Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how to meas-our losses for L.T & H.T

2168

whether choke act as a voltage regulator in tubelight or not?

Bhel,

1 4824

How you will determine the volume of oil in a particular Distribution transformer.

1884

How to calculate the value of earth capacitance in a transmission line.

2362

what is the difference between contactors & relay.

2 5330

Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 5912

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2495

ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

2204

what is the MF if CT ratio is 500/5 and in meter specification is 3.75 REVS/KWH? Thanks and Regards Selvendran.N

1 3701

Why relay connected R phase and B phase.?

1 4392

which part of transformer heats up the most and why? windings, core or oil .

Lafarge,

3 7905

How do you know when the battery is fully charged?

ABB, Pricol,

6 12988

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

2499

Why is transformer a machine

Grasim,

1 2690

Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 4994

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Un-Answered Questions { Electrical Engineering }

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1887

what is the difference between surge protection capacitor and surge arrestor

2319

What is knee point voltage?

1146

Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2908

Explain Creepage Distance of Insulator

2218

I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?

3287

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1893

Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1904

how to calculate magnetic force genrated by a coil ?

2202

WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

3477

various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.

3307

What are the essential characteristics of signal flow graphs?

1102

IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

2143

how the inner and outer body is separated in aircrafts?

1103

Where can I get Iidian straderd specifications for electrical items or works in web? please help me.

2011

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