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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why we use 50hz frequency in india why not other frequencies like 52,59,42 etc

INTC,

5 7426

why ie corona losses in tranmission line

1 2812

sir i am fresher.can you please tell me how can i get certificate of competency as electrical supervisor.

ONGC,

1 2933

why elcb used in circuit

ABB,

4 7324

Does induction motor start with dc power supply????

Essar,

4 7119

How to select the rating of the Transformer?

2 4765

Can anybody tell me what the breakdown voltage is for air and what it is for transformer oil please?

Pooja Cables,

4 6370

75kw drive operated motor current fluctuation from(85-130)ampere.current setting in drive is 130amp.sometimes motor trip when current limit cross 130amps.I change the drive. still current fluctuate between 80-130amps but in this time motor not trip,current setting in drive is 130amps.where is the problem?

1 3808

how many poles we use in high power generation

1 3788

what is the difference between line & phase current in star delta connection motor?

2 5114

If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?

1885

we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

Honda,

2433

Construction of ac motor?

1 3478

How the line trap works in substation...?

2 6207

If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

Jindal,

2004


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

ratings of lightning arrester

2047


Name a govt approved university which have 100% online engineering course.

1717


what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

2502


How servo stabilizer works.

2123


Purpose of providing neutral isolation panel for parallel operation of diesel generator

1779


diff b/w normal grounding and resistance grounding

1941


My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

2105


why tertiary winding is used in transformer with diagram?

2252


I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

2070


can any one suggest paper presentation topies for electrical engg?

1997


What are dcs and plc?

1106


What is the estimated total hydropower potential of india?

1137


What is Faraday's law

1506


What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current

2392


if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1666