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).

2733

where used of HVDS system.

3 9830

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 21929

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 5151

Name quantities which are not transformed in the tranformer.

3 4647

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

4 20690

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

2 9498

What is Peterson coil? Where it is used?

2 16427

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

1 3198

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

1 4096

what is meant by HT<?

5 8296

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 10846

what is the VVVFD and?

4 13881

how to cal calculate capacitance in DC Circuit

1 3949

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

TATA,

1 5066

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Un-Answered Questions { Electrical Engineering }

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1841

temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1877

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

2291

What is minimum phase system?

1102

i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

2015

why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?

2899

Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?

1924

one electromagnet is called

1872

What is the function of under voltage release ?

1385

Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

1877

What is Load sharing of Transformer ?

1999

Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?

1905

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5349

HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

2252

placing earthing pit in pathway is correct or wrong??. placing earthing wireGI1/18 inside walls is correct or wrong?. explain!!!

2120

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