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, Siemens, Shiva Corporation,

1 3213

WHERE to use CVT & PT.

Suzuki,

11 22341

how can calculated the rating of the 11 KV transformer?

NBCC,

6 6368




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

4 7513

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

LTT,

721

how many earthing is required for sever room?

4 4023

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

Power Grid,

8 27018

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

Power Grid,

14 15227




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

22 33088

why synchronous motor has zero starting ?

NTPC,

8 13372

how to find out capacitor range?

2 2930

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?

9 13894

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 1214

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

10 21278

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

678


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Un-Answered Questions { Electrical Engineering }

Can anyone tell me some hints about what type of questions are asked by the interviewer by an Electronics engineer when company is installing an IPP and wants a team of engineers?

958


Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.

1232


What is the actual calculation for transformer short circuit test?.

1035


what is the voltages using in movie theaters??? why ??why not other??

936


i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

726






In which working principal temperature transmitter work.explain in detailed.

1002


which motor have relatively high power factor and what is reason for have high pf? 1.capacitor run motor 2.shaded pole motor 3.capacitor start motor 4.split phase motor

546


can i use 2000/5A Clamp meter to measure HT cable

768


Difference between control junction box (cjb) and power junction box(pjb)?

332


11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

434


What is the difference between AC and DC injection methods for rotor earth fault protection

803


how external lighting design? please give examples?

663


what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

928


We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

426


why chock were used in old tubelights but are not newest tubelights?

502