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 6443

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,

2332

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?

1909

why abcd parameters are called as transmission parameter?

Accenture,

1 16823

why h parameter are called as hybrid parameter?

1977

out of all machines which have highest efficiency and why?

2 4855

what is kondo syatem in eletrical traction

APCPDCL,

2184

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.

1963

Why are the HV motors are connected in star connection?

5 14124

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Un-Answered Questions { Electrical Engineering }

how to calculate power consumption in slip ring motor at different step

2239

What are the types of windings according to the construction?

1119

What is the difference between relays and contactor construction wise?

2250

EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

2321

Why mostly the HV side of transformer has Delta?

3219

What is the types of HT motor testing

3589

what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2712

what is difference between speed mode and torque mode in motor?? explain in simple words please.

1596

What does the a,b,c of 95a,95b,95c relays denotes?

2678

What is meant by vector group

2541

Do closed loop systems require manual input?

1160

DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

2263

which type of stability limit is higher,steady state or transient? why?

1905

Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

2192

Why do not we prefer non conventional sources of energy to conventional sources?

1203

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