Electrical Engineering Interview Questions

WHICH SUPPLY IS BETTER FOR 4 MW LOAD. 1)TO TAKE NEARER AVAILABLE 11 KV SUPPLY OR 2)TO TAKE 33 KV SUPPLY WHICH IS AVAILABLE AT 10 KM DISTANCE BY INVESTING NEARLY 50-60 LACKHS

2088

why we use 110vac in overhead crains? why not 220v, 24v

SOFT,

5671

what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering

1498

how pt is using

1516

in three 3.5 core aluminium ug cable. one cable is used for one phase by shrting R,Y and B wires and other 2 cables used for Y and b phases. balace 3 neutral wires are made common and connected to load. suddenly neutral current was more than line current what is the reason behind this?

DLF,

2032

Y phase's (RYB) r only 3,not 4 or 5?plz answered in breif?

3020

What is the fullform of NS fuse

14126

what is transformer?

5038

Is there is any hazard to insulation of 3hp motor 5 KV megger is used for it?

3124

what is meant by trivector meter?

3661

Why 11KV/440V distribution supply use for Domestic use?

11764

The power showed in the name plate of the motor is input power or output power?? The power showed in the name plate is 18.5kw measured current is 34.5 amps. location is india. can i calculate the efficiency of the motor using this data??

5145

I am EEE student i want to improve my core side skills.how cn i approach it?

2030

how to select cable size for three phase?

4480

How out of step protection relay works?

APL,

1824

Un-Answered Questions { Electrical Engineering }

What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

1989

why high speed tripping relay is used in protection circuit why not normal relay

891

HOW DOES THE ELECTRONIC ENERGY METER WORKS?

1652

Why do we require transformer with less specific weight if supply frequency is increased?

1159

How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

1296

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1023

what is effect of length of air gap on performance of dc motor and generator?

1370

Can u tell me design of switch yard

1732

Whata are the types of Cables?

1643

How we can defined theecopper cable size if we know the aluminium cable size?

1419

how to select fuse rating for a 3-phase motor ???

1374

why does the magnetic balance tests at transformer?

1463

can you plz send l&t aptitude questions if available its urgent plz plz plz

1678

What is called grain-oriented laminations?

658

what is meant by the phrase 'static load' in case of shorting in a generator excitation system?

1753