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 6441

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,

2329

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

ACC, Bhel,

1 6764

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

2255

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?

1906

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 4853

what is kondo syatem in eletrical traction

APCPDCL,

2183

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.

1962

Why are the HV motors are connected in star connection?

5 14122

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Un-Answered Questions { Electrical Engineering }

what is the difference between rectifier and converter and commudator?

1958

i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?

2430

what is settable hystersis protection? If any body knows plz kindly post the answer..

2055

What is the difference between Droop vs Isoch Control?

2435

What happens to voltage when current is zero?

1291

We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?

10455

WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

4867

What is bode plot?

1243

our industries ht line so power fluctation(once drop of power please rectify causes

2255

What are the different types of controllers?

1086

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1994

IN electrical field, WHAT ALL THINGS THE CUSTOMER WILL ASK WHILE ORDERING FOR LT PANEL (ALL TYPES OF LOW TENSION PANEL)

2119

there are cam operated switches - why we call cam operated , What is cam ?

1916

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

2049

what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

2284

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