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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is Chatoliq Protection ?

Chemanol,

1 3791

What are the Safety Steps While Inspection the LT Panel.

1 7978

Why Dyn11 Transformer is selected for distribution transformer?

JK Associates, MSETCL Maharashtra State Electricity Transmission Co Ltd,

3 11091

Is the installation of the filter cloths necessary before spreading the gravels at the transformer yards?

1943

How to megger test 11 kV cable and the acceptance IR value

BVG, NFL, ONGC,

2982

what could be the reason of a burnt current transformer in an electrical panel

ERWAT,

1 3025

What is mean by staling?

UPPCL,

2 6525

how to calculate the battery AH

Turbo,

2755

what is reasion of harmonic create the power supply , And how to reduced to harmonic

Turbo,

1 3195

single phase power supply give to separate one steel coup with water, what reaction create

Turbo,

2086

Alternator couple to diesel engine why, Alternator couple to ac service motor with gear drive for 1500 rpm possible (yes or no) aim to low input power supply give to motor then high output power taken for alternator Please answer this question

Turbo,

1 4046

how to test the electrical panel.ht lt mcc pcc.

Ambience, Shivalik,

3780

Why scr and igbt used in ups systeam ????

JLL,

1 7122

why steady state stability limit is greater than transient stability limit ? How it can be explained ?

2917

how to discharge 3 phase power factor correction capacitors

M S Ramaiah Institute,

2466

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Un-Answered Questions { Electrical Engineering }

all details of DG UPS HVAC

2078

What are the classifications of heating element?

2046

what is mean by transition resistance of transformer?

4538

WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

2390

1.what is difference between ATS & STS main use. 2.what is difference between ACB& VCB With symobles,and main partes, manimum range. 3.How many types of relays and main function.

6304

Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

2589

difine electrical ballast in HPSVL

2091

What about electrical Units. discrive in detail

2097

What is the role of feedback in a closed loop control system?

1083

iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

2280

What Is HO factor in power selection

2074

generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

1922

how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1575

What is mean by hot and cold loop testing? What is the difference between them?

1125

transformer phasor diagram under load explain it?

2190

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