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 ATS?and its function or operation in power system with its layout.

DLF,

1 4305

1.what is the reason for transformer and lightning arrester blast in 33kv system

ABB,

3096

How to connect a ELCB with contactor and relay ?

2359

Why a tesa lamp is glow between two phase?

2014

what is resistance

AITM,

6 7680

why inductancce of armature inductance of dc machines is neglected?

APPSC,

2 11078

from generating station If 400v LT line length is 1000m how much voltage is drop and how do i calculate it? which cable will be use for this line?

2034

fuses rated by amperes but not power,why?

Blue Star,

3 6827

can any one explain about when EB supply failed then how the load will transfer onto DG's step by step.

1 3313

dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

Technomax, ups,

1 2955

What is the purpose of Vector Group in transformer?

Andritz, ThyssenKrupp,

1 4957

how to calc. current for 5MVAR,50hz,33kv

1 4004

In a 3 phase system a neutral exists so that any unbalanced currents can flow through it towards earth.... but a phase demands a particular current as per the load attached to it....then where does the extra current come from the goes in the neutral??....I mean in an unbalanced system a phase demands a current as per its load attached....then where does the unbalanced current come from??

1 3363

I am having 120KVA UPS,which is connected to DG & normal power. What is the power drawn by this system when system is running on DG ????

2 4267

how to get electrical supervisor competency certificate in gujarat. i did 3 year diploma in electrical

2575

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Un-Answered Questions { Electrical Engineering }

What is the drawback of static coefficients?

1623

what is the VA(Volt-amphere)? define with calculation?

1287

ratings of lightning arrester

2051

where was current transformer protection units used and why??

2040

What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)

1924

What is difference between slip rings and carbon burushes?

15113

how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

1750

Which type of transformer is used for lighting loads?

1138

what is level 2 automation?

3157

please send previous exams question papers

1834

Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?

1846

Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2143

why the name trunking bus PT

3073

dear sir/madam i want to get some knowledge about RRB EXAMINATION(section engineer) 1- what is minimum cut off 2- wht portion is major portion . 3- can any body provide Sample paper. thanks & regards ashish

2368

What is an ac motor?

1278

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