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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

IF avr is voltage regulator of genset means why we are giving genset CT sense to AVR ?

ABB,

3 6562

what is the use of CurrentTransformer in AVR ?

2 5473

what is the lemen of a single 5mm 13000mcd white led pls reply

Eskom, Sona,

1 5081

how much current does 3ph. 10 hp ac motor draw.

8 54090

Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

1968

technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

Wipro,

1988

What is the different types of cable & current capacity of cable

1965

what is formula of illumation calculation

2249

what happens when one of the phases out 0f 3 phases been removed under working condition and no load condition will the machine run if so plz send me why

2 4683

why the supply power frequency is 50hz in india? where as it is 60hz in US?

4 8629

How loading get increased in generator not the speed, while we increasing steam to turbine.

2 4674

what is purpose of manual bybass in ups

3 5676

how much current does 3ph a.c & d.c motor drawn.Plz. provide formula with example.

5 7075

Why the earth cable have current 1A - 2A , it is safety for Electrical system or earth cable should be zero amps ? how to troubleshoot?

2013

What do you mean by ACB and VCB?

L&T,

3 12227


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss

3278


How does PLC work for sychronising of Two or more DG sets?

2076


why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?

2093


Name the test signals used in control system

1291


Why colled 440V to 3-phase supply.

2147


How good are you in resolving the commercial issues to Employer's advantage?

2360


How can maintain our H.T. motors used in cement plant. please send me procedure.

5147


Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

2031


some basic standard questions on transformer.

1797


what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

2007


how tto ingress mw in turbine explain.procedure ?

2302


What type of wiring series or parallel is used for conventional and addressable type FAS & why?

1798


Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2736


i want to model paper for section engg.

2006


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

2016