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 squirrel cage & slip ring motor works? how they differ from each other

1 5456

why the earth pin in a 3-pin socket is longer and thickest?

5 9220

which is better 50 HZ supply or 60 HZ supply?

6 12270

Difference between KW & kVA

7 11319

why -48 volts dc used in telecommucation

2653

What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

Areva,

3 17271

i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester

2164

Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.

Piramal Healthcare,

2130

Why indicate only 440V to 3-phase supply.

4 9259

whatis mean by voltage?

7 10795

Main Differance between Primary Distribution & Secondary Distribution Of Electricity....?

1 24745

Why is a synchronous motor always star connected??

Bhushan Power Steel,

2612

what is the benift of HT metering & LT metering

1 4770

what is the wattage of 'zero watt' bulb?

PSEB,

16 34332

Megger type of instrument is used to check??

8 10368

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Un-Answered Questions { Electrical Engineering }

What cmos is and its benefits?

1216

If there is major % of Voltage harmonics in the system, how can it be control or reduced?

1990

what is servo motor & how does it work.

1950

Why do we need interlocking in a HT metering or Ring main unit switchgear?

2026

what is inter connected dc generator?

2838

What are the different losses In a de mac1une'! t.xplam

2748

What is resistance of 50meters, 16sq.mm, single core copper cable?

1892

hi frds, i m electrical engineer.can i get cdr for electrical engineer if u have then send me on my mail id its jayesh_ee88@yahoo.com.please help me frds

2194

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

2195

How much load can be taken for chiller from 1500 kva transformer

1278

details of oil cell size of Breakdown voltage test of tranformer oil details as per Standardswith mushroom electrodes?

1887

Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2168

why induction motors are rated at 0.8 power factor.

2005

What is the permissable nutral current of three phase system as per IS standards?

2110

hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

1966

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