Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is P.F? Formula for calculating PF in HT side?

1 5722

What is VCB? Where it is installed?

Hyundai,

11 28384

What is metering cubical? What is the use?

HSL,

2 10498




What are safety seals?

HSL,

1 2002

What is PF? Formula for calculating PF in HT side?

HSL,

9 12803

What is Transformer?

HSL,

23 10895

What are the types of Transformer? Name them.

Bhel, NTPC, HSL,

9 12678

Which Transformer is commonly used for power distribution?

HSL,

11 11012




What is HT? And specify the range of voltage?

HSL,

5 4681

What is LT? And specify the range of voltage?

HSL,

10 17073

Which level of the Transformer oil got dielectric strengh? And why?

HSL,

812

What is AVR? Explain the function AVR?

NHPC, HSL,

11 57511

formula for cable size calculation for current?

ONGC, Sobha Developers, KL Power, RL Clean Power Pvt Ltd RLCPPL, SAS,

10 35033

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

867

IN PLATE EARTHING , PLATE LAID IN VERTICAL POSITION ,WHY HORIZONTAL WHY NOT

Airtel,

2 4668


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Un-Answered Questions { Electrical Engineering }

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?

356


how many types are their in switchyard or substation(like D,I TYPE), what is differant between them

845


how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

1062


what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

817


Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

773






I completed my BE EEE degree 2006 .... which license should i apply .... ?????

401


How the capacitance og capacitor volatage transformer is decided?

717


I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

730


what is control supply rating of a machine

733


how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???

713


What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

752


How Can you do Maintenance of ACB of 2000Amperes

847


in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????

813


r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

576


Why 3 phase induction motor getting supply in body if one of it's phase is cut

430