Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to select power and control contactor .

Bhel,

1 3416

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1583

Hi, We have have the major losses between BBT ( Bus Bar Trunking) to LT Incomer & LT to HT incomer, how to arrive the losses?

1 3077

What are the complete specifications of a motor?.

RRB,

2 5264

why in scott connection of transformers, main transformer is tapped at 50% and teaser transformer at 86.6%?

Bhel, Bosch, College School Exams Tests, Wipro,

5 31473

difference between analog pressure gauge & digital pressure gauge?

1 6810

what is the meaning of electrical maintenance?

GE Healthcare, MAHINDRA,

3 22409

Sir if i have 2kv ups in which 17ah 8 battries load 600watts how much back up time i get and if i put 6kv ups with the same no of battries same amp can i get more back up time please give reply exactly what is the procedure to calculate back up time for different kv,s

3 5580

definition of transponder?

1 2759

working principle of current sensing relay? how its work?

1 5132

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

1696

what is lumped and distributed elements?

1553

Write a note on RC operational amplifier as integrator

1 2746

what are the main differences of delta and star connection

Essar,

5 6253

can we run three phase motor by single phase? and what happens if we do this

Kirloskar,

8 11960


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Un-Answered Questions { Electrical Engineering }

What is the significance of integral controller and derivative controller in a pid controller?

646


There is any especial requirement for motor to drive through with VFD?

2180


please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

1502


What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?

1390


How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

1483






i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

1330


why power factor is important?

8342


How many kw will suply from one db

1077


how to select automotive wire by mathematical equation with given current, vlotage and resistance

1904


Explain Continuous and Discrete signals?

1301


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?

1028


why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

1525


is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

1181


1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

1927


why we change the direction of winding in rotor ?how we make the north and south pole?

1592