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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

is power factor correction related with vector group of transformer i.e:Dyn11?

1 4168

why the the electrical machine coil are damage ? How to prevent it?

2 4435

in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

Shaifali Rolls,

2267

A 12.5 hp slip ring motor taking high initial current and its MPCB is getting open.what may be the reason?

3 5272

What should the transformer connection of a 11/220 kV step up and 66/11 kV step down transformer ?

CGL,

4 8061

What is the function of the circuit breaker failure relay?

2336

What is the function of the auto reclosure relay?

1 4964

in transformer star connection with neutral are shorted. is there is any effect.

1 3488

for a machine R=130 KVA Y=132 KVA B=144 KVA Then what will be the total kva

ABB,

3 6224

why insulators are colured in brown only?

Transco,

3 6619

How does solar power system work?

1 3801

what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

TNEB Tamil Nadu Electricity Board, Vestas,

2308

What is the criteria in selecting Air circuit breaker(ACB) & Moulded case circuit breaker(MCCB) for a particular range?

DLF,

3 8269

Does the ELCB or RCCB trip when it is connected to a primary side of a welding transformer?

Tata Motors,

3 10004

how much power consumed by 1.5 ton capacity split A.C in 1 hour

2 4649

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Un-Answered Questions { Electrical Engineering }

how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

1925

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1835

A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.

1034

can u please mail me the syllabus for GET exam for damodar valley corporation?

2031

Why have to use copper cable for local isolator to motor ?

2054

what is self capacitance of inductor

2383

DG cranking voltage?

4704

Why hydropower is called renewable source of energy?

1001

how much LT load can bear by the 100 KW HT connection.

2181

63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

2691

explain Density

1082

Q: How to calculate Transformer losses , tell us by Formula.

2018

why genarator genarating voltage 11 KV?

1749

What is zero of the system?

1062

What are the functions of different probes used in cro?

1148

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