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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

where any change in supply line due to the incipient faults in three phase induction motor

ABB,

2 5028

why voltage swells and dips???

3 5364

sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance

1 2160

why and how fault current flows through ground?

1 4498

What facility we get after CT secondary earthing and how?

Reliance,

1 2300

Why indian power system in 11kv,22kv,33kv,66kv,110kv,220kv ? 2) Why ups required dedicated earth?

Energia, L&T, Sail,

8 19930

In our generating power station we get electric shock in the battery bank, what will be the reason?

3 5089

What should be the conservator minimum oil level required in 2 mva transformer

JSW,

2 10737

Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

Century Rayon, Mechanical,

1 2271

what is difference between earthingpits,earthing grid & earthing mess?

TATA,

1 2560

what is diff. between earthing grid,earthing mess, earting grid?

Century Rayon, Emco, Tailor Solution,

1 2455

Why? We r used 50sq. mm. And above size cable in 3.5 core and below size are used in 4core

2 4809

what is difference betwen genrator and alternator?

Tanfac,

3 6085

what is difference between fuse and breaker?

ABB,

6 10641

why we are discharging h.t supply during shutdown time

1 4247

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Un-Answered Questions { Electrical Engineering }

Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.

5469

sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com

1865

why and how voltage sharing in transformer, during magnetic balance test ?

2416

In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

2346

please send me latest & previous years question papers for IOCL Technical level questions

1938

what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

3849

where are the circulat the diesel in DG parts name with pictue

2193

What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)

2230

What is the height of DA, DAL, DB, DC & DDE tower?

2432

What will be result if we connect LT votage to the terminal of HT motor?

2200

pls someone send me sample question papers along with the key.thanks in advance

2452

PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com

2076

Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

3103

Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1942

WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

2715

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