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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

KOTC,

844

If auto trip is operated, can you close the breaker.

KSEB, L&T, Siemens,

2 1210

Why you are switching off arc protection mcb when you are taking shutdown for lv board.

KSEB, L&T, Siemens,

764

Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

KSEB, L&T, Siemens,

769

How you give clearance to a spare feeder.

KSEB, L&T, Siemens,

742

How to put breaker in service / test position.

KSEB, L&T, Siemens,

1 1835

Operation of isolators.

KSEB, L&T, Siemens,

1025

Load transfer in 11kv double busbar switchgear - operation.

KSEB, L&T, Siemens,

1053

How to check the cable fault / hv test of transformer cable.

KSEB, L&T, Siemens,

964

How to do maintenance of transformer feeder.

KSEB, L&T, Siemens,

875

How to do maint. Of busbar.

KSEB, L&T, Siemens,

1 2240

Single line diagram for dbb (double bus bar)system.

KSEB, L&T, Siemens,

1015

Which type of arc protection devices used.

KSEB, L&T, Siemens,

2 2107

How earthing of switchgear system to be done.

KSEB, L&T, Siemens,

1015

What are options used for earthing the switchgear.

KSEB, L&T, Siemens,

914


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Un-Answered Questions { Electrical Engineering }

Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.

905


I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

971


Ratings of power transformer,Distribution transformer.

635


In three pin plug 6 amp. 220V ac rating. Why earth pin diameter is higher than other two pin? What its purpose ?

196


Differenciate between circuit wiring and sub main wiring with illustrations

1318






in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.

1401


Is it possible to measure the voltage of a battery from a single terminal?

749


sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company

1340


Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

1073


How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

1194


How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations

1102


the problem faced on star or delta winding connection??

1060


In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

717


what type of earthing do for dry fissure rock?

1587


How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

3494