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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

IF avr is voltage regulator of genset means why we are giving genset CT sense to AVR ?

ABB,

3 6701

what is the use of CurrentTransformer in AVR ?

2 5652

what is the lemen of a single 5mm 13000mcd white led pls reply

Eskom, Sona,

1 5184

how much current does 3ph. 10 hp ac motor draw.

8 54425

Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

2034

technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

Wipro,

2052

What is the different types of cable & current capacity of cable

2041

what is formula of illumation calculation

2321

what happens when one of the phases out 0f 3 phases been removed under working condition and no load condition will the machine run if so plz send me why

2 4792

why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 8754

How loading get increased in generator not the speed, while we increasing steam to turbine.

2 4767

what is purpose of manual bybass in ups

3 5828

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example.

5 7256

Why the earth cable have current 1A - 2A , it is safety for Electrical system or earth cable should be zero amps ? how to troubleshoot?

2072

What do you mean by ACB and VCB?

L&T,

3 12399

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Un-Answered Questions { Electrical Engineering }

Do you know what is dry-out test in x'mer

2713

HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

2102

What is the difference between multimeter

2029

can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

1507

Why power genaration in India is at 50HZ while America its 60HZ

2341

What is the ideal position cooling fan inside the dc motor?

2151

what is harmonics? what are the factors it will depend upon

2087

hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.

2168

Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

2405

Iin ESP why positive is grounded ? why not negative ?

2762

What is EHT tariff or Power factor Tariff ????

2394

Explain Even and Odd signals?

1959

Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

1118

What are the advantages and disadvantages of negative feed back?

1193

tell me some type of questions throught which i can prepare for exam and do my best

2096

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