Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

1 5225

why ht11kv supply needs discharging during shut down time

1 3052

what are the advantage of UG cables over the over head lines

DVC,

2 4439

What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?

2 5676

What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?

ABC, ACB,

1983

why rating of generator is kva but motor is kw ?

4 11332

how to identify small motor and generator?

1 3378

what safety use in electrical panel

3 5424

What is class X ct? What rare its uses?

2 5442

1.What do you mean by inductive and capacitive parts of an electric circuit. 2.What do you mean by decrease of inductane and capacitance of a network? Please dont give me the text book answer.3. What is class X ct and its applications?

2 3586

list the type of vfd? wich is sutable for heating kiln?

AluChem,

1576

How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

Powermec, TATA,

3 9251

working principle of AC Servo Motor with its construction

TATA,

8304

what is IP65 & What is its advantages

1 3978

how to reduce the transformer size in ups ?

2 4575


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Un-Answered Questions { Electrical Engineering }

we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

1230


Why are the laminations insulated from each other?

629


Difference between transition and diffusion capacitance

2296


Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

1402


what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

2841






i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1456


what is magnetizing current test in power transformer

2140


how to select energy meter? have any calculation?

2360


On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

3563


Pl.brief me any electrical major fault you have rectified.

1464


What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

1509


what is high and low cut off voltage of BB and DG at SPS????????

983


What is pole of the system?

646


what is the formula of starting current of 3phase and 1 phase motor???

1552


What is block diagram?

619