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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Why the TNC switch is called as Memory switch

Reliance,

1 4160

how to understand the controling circuits example star- delta-starter controling daigram please let me know

GMR,

3 8449

how many earthing should give for transformer body and nuetral

GMR, GOMS,

5 9780

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

2023

Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 6042

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

2029

Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

Vedanta,

2 6253

How the size of transformer decreases if we increases the frequency?

2 5394

Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

GMR,

2 5744

how to synchronize 3 phase slip ring induction motors of different ratings.

GMR,

2298

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

GMR,

3 6221

1.differance between onload ups and off line ups.

CTS,

1 6196

want happens when a dc is given to a commutator

2 5386

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 6862

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

SPCL,

1 2852

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Un-Answered Questions { Electrical Engineering }

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

2029

If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?

1151

What are electric motors?

1158

when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

2493

HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

2006

Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

1716

How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?

2302

why tertiary winding is used in transformer with diagram?

2251

What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

2270

Name one of major transformer company in KSA ?

1210

size of condotory fron voltage level

2216

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

2011

33kv substation lay out details & line to line & line to earth measurements

2621

What is the type of feedback used in an op- amp schmitt trigger?

1028

What is the need for a controller?

1214

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