Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the value of 3 phase voltage?

RECPDCL,

7 3052

why do we need a 4th wire in 3phase 3wire transmission line

6 3502

What are the limiting factor for controlling maximum hot point temperature within a hydrogen and water cooled generator?

1 1297

resistance of transformer oil=?

HCL,

1 1410

What shall be minimum thickness of firewall in between two transformers and which code specifies it ?

1 10245

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

1 1024

Three phase star connected PT transformer primary side one phase fuse is blown what will be the output in secondary side(Secondary side also three phase star connected)

Sun Pharma,

2 3337

what is the internal working of star delta starter

598

in a plug point why the hole size at the top is large?

TCS, Bhel,

9 5941

what is 'A' Check & 'B' Check ?

2 1400

What is single break or Double break related to MCB?

2 2030

How to convert KW to KVA or KVAR OR kvar/kva to kw?

8 36092

open circuit test when performed on double the voltage & double the freq, then what will happen with p.f and current magnitude?

Aarti Drugs,

393

what is an S.C.R. and how do they work?

GE,

4 2575

How line capacitance & line inductance varies with increase in height tower.

745


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Un-Answered Questions { Electrical Engineering }

hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

854


How you will determine the volume of oil in a particular Distribution transformer.

313


how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021

435


importance of reactive power management

497


i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection

345


explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.

639


please give me solution to rectify the emi(electromagnetic interference)

395


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

335


what is the purpose of shading ring or shading coil in electrical equipments.

1187


how to carried out tan delta test in 11 KV alternator ?

1185


Why have to use copper cable for local isolator to motor ?

457


how to measure earth resistance of a substation

1408


The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

374


at which voltage level arcing ground is occurs ??????????

395


How line capacitance & line inductance varies with increase in height tower.

745