Electrical Engineering Interview Questions
Questions Answers Views Company eMail


What is the max demand on your transformer and your company?

Bhel, CBRE, JLL, MNC, HPL, Lemon Tree, Tata Power, TATA, Torrent Pharma, IOCL, Core Consultants, L&T, Tata Motors, Rashmi,

9 35136

What is the power factor you maintain at ur organization?

Microsoft, Wheels India, Cummins, Powergear, Suncity Strips, KTC, Secure Meters, Exide, Johnson and Johnson,

41 56469




How do you connect the capacitors on polyphase circuits?

L&T, Transco,

9 25963

What is the make of breakers, transformers, generators? What are their capacities and ratings?

Bharat Bijlee, GHPPL, Tata Motors,

3 18248

Is your generator is automated or manual if so do you know the circuits?

RRB,

7 15885

What are the different sizes of cables for H.T and L.T side of supply?

Bhel, Karthik Industries, Lanco, Torrent Power, Shilpa Electrical Engineers, Nedco, BSES, TATA,

7 54050

Do you know how to measure the earth resistance? if so explain it

MSEB, ABB, JLL, Dalkia, Genpact, Sical, L&T, University Exams, IOCL, College School Exams Tests, Saraca, Electrical, Telecommunications, BridgeStone, Dalmia Group, DEC, HEC, BEL,

42 130177




What is meant by H.R.C fuse?

Taj Group, Gas Projects, GSCE,

39 163086

What are the different protection systems takes place on control panel board?

BSNL,

6 17965

What are the different ratings of the fuse units for different distributions at your organization?

UPPCL, TATA,

3 9937

What are the different protection systems used to protect the transformer internally and externally?

16 35953

What is the rating of your substation and what are the different types of substations?

Bhel, UPPCL, NTPC,

5 28890

What should be the earthing resistance of an industrial substation and also What should be the house hold earthing resistance?

TATA, Pharma, TAAT, Jindal,

20 79970

How do you maintain the earthing resistance?

Birla, Ford, JLL,

13 33796


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Un-Answered Questions { Electrical Engineering }

Why the power factor improvement is so important in industrial loads

753


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

1016


How does a transformer contribute towards the widespread popularity of ac system over dc?

85


what is transformor oil gread

1249


How to calculate per unit impedance of transformer?

1002






May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

521


in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

938


What will be the effect if I use inverter as UPS mood?

1195


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.

886


How many types of protection relays are there based on the characteristic?

75


How would your past experience translate into success in this job?

5794


What is the meaning of loop in transformer

614


what is the calculation formula for motor starting torque,running torque, running torque.

596


how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.

1204


Define damping ratio.

92