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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is RSS Meter

Krishna Constructions,

7433

what is the difference between relay, contactor

BRSS, Vishay Intertechnology,

4 5386

Capacity of circuit breakers all types

Megatron Solutions,

1 2991

Why the field rheostat is adjusted such that the voltmeter reads 380V

SRM University,

2246

1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

GTL,

1898

difference between substation & grid substation?

GMR,

2 7028

3 phase supply is there Total kw 100 howmuch cable put the load

3 4662

transmisssion type

1659

how to calculate cable size in transformer, distribution side?

1 3088

What is the difference between Welding Transformer and Normal Transformer?.

DAE,

2 5334

Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

DAE,

1699

Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

DAE,

1663

Whether cable is designed for different fault currents?

DAE,

1 2606

Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

DAE, Tata Chemicals,

1690

What is the difference between amorphous core transformer and CRGO core transformer?.

DAE,

3684

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Un-Answered Questions { Electrical Engineering }

what is the difference b/w ground & virtual ground?

2274

If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

2667

What Is HO factor in power selection

2015

How to find out damper winding failure for synchronous machine?

1457

what is charger supervision and control supervision?

2023

what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA

2758

Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..

2126

What is the lower limit of break-down voltage of converter transformer.

1869

Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

1739

Difference between drift current and diffusion current?

1825

what purpose to use excaiter in DG.?

2745

Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

2159

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

2413

in electrical control panel. how can i choose the cable rating. (example - 11kw motor, 18-25A mpcb}

2809

how to calculate the settings for shaft ct protn in hydro generators

1935

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