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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the stander resistance value between the neutral and earth?

Crossdomain, Sepco,

10 23478

What is the differance between Digital Energy meter & Static energy meter? why the KWH diferance between both meters.

Raychem RPG,

3 21995

What is MPCB, MCCB, ELCB, RCCB ? Explain them ?

2 9345

Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.

1970

What is the average hieght of a electrical tower? what are the factors that are taken into consideration for deciding its hieght other than voltage level?

1 3823

Why does a TV set have two pin plug whereas the moniter of a computer has three pin plug? Isn't the earthing protection required for the TV set

2 6649

what is the size of ht cable of 33kv ht line and transformers ratings are 2.5mva and 5.5mva.please send formula also.

1 10887

What is the advantangeous over SFU (switch fuse Unit) & FsU (Fuse Switch unit) which one is better & application of Both?

2 25765

What is the relation of current with torque when motor started in Y-connection???

4 7008

I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

HCL, TCS,

2382

what is the working of loss of excitation relay (40G)? how it is work?

1 5819

motor is 12.5hp after starting few minets motot get hot? why?

5 7973

Whatis the procedure for getting Electrical (light) licence while Iam a diploma holder in electrical Engg . I Compleated my one yr Apprentice training & worked as a junior engineer (ele) for 2 yr(contract basis).

TVS,

1 7708

how does circuit breaker works

1 3870

11/.433KV, 100KVA TRANSFORMER is supplied with .433KV AT ITS PRIMARY. HOW MUCH KVA IT CAN SUPPLY

ABB,

8 18733


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is purpose of reactor?.What is different between line and bus reactor?

1948


is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details

1996


how to set relay setting? and example calculation...

2043


what is the circutor?why we use it ?

2331


how to failure indution motor insulation & how to improve heat in motor insulation

1887


hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

2132


How to calculate the Harmonics losses in terms of cost/unit.

2025


what is allowed value of zero sequence impedancce of 6.6 kv nuetral earthing transformer ?what is the actual value

2187


how to calculate transformer turn primary & secondary side 11kv to 420v

2192


what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?

2079


Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

1864


I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

1681


HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

2118


Explain the advantages and disadvantages of thermal power plant?

1102


how to find the capacitance value of the motor while running??

1930