Electrical Engineering Interview Questions

in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

12615

why the stator is not laminated in DC machines?

14870

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

IOCL,

1538

if we convert kw into kva,which one formula use by us,pls tell me?

ABB, AEC, BGH,

22822

if we convert watt into kva,which one formula use by us,pls tell me?

ABB,

18446

if we convert Ampers into kva,which one formula use by us,pls tell me?

ABB,

11342

if we convert kw into Ampers,which one formula use by us,pls tell me?

ABB, Essar,

11385

if we convert kva into Ampers,which one formula use by us,pls tell me?

ABB,

9532

if we convert ampers into kw,which one formula use by us,pls tell me?

ABB,

16330

How to decide and select the different earthing wire size for the different types of earthing

1831

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

3908

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

IOCL,

8987

What is transformer saturation?

3055

every motors written in name plate IP 55 what is this?

25752

what is general test conduted by transformer

11679

Un-Answered Questions { Electrical Engineering }

What is the accepted limit to increase the choosen transformer capacity over the load and why ?

2727

1hp= how much rpm

1598

How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

1655

i am going to give the JSEB,RANCHI exam for power plant,so i need some samples of papers related to that,so please send me these papers by my mail id.

3027

How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

1733

what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

1870

What test must you do before powering up a circuit that you have been working on?

1403

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

760

In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

1611

why we used dc supply for field in dg set

1950

i am completed my degree(B.E EEE) 2014 anychance to get electrical licence plz help me

1687

how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

1114

which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

1581

What are the advantages of speed control using thyristor?

666

with help of neat sketch explain principle of TIG welding process

1480