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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is real time system type definition

1 2726

when the PFR (POWER FACTOR REGULATOR)change a step to zero,one of the RCCB will triped off,is it the changing step of this PFR effect the RCCB?

2 2485

IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 10029

what is the advantage of pwm pulse compare to squarewave pulse.

2 4677

What type of motor is used inside computer CPU.

Bhel, TCS,

11 21499

Why in earthing, the earthing plate is put in vertical position? and further what is soft coke that is used in earthing?

Wipro,

2 9465

What is the difference between Relay and Contactor

Siemens,

35 139347

how does an energy meter works?

4 5466

Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

1177

what is joule?

2 3463

what type of protection and safety req. in the 220kv substaion and area around the substation

2 7705

what is the basic construction diffrance between servo motor ans sqiralcage induction motor

1494

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

978

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

Power Grid,

1063

We have 250 KVAR cacitor bank & our average load is 200kva but our power factor is average 0.66 how can we maintane it? how can we balance our load?

4 6782


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Un-Answered Questions { Electrical Engineering }

tell me about eletrical contractor

1040


What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

751


HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

1124


we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

961


how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.

1373






What is the actual meaning of thermal power efficiency ?

1132


What is meant by a stray loss of a induction motor??? What is the equation to find it

2044


What is diversity factor in electric installations?

175


what is the use of Auto re-closer?

1128


Phase control and integral control are used for?

1223


EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT

1001


What should be the height of basement according to NBCC code?

1252


We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.

884


what is magnetizing current test in power transformer

1717


I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

969