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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

DLF, Tata Steel Limited,

1 13607

why the stator is not laminated in DC machines?

4 16082

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

IOCL,

1956

if we convert kw into kva,which one formula use by us,pls tell me?

ABB, AEC, BGH,

19 27278

if we convert watt into kva,which one formula use by us,pls tell me?

ABB,

16 22190

if we convert Ampers into kva,which one formula use by us,pls tell me?

ABB,

10 13560

if we convert kw into Ampers,which one formula use by us,pls tell me?

ABB, Essar,

9 13999

if we convert kva into Ampers,which one formula use by us,pls tell me?

ABB,

7 11342

if we convert ampers into kw,which one formula use by us,pls tell me?

ABB,

11 19449

How to decide and select the different earthing wire size for the different types of earthing

Suzlon,

2226

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 4507

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

IOCL,

7 10827

What is transformer saturation?

1 4118

every motors written in name plate IP 55 what is this?

2 26903

what is general test conduted by transformer

Wipro,

8 13807

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Un-Answered Questions { Electrical Engineering }

why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc

2364

11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

1558

1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

2217

What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.

2621

How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

1502

If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

2176

why does the magnetic balance tests at transformer?

1906

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1581

Explain marx circuit.

1286

why burdens of VTs is more than CTs?

1730

How can we choose the rating of submersible motors

2587

what is the difference between interconnection and intraconnections in the circuit diagrams

8341

i've iocl interview.. if you know the interview process please give me information..

1944

hi guys please tell me the procedure for mesuring the coil resistance of 3ph induction motor?

1848

what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1999

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