Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

I try to check the three phase voltage in multimeter, in 125A isolator switch incommer. first i touch R phase, and then i touch Y phase using multimeter, the moment i touched, it blasts and that moment i got blindness. multimeter selector position is correct(750V AC MODE AND RED PROBE WASS IN v AND BLACK PROBE WASS IN COM. MODE. COULD ANYBODY GIVE ANSWER FOR THIS TO AVOID FURTHER ACCIDENTS PLEASE?

2 5587

what is meant by impedance testing of transformer and why it is used

TATA,

1 5060

what is the difference between electrical choke and electronic choke?

2516

what happens to the supply voltage if there is any change in frequency?

Gridco,

1 6437

Hi ,what the accurate method to set correct(In) over load to protect the 3~ motor

4 5095

how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

Bhel,

2328

how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

ACC, Bhel,

1 6762

sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls

2252

What will be the fault current of any system when its generation is 10% of BASE generation( FUll Load )?Will is 10% or the same as full base calculation?

1905

why abcd parameters are called as transmission parameter?

Accenture,

1 16822

why h parameter are called as hybrid parameter?

1974

out of all machines which have highest efficiency and why?

2 4851

what is kondo syatem in eletrical traction

APCPDCL,

2179

HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

1959

Why are the HV motors are connected in star connection?

5 14121

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Un-Answered Questions { Electrical Engineering }

What are the protection required for Transformer, motor, Line, Generator, capacitor, that all i have to refer which standard?(Like Transformer detail IS 2026)

2010

Why the cores of large transformers build up of circular cross section?

2290

i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

2341

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

2092

how ceiling fan worked?

1913

why does make gain margin and phase margin on same plot.?

2114

we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1911

HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

2006

what is the main function of capacitors in mccs.

1741

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

2004

What is the complete procedure of erection of electrical panel in industry

1871

33kv Rated output avilable in market (any where in india)

2074

What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

1998

What is the difference between PLC and Embeded system

1432

How to discuss the phase shift of transformer considering open delta?

1467

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