible to make a 5P10/ CT Ratio 50/1A Burden 5VA

1339


why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1644


WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

1709






what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me

1723


how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?

1648


100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

1916


List out the the types of Mounting Light fixture?

1281


Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1385


if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

1753


sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

1647


Why an ac systems are preferred over dc systems?

723


Why PS class CT is always preferred for Differential protection?

1177


What is the difference between AC and DC injection methods for rotor earth fault protection

1764