Electrical Engineering Interview Questions
Questions Answers Views Company eMail

when generator of a power plant is not connected to grid , by increasing the mechanical torque speed of rotor increases but when it's connected to load instead of increase in speed current increases , why?

1 3031

If the generator will trip, what you will do as an electrical technician in charge.

1 2770

If the circuit breaker will not close or it will trip, what will you do?

3 5298

If the generator will not synchronize, what will you do?

3 4668

What are the types of excitation system?

1485

I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1475

wat is mean by HRC fuse... WHY we choose it...?

3 4557

actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.

1738

what is ten delta ?

ABB, Areva,

2 4759

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

ABB, Visa,

1667

what mean by analog ,digital,numerical meters and relays? say the example?

ABB,

1767

we all know that in capacitor there will be no ay physical connection between the two electrodes of the capacitor ,and the charge is stored between these electrodes during charging , so with out any physical connection how these charge is transferred from one plate to the another plate during the discharge?????

1 2667

whu the transformer noise during running condition?

NTPC,

1 4448

what relation between transmission line & communication line?

NTPC,

1 4611

Why we did not feel electric shock in electric train?

NTPC,

1 5617


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how oti and wti connections are different from each other?

1603


The simple way of finding the leakage quantity and % in compressed air distribution system

1211


WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

1652


if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1013


i am going to give the JSEB,RANCHI exam for power plant,so i need some samples of papers related to that,so please send me these papers by my mail id.

3015






A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

4490


What is meant by short-pitched winding?

668


What is miller crystal oscillator? Explain its operation?

693


How to derive detailed design of Suitable bus Bar for 100A for 6.6KV?

1455


I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

1517


How to reduce -234126219.6403 MVAr generation and by what?

1238


What are Contactors? How they works and what its highest rating?

1553


What is grid collapse? what is the reason for it?

1576


in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

2162


what are your career plans upon completion of the programme and the relevance of recity generation to your professional development?

1764