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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Battery is a voltage source? give one example of current source and why?

Suzlon,

1663

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.

1649

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 2155

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

1496

Electrical 'C' license full abbreviation , and full form

1959

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

1495

What happen if transformer neutral path get removed ?

1 2255

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.

1585

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

1479

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

1536

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

Engineering Vision,

1670

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

Engineering Vision,

1614

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

EMC,

1428

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

CUMI,

1643

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

1521

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Un-Answered Questions { Electrical Engineering }

why impudance relay used for medium transmission power system? why not others?

1530

What is Harmonics how it is produced and what is the method to control the same

2337

HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?

3463

How to calculate the Harmonics losses in terms of cost/unit.

2087

can i use the six sigma method which is used in management area, in state estimation of power systems?

1912

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

2519

what is the circulate the diesel in DG in side pls tell parts name and picture with circulate the diesel

2047

Why the moulded plug comes with domestic appliances instead of assembled plug like anchor, Vinay 5/15 A.

2107

What is ramp signal?

1169

What are marginally stable systems?

1146

How to back charge the Gas turbine generator

2210

can anyone send me some sample question regarding power grid corp

2254

Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2817

List examples of current sources?

1160

What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

2104

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