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 4320

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

2 4682

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,

2351

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

3 5538

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

CGL,

4 8379

What is the function of the circuit breaker failure relay?

2429

What is the function of the auto reclosure relay?

1 5103

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

1 3645

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

ABB,

3 6465

why insulators are colured in brown only?

Transco,

3 6890

How does solar power system work?

1 3945

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

TNEB Tamil Nadu Electricity Board, Vestas,

2423

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

DLF,

3 8497

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

Tata Motors,

3 10264

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

2 4875

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Un-Answered Questions { Electrical Engineering }

sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

2050

Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel

2067

what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.

2219

What is a fuse? How does it work? What are materials used?

2095

Is potential difference materials property ..? if yes tnen how.. explain brifly.

2119

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.

2436

Draw transformer phasor diagram.(full load,no load)

4223

What are the relays in ACB and VCB

2316

A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

2561

I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

1729

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1964

If we connect a motor and generator together (I mean that the generator gives the motor electricity and the motor gives the generator movement) regardless the losses. Will the generator still generate and the motor still move?

2332

What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.

2396

what is the difference between droop mode and ischnorous mode in thermal powerplant?

2711

do you have some of interview Questions in power and genrator section in general whith answers

2230

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