Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How are calculated the aluminium busbar cross section area?

2 6433

Are same transformer be employed for step up and step down services?

3 3143

On what basis primary and secondary of a transformer is chosen?

2 2584




how to male a d.c bettery to blow a 230v bulb?

1 2311

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 5216

How to protect the water pump by no load running.

Cushman Wakefield,

9 7056

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 1841

In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 2241




In UPFC,What is the need for Dc link ( DC capatior)?

1 2894

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 1345

why microprocessors are named as 8085 ,8086 etc? what's the reason for this???

HCL, Bhel,

13 28002

what is basically a pulse transformer?

1 6187

what is relay multiplier

Bhel, Wipro, Atomic Energy Commission,

1 3633

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 2733

SSC JE ELECT.

SSC, CPWD,

1 16326


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Un-Answered Questions { Electrical Engineering }

Type of motor stater detail and working detail

335


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

1015


What is the two pole structure?

272


WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

931


Can you explain about TEE protection scheme?

826






how is find out kwh step by step

439


What is the types of HT motor testing

1995


Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

714


in non technical way how can u define POWER FACTOR??

514


where can the transformer having vector group Yny0 be used??

2038


What is Antipumping Function & If we have C.T how we find the Ratio ?

607


at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.

314


any one can explain what is the size of pvc,armoured, various sizes of powr cable dia?

585


how calculate gd2 of ht motors

953


why current flow to the opposite direction of flow of electrons???????????

773