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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

when we decide to use soft starter drive or vfd drive in mcc to operate apump?

1122

What are the components ofan HT panel in a 11kv power station?

16756

From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?

1039

how to set earth fault relay

2697

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

1036

WHY R USE IN BRUSH IN THE MOTOR?

L&T,

5431

why PT transformer primary r the grounded?

L&T,

4491

why r use the wave taper in the substation ?

L&T,

3503

I want to know the principle of rotating flux transformer.

2238

why dc supply is given for excitation of ac alternator?how dc can produce flux?

4739

Where r use in Dc motor in power plant?

6001

How to work to the x'mer as a induction motor?

2389

how the specific fuel consumption of 320 kva deisel genarator set (explain with formulas please)?

RRB,

4065

Is there thumb rule to calculate how many Insulators to be used for Transmission line of different volatges

CS,

4104

what is the difference between isolator and circuit breaker

7260

Un-Answered Questions { Electrical Engineering }

the typical output of a solar cell is........

1352

why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?

1943

what will happen if earth of 33 kv cable (earthed system) is not connected to earthing pit?

1098

in shunt clippers why a resistor is used in sereis with the input

1050

what is conductor constant of raccun conductor

1130

What does bode plots shows?

159

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

1044

how many joints are allowed in underground HT cable of 1 KM

782

Explain cmrr?

196

Under wat condition statcom operates as an inductor for the transmission line?

965

How do we calculate transformer oil in liter from the rating of the transformer.

694

Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1082

What are the main advantages of generalized error co-efficients?

158

Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

1172

which fault is severe and why?between lll fault and lllg fault which fault is severe and y?

1496