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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).

2837

where used of HVDS system.

3 10075

Iam Preparing For Ap Transco Assistant Engineer (ELECTRICAL) Exam how To Prepare What Is The Refernce Books.can You Give The Advises To Me.tahnk You. This Is Radhika Iam Preparing For Ap Transco Assistant Engineer (ELECTRICAL

2 22149

What is the speed of 3 phase IM(Induction motor) at no load? How will the Motor meet the increased load(Explain through fundamental)?

2 5365

Name quantities which are not transformed in the tranformer.

3 4894

What is Scott connection? In which device it is used?

4 20997

Are generator action and motor action relates to a particular machine only?

2 9705

What is Peterson coil? Where it is used?

2 16688

Is there any difference between load based power plant and coal based power plant?

1 3410

why do we earth the tandelta point of a power transformer bushing?

1 4323

what is meant by HT<?

5 8755

i am swathi, b.tech 4th year. In smps(switched mode power supply)we are using diodes,mosfets,igbts for controling of current. And my question is why we did not use thyristors(scr)? it is also act as a switch,then what is the drawback of scr as compared to above transisters> if we use the scr,then what is happening ? plz give reply as soon as possible bcoz i am doing project on smps. plz frnds i want ans for that. if anybody know the ans plz send to my e-mail id /swathi.tadakapally@gmail.com/

EEE, TCS,

5 11237

what is the VVVFD and?

4 14306

how to cal calculate capacitance in DC Circuit

1 4157

how to calculate the current capacity of a wire if its dimension in Square mm is given

TATA,

1 5251

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Un-Answered Questions { Electrical Engineering }

Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

2441

Dear sir, I completed DECE In the year 1995.Now i am working in a private company from last 10 years as an Electrical supervisor.The company having a 1000 KVA transformer.Now i try to apply "C" Licence. I am eligible or not.If not eligible,pls give solution.

1808

how harmonics generated in induction furnance? how minimise it?

2060

What is an 86-P or an 86-A trip

2133

what work will do diffrential realay DG set

2967

in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

2179

What is meant by rotor?

1349

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

1469

witch pump used in wtp

2166

What is oscillator circuit?

1201

Load transfer in 11kv double busbar switchgear - operation.

2019

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

2026

What is difference between Over Current & Earth Fault protection?

2507

What is the formula for calculating no-load current?

1154

What is the difference between vector surge relay (78) and Pole slip relay (98G)

1271

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