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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what do you mean by earth fault in transformer?

L&T, UPL,

2 17708

In a HT switchboard where Nos. of Transformers are connected, how to decide Incoming cable size? Whether Cable should be rated for connected load or maximum demand?

Power Grid,

1 6269

why two windings are using in single phase AC motor

3 9285

define power quality

1 4646

difference between alternator & GENERATOR

4 8497

exact difference between electronicsand electrical

5 6908

Please explain me about Relay curves and their sources to read ?

1814

How generating electric power export to grid from the generating station ?

1883

what is the conductor size in 33/11 kv line

Al-Thamer,

5 24870

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

2072

why there is a humming noise in transformer

Bhel,

8 11809

why we use the fuse in only one wire? althrough in ac current the current flows in both directions. why the neutral wire can be taken half the magnitude of phase wire while same current returns from neutral wire?

Bhel,

2 5164

how is reactive power controlled on the transmission system

2 4584

Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

1765

what are corona losses

Siemens,

3 6701


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

If we want to change a contactor of faulty one what are the conditions want to fullfil

2001


How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

5393


Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

1270


What is VSCF windelectrical system?

1909


how we can calcultae the short circuit level for bus bar

2241


How time response of the system is divided?

1201


A low wet bulb temperature indicates

1164


How to decide the size of the capacitor for a single phase induction motor say 2 HP ??

2241


in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

1824


if a number of plc s are there then how many modbus to be used

1966


what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

2135


i need mat lab program to find out the transmission line losses,regulation and losses

1903


why only exciting current is shown not primary current in transformer???

1872


explain working principle of earth leakage relay

3711


what is difference between isolation and ultra isolation transformer?, what is the method of testing ?

4336