Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is real time system type definition

1 2326

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 1938

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

11 8272




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

2 4099

What type of motor is used inside computer CPU.

TCS, Bhel,

11 18739

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

Wipro,

2 8577

What is the difference between Relay and Contactor

Siemens,

35 132779

how does an energy meter works?

4 4751




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

851

what is joule?

2 2862

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

2 6572

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

1165

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

648

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

Power Grid,

769

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 5955


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Un-Answered Questions { Electrical Engineering }

difference between Ac and Dc mcb ????

136


Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

640


Is there chopping current in resistive circuit

784


why don't we use the generator as a motor? and what will happen?

620


What is inverse definite minimum time lag relay? Where is it use?

1403






impliment (AB)`+C to transistor representation

472


Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

1008


how maney type tempereture measurement ?

1013


Plz tell me how we can find that particular company has vacancy or not

800


upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

816


What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works?

781


How to Calculate Transformer Earthing Electrode Rod Size both Body and neutral Earthing ? Any Standard Formula? Please Suggted

333


Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

855


how to check ac servo motor

874


HOW DOES THE ELECTRONIC ENERGY METER WORKS?

835