Electrical Engineering Interview Questions

What happen if we apply square wave or traiangular waveform voltage to the transformer primary winding instead of sinusoidal wave?

1699

What are the tests to be done on circuit breaker?

3258

Transmission voltage is kept 11KV,33KV,66KV,132KV,220KV due to form factor. What happen to 400KV and 765KV transmission voltage?

1742

new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection

1399

How to calculate the current carrying capacity of sized cables, and there is any formula. please send to 'than.achu@yahoo.com'

2515

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

1632

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

4251

i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

1756

what are inherent currents?

Sail,

1610

How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

2918

For a load of 40HP induction motor.what will be size of Armoured copper cable require to connect the motor to starter in Star-Delta?

CG,

4481

what is the disadvantage of lagging power factor & why ?

4888

one electromagnet is called

1468

Why transformer rating in KVA? describe.

6529

What is sequence network? Discuss all three types of sequence network.

2988

Un-Answered Questions { Electrical Engineering }

Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks

3472

how many joint can done in HT line and what is life of the joint

1795

What are the different methodes for calculating the short circuit Current?

1547

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

1292

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1206

WHAT DO YOU MEAN THE DIFFERENT TYPE OF CURVES OF RELAY LIKE STANDARD INVERSE, VARY INVERSE, NORMAL INVERSE, LONG INVERSE ETC....

1586

what is the electrical?

1683

What is effect of over voltage and under voltage on ACB

1442

what is spadar bar .why I use in DC generator.

1514

How to calculate Ith (I thermal) for curent transformer

1632

write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

2111

Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

1434

sir, Is their any measuring unit of knoking? please explian?

1466

Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

1260

How to calculate per unit impedance of transformer?

1612