Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

Greenko Group,

1496

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 5048

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

JSW,

1 4737

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 14652

how to calculate the current carrying capacity of cable

Bhel,

2 5489

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?

1397

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.

1421

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

APCPDCL,

1495

How to increase solar cell efficiency ?

1 2568

what is difrent between earthing and ground

4 5691

what will happen if ac and dc supplies given

APTransco,

1626

WHAT IS MEAN BY MAGNETIC LOCKING

Bhel,

3 7965

WHAT HAPPEN IF TRANSFORMER HAS GIVEN SQUARE WAVE SUPPLY

APTransco, NTPC,

3 5790

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

KESC,

1486

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

Bhel, ISMT,

3 6480


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Un-Answered Questions { Electrical Engineering }

how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

1609


explain working principle of earth leakage relay

3039


What is a compensator?

640


why do we lay up the core of a cable?

1586


What is the need for a controller?

630






What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

1386


What is a system?

655


DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES

1594


what is the minimum voltage require to injure our body?

5601


WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

1787


explain remenance . differentiate high remenance type ct & low remenance type ct

1596


What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan

1600


what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

1592


Define steady state error.

620


what is the differance between HT motors And LT MOTORS.

1513