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 the difference between thermal magnetic release and microprocessor based release breakers. what are the advantages of latter over the first one...

Jackson, Karthik Industries, McD BERL, TCS,

5 62924

what is the difference between earthed system and unearthed system.. where do we use unearthed system because in electrical catalogues always cable for earthed and unearthed system is given..pls elaborate

3 37722

how to connect from a line-to-line connection to a line-to- neutral connection?

6 9383

what is the function of a starter in a motor? explain RLC circuit.

14 76308

wap to print prime number from 1 to 100 using c++

1 7496

wat are the transmission losses.... how can it be compensated....... wat s power system.......

NPC, NTPC, TCS,

1 5881

wat s reactive power.... how could it be compensated.....

TCS,

4 7989

If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

Amara Raja,

2081

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

OPS,

2889

What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?

HAL,

8 45464

Iwould like to know barc interview questions

BARC,

3244

how LT meggar works

Essar,

1 7050

what is saturation in transformer

Essar,

9 47929

if voltage is not builed up in small generator what will be the reason?

century,

7 11020

what is droop?

Alstom, Bhel,

13 82828

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Un-Answered Questions { Electrical Engineering }

how we sesign the transformer give some specifion regarding design of transformers

1921

Percentage losses in power generation?

2989

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1967

What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1916

Give some differences between open loop and closed loop?

1106

In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?

1712

In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

2520

what is the meaning of number in (11, 31, 61,14, etc. CDG11, CDG31, CDG61, DDT32

1441

1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

2294

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

1396

Difference between Lugs and Thimbles

15204

what is excitation/

2211

What do you mean by power transformer?

1073

which mm cable should be used for 1.hp immersible pump motor for the distance of 330 metres?

1713

WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?

2117

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