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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

HOW EFFICIENTLY LOAD IS SHARED BETWEEN ALTERNATORS

1 3790

Why derating factor os applied on Cables?

2012

in 3-phase transformer which type of transformet is used in output side?

Essar,

6 10159

How to detect voltage vector shifting in interconnection protection.

1968

How open delta used for protection?

4 33570

if its possible for step up or step down DC volage directly ? possible means how we can do it ?

5 10020

how we can measure the dc current instead of clamp meter ?

1 4870

why we are using R,Y,B colours for 3 Phase ?

ITC Infotech,

4 10619

What is the working of Field winding in dc motor, in which part is it work or why ?

3 11030

What is the Efficiency in Electric motor ?

2 6262

What is the selection & Designing procedure for DG/Transformer

Crompton Greaves, Sterling, TATA,

4 10773

What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

SCS,

2235

DC Motors applications used in Lift/Elevators

IOCL, SCS, Usha Martin,

8 30697

Why Power factor is different - different in all three phase of a 3 phase nduction motor.

2 6084

what will happen if ac power supply is given to the rotor of an alternator

Goldman Sachs,

1 9130

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Un-Answered Questions { Electrical Engineering }

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1886

I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

1797

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%

1970

What is meant by turbo alternators?

1283

HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

1910

WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

2087

how to calculate the lightning arrester conductor @ no of earth pits required

2176

how do you test tachos and servos

2184

i have a 1500kVA transformer what is the kWH meter i need to use?

1847

How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?

1137

How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

2156

what is relay what is protection & contact multiplying relays where it is used function in brief

1249

What is speed mode?

1773

if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

1884

Write a note on materials used as a fuse element.

2176

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