Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the TNC switch is called as Memory switch

Reliance,

1 3508

how to understand the controling circuits example star- delta-starter controling daigram please let me know

GMR,

3 7553

how many earthing should give for transformer body and nuetral

GMR, GOMS,

5 8427

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

1673

Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 5274

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

1672

Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

Vedanta,

2 5357

How the size of transformer decreases if we increases the frequency?

2 4745

Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

GMR,

2 4887

how to synchronize 3 phase slip ring induction motors of different ratings.

GMR,

1923

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

GMR,

3 5380

1.differance between onload ups and off line ups.

CTS,

1 5380

want happens when a dc is given to a commutator

2 4332

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 6003

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

SPCL,

1 2282


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Un-Answered Questions { Electrical Engineering }

how can decide the current rating of oltc

1975


ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

5886


how  do you choose the cable size as per amps rating & the voltage drop for the same.

1457


What is the polarization index value ? (Pi value)and simple definition of polarization index ?

889


What kind of maintenance is conducted for Transformer

1854






what is meant by 3rd hormonics ?

1603


What is A check, B check, C Check & D check for a diesel Generat

1733


what will happen if frequency is below 50 hz?

1709


what are the applications of PLC?

1671


how can see the ac indoor or out door ac which Tr

1691


What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1669


WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

4215


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

1552


what material is used in capaciter

1631


How can we checked Killo Watts of Motor & Alternator?

1828