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Electrical Engineering Interview Questions
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Why we need to carry out knee point voltage test of current transformer ?

Power Grid,

1 6634

wat s the electronic device used in the fan regulators recently?

 2 4588

WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers

2294

sir What is the different bet'n "Active & passive" sensors

Kirloskar,

3 5408

Sir Power transformer :- (in generating station) Alternator terminals side - Delta HT transmission line side - Star Why?

Kirloskar,

4 6354

sir, What is the purpose in Generating power plant is operated Lagging PF and Above 0.9 lag PF?

 3 4556

in 220/132 substation in place of PT what equipment used & what r the role of that equipment

 2 4218

what is resticted earth fault protection ? how did it protect & work in power transformer

 3 4823

can we identify the direction of power flow in transmission line by after only looking the tower

TNEB Tamil Nadu Electricity Board,

7 17363

what is Distance protection & how did it work

 2 4359

in 5 mva transformer 33/11 kv s/s what rating of capacitor bank is required & what is the fourmula for rating

 6 13299

Difference between EDO and MDO breakers?

ACB,

10 63664

CBCT selection

 1785

what is the knee point voltage in current transformer

 2 4733

As the one point of eac phase winding is connected to each other in satr connction. Even if that at distribution side collesion of two diff phases result in to blast. Why?

 1 2654

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Un-Answered Questions { Electrical Engineering }

Why reactors use before incoming of ac vvfd drive?

1354

Ac generato how produce power I need for camplet defination

1164

in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

1870

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2039

A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

1451




Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

1107

can we find the inductance of a induction motor?

1540

What is meant by short-pitched winding?

644

What technology is used in latest generators?

1626

I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?

1623

is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details

1557

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1500

Why do we use copper cable for HT Supply and why not Aluminium?

1522

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1461

what is diff btw electric,magnetic & eletromagnetic field

1556

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