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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Please explain open transition and closed transistion system in Star delta Starter?and also the state difference of both?

4 13686

what is the question paper model for section engineer in RRB



Can a 5 core cable one end with a 32A 3p+N+E plug and the other end 32A 3p+E be used on a generator?

1 3219

What is the use of Isolation Transformer, and Neutral is using for return path, finally this current is going.... but same time the voltage of the neutral should be below 1 V...

6 10224

Dear All, Pls let me know about ELR.... CBCT is using for singnal purpose... How it works.. any body can explain pls.......

4 13148

What do you mean by linear and bilateral network?

Automation, Disa, EGCB, Infosys, OPTCL, TICT,

20 142040

if the HR asked to me., you have got 92% in higher secondary but got only 72% in engg whats the reason??what should i have to say ..please help me..

Honeywell, Wipro,

8 9812

why making capacity is more than breaking capacity?

Essar, Indo Asian, Infinity,

14 29385

what is inrush current in transformer?

Bhel, Essar, GMR,

17 36395

what is electric current

17 11356

what is the capital of india

eInfochips, Reliance,

13 15155

what is surge suppressor?


5 7092

how to write program by ladder logic in case of PLC operation

Gridco, Sofcon,

3 16318

how power saving takes place through VFD?

9 13111

If i want to build 230kv substation what are the equipments to be installed?

7 13558

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..


In ht capacitor ckt we are using LBS Panel it having isolator with fuse, one of HT fuse flash over, so what is reason behind this event.


What is the numerical quantity of sqcm?


hi if anybody got model questions for cpcl Grade'A' electrical engineer position.send it to my mail please


generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...


how to do the ductor test?


I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)


What happens if the series current double?


pls tell us AC plant are how do work and parts name with picture


Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?


i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected


hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible


what is the difference between fault current ant short circuit current?


Why delta star trformers are used for lighting loads?


What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.