Electrical Engineering Interview Questions

What Maximam Gap Taibaar & Bush

1862

What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity?

13563

why Copper loss is represented as I square R ?

L&T,

10577

Difference between auxliary relay & pla relay

9359

what is the function of governor in dg set

14434

Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

GE,

1848

how do using transformer 30 deg lag or 30 deg lead

2827

3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

2281

hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

1513

I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

1453

Is electro plating what type of load whether resistive, inductive or capacitive loads

2948

explain why reduced voltage starters are required for large tree phase inudction motor

3832

What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

1434

What is big transformer parts and their function ? Ty

1733

why we use low kv lightining arrester in line for example 9 kv using in 11kv

2998

Un-Answered Questions { Electrical Engineering }

how many types of motor can be used in washing machine

1717

which type of effect of turbine and generator reverse power protection ?

3795

sugest any typical project ?

1407

How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?

2506

i want to run 11kv star connected motor in 6.6kv with delta connected throught inverter, is it possible?

1661

what's prime importance of protection in electrical system.if protection system don't work properly what can happen in electrical system?

1473

Dear all, how we select the cable size according  to current with or without including different correction factor , is there any direct method for sizing of cable...

1743

how will calculate the safe starting current of 3-phase squirrel cage induction motor?

1495

How many types of faults are there in 3 phase power system?

689

What is the function of auadag in a cro?

719

What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

2349

what is the difference between interconnection and intraconnections in the circuit diagrams

7629

we have 3 single phase transformers. how will we generate 6 supply from 3 phase supply input

1698

What is the two pole structure?

1462

why we are using earth pit in sub stations.?

1610