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 extend relay operating timing in 24V dc relay card (without using Timer )

2088

what is meant by PU value ? anyone can you explain briefly to me ?

3 5593

need help, please can someone tell me how can i calculate the main breaker and branches breakers to distribution panels (MDB) depending on the load ampere .. i really need it but can't find any site >>

3 4794

What is maximum permissible length of cable from transformer (33kV/0.433kV) HT side to HT panel which contain VCB? In which standard i shall get this information.

MSEB,

6 16828

Which motor has more efficiency ;Synchoronous or Induction motor ?

TATA,

4 8870

What happens when the power factor is leading and its disadvantages.

1 3960

What is the basic difference between 90% stator earth fault and 100% stator earth fault, and its phenmenona?

Reliance,

4 19966

purpose of breaker contact multiplication relay?

ABB,

5 25943

if two heater of rating 1KW,200v are connected in series 100v supply what will be the power taken

1 4783

write a program that prints prime numbers from 1-20 in digonal form

2062

What will be done if we open the secondary of CT on load??

Engro,

4 7305

what is the transiant condition in alternator? and how it can be prevanted?

2187

i alternator which of genarator used for excitor the what is reason?

3 5014

Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 4599

I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?

4 6176

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Un-Answered Questions { Electrical Engineering }

Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

2163

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

2726

advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1845

induction 3 phase motor terminal connection

2760

How to design the earth grid for lightning protection in an industry

4815

how to introduce yourself

2091

draw 3 phase rectifier diagram

2260

What is EMC filter in VVVF Drive ?

2793

what is the differencce inn series and cascade connection??

4789

What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

1915

What are chief characteristics of state-space method and its techniques ?

2221

why we permissive overreach in distance protection.where it is applicable to use in long r short lines

2812

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3978

what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable

2048

What is the maximum percentage voltage drop (vd%)for a motor control center

2070

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