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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

In a 11KV 3phase system do you need to earth both sides of the cable?

2 6202

what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)

2209

what is the main difference between simplex RTD and Duplex RTD?

6 79898

by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

HP,

2027

why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?

2145

what will be the motor terminal box connection arrangement (star or delta). on what basis it decided?

3 9362

what happens if the phase sequence of parrlel connected sys will changed & phase displacement

1 3743

What is the actual formula for transformer short circuit test? below i given rating of the transformer.. 1000KVA, pri 11KV, Pri amp 56A. %Z 5.95..

2 6346

What do you mean by per capita requirement of electrical energy in india

Tech Mahindra,

2322

why cant we use earth as neutral at home whereas neutral is actually grounded at transformer end?

4 7936

What is meant by a stray loss of a induction motor??? What is the equation to find it

3145

when a airgap of the induction motor gets larger does it draw more current ??? does it power factor gets lower?

3 5570

how to maintain frenquncy with syncronising sub-station for distribution

Suzlon,

2184

use of choke in APFC panels

Kemrock,

2 5913

What is the de rating factor of cable? What is the importance of the de rating factor in cable select

2439

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Un-Answered Questions { Electrical Engineering }

what will happen if there is a voltage leakage or current leakage in an electrical train

2061

what is your aim

1963

CBCT selection

2321

WHAT IS THE PARTIAL DISCHARGE TEST?

2174

A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

2169

how is positive, negative, zero sequence is happen.. how is effect on 3 phase system

1846

State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

2550

Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

2408

WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT

2411

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1879

how can decide the current rating of oltc

2462

how to find the multiplication factor for digital energy meter and analog energy meter

2255

What is the difference between solid grounding and impedance grounding?

2189

The height to which the liquid in a tank to be maintained for a certain constant velocity?

2041

How to calculate cable size in HT AND LT

2064

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