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Electrical Engineering Interview Questions
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DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

Greenko Group,

1129

My energy meter ratio is -/110/root 3,1A and connected line CT is 100/1,PT is 11kv/110 so what is the MF for meter

Apollo,

1 3719

how to determine the size of power cable according to load current

JSW,

1 4045

A 60w bulb & a room heater are connected in series.if 60 w bulb is replaced by 100w then what will be the effect on heater out & why?

6 12349

how to calculate the current carrying capacity of cable

Bhel,

2 4631

How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

1039

During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1041

How the frame size of a flange mounted AC induction motor is calculated?

APCPDCL,

1119

How to increase solar cell efficiency ?

1 2048

what is difrent between earthing and ground

4 4573

what will happen if ac and dc supplies given

APTransco,

1257

WHAT IS MEAN BY MAGNETIC LOCKING

Bhel,

3 6351

WHAT HAPPEN IF TRANSFORMER HAS GIVEN SQUARE WAVE SUPPLY

APTransco, NTPC,

3 4788

how the CT and PT is connected in the circuit during testing of transformer explain with diagram

KESC,

1154

why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

Bhel, ISMT,

3 5394


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Un-Answered Questions { Electrical Engineering }

Give some differences between open loop and closed loop control systems.

244


HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)

1121


TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?

1160


how to select the no. of brushes in a lap winding?

1376


how to read idmt curva

1289






how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

1301


i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

954


How many kw will suply from one db

684


will 1050kva DG set withstand for back charge of 16MVA transformer

1017


What is the difference between isolators and electrical circuit breakers?

240


What is the type of earth fault protection used in battery? explain.

1444


what is the use of power transformer in GSS.

1498


what will happen when the dc supply is given to the capacitor?

620


what is the working principle of a DG Set, Alternator, & exiter

9260


In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.

1188