Electrical Engineering Interview Questions
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Battery is a voltage source? give one example of current source and why?

Suzlon,

1223

Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

1239

For DG or Transformer body earthing, is it necessary to terminate the earth bus to earth pit directly? If not terminated to earth pit directly in earth pit and connected to any common bus strip which ultimately connects to earth pit, what will be the pros and cons?

1 1543

If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

1109

Electrical 'C' license full abbreviation , and full form

1464

kindly send me 11KV MV motor differential protection procedure by primary injection method.

1126

What happen if transformer neutral path get removed ?

1 1690

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1139

please explain to me how to calculate current,voltage,resistance with formula??

1088

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

1124

What are the raitings of Mcb,mccb and Acb in detail ??

Engineering Vision,

1246

What is icu and ics in Acb and how many time icu or ics passes from breaker?

Engineering Vision,

1179

why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

EMC,

1073

before synchronizing an alternator,power factor is leading ,why?

CUMI,

1163

we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

1113


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Un-Answered Questions { Electrical Engineering }

what will happen if there is a voltage leakage or current leakage in an electrical train

1646


How to apply 'c' license and also explain what is difference between 'c' and 'b'license.i am also working in one of the private company.i have finished my diploma in 2014 .i have already finished in ITI electrician course.....

1674


Write masons gain formula.

849


how are reversing the direction of dc motor

1302


give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

2371






How servo stabilizer works.

1762


what is the function of statics switch in ups and tell me parts

1644


what is the difference b/w ATS and HTS?

1850


What is referred to the electron in the outer orbit?

798


we have 15 ampere variyac but we want 30 ampere variyac what we do

1548


how many Classification of fire extinguisher

1776


We have Diesel generator of 200KW. fuel consumption is always same,even connected light load or full load. Is it right?

1856


How two nos. 130 kw D.C motor get synchronise using D.C drive.

1702


How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

2472


Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

2097