Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the method of electric earth for the protection of low voltage electric equipment

MacLellan, Shiva Corporation, Siemens,

1 4860

WHERE to use CVT & PT.

Suzuki,

11 29328

how can calculated the rating of the 11 KV transformer?

NBCC,

6 10066

Why do we have 110V, 230V, 415V etc. in electrical transmissions? Why not 100V, 200V,400V?

4 10108

how circuit breaker work.. what is the operations taking place inside a circuit breaker when an overcurrent occurs... is it similar to fuse?

LTT,

1592

how many earthing is required for sever room?

4 6381

What is GIS Substation and how it operate? where these type of substation installed?

Power Grid,

8 32332

HOW many type of Circut Breaker in the world used in 400 kv substation?

Power Grid,

14 20927

What is difference between earth leakage relay and restricted earth fault relay ?

22 43450

why synchronous motor has zero starting ?

NTPC,

8 18378

how to find out capacitor range?

2 4672

what happens when d cexcitation given to alternator is removed while it is running or what happens when dc excitation is failed in alternator while running?

10 19219

why we are calculating the capacitance between phase(conductor line)and ground in transmission line?why cant we calculate capacitance between the phase and the nuetral line?if so what is procedure.

Mytrah Energy,

1 2715

what is the difference between VARIAC,AUTO TRANSFORMER,DIMMERSTAT.

10 31414

hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics

1431


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Un-Answered Questions { Electrical Engineering }

What are the application of filter?

634


what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?

1451


What is resolver and glass scale in CNC how they work?

1716


Pl.brief me any electrical major fault you have rectified.

1463


Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

1233






how we can calculate power factor in single phase & three phase ?thank u

1539


How to know vacuum in vacuum cylinder of breaker in working condition

1468


I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

1624


How many types oil using in transformer ? How many letars using in transformer..?

1518


I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN

1629


what are the stresses in circuit breakers ?

1490


What is open loop and control loop systems?

663


What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1090


please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

1467


what is mean by ideal infinite bus? why it is required to consider in fault short circuit calculations?

2213