Electrical Engineering Interview Questions
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Transmission line design. Say, I have a 1MVA generator and 2 transformers that will have the same load. What would be the proper rating of the trasformers? Is it safe to say, that I will simply divide the total rating of the generator?

1 1955

what composit error,ratio error,phase error in CT and PT??

4 27604

Why Aluminium wires are used for High tension(HT) lines? 11 KVA/32KVA & aboue

6 11650

srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?

4 3056

What is the percentage loss for aluminium wire for HT line more than 11KVa


When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.


5 7314

I am working on a 11KV system with fault current of 40KA for 1 second. I have selected 2500MVA 11/0.433KV transformer. How can i find the impedance value for this transformer? Please help me.


2 3951

what is short circuit force ? How to calculate it for Panel?


1 3996

what is the difference between high impedance REF & REF, same high impedance differential protection & differential protection for Power transformer?

1 7038

to improve the existing power factor whether capacitors have to be added in series or parallel.and why

3 3955

how to calculate the capacitor rating for improving power factor

L&T, Synergy, Property Solutions, TAFE,

10 14926

why earthing is not required on transformer prymary winding side ???


13 17110

want to know about DMRC

4 5779

why the amount of voltage generated at power generating stations is 11 KV only....?

3 2329

In a company has been installed an analog amperemeter, this company was suplied by generator X, there is no problem in the ampere meter, rigth now this company's supplied by generator Y then the pointer in amperemeter vibrating. What happened? Why? Thank's

2 1749

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Un-Answered Questions { Electrical Engineering }

When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?


Is it posible to instal one more SMDB from the existing SMDB and is it practical.


Is it true that in the 3 phase transformer, the limbs of the core are at 45 dgrees to each other. if true, why?


What is the end effect of linear induction motor ??


How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.


how  do you choose the cable size as per amps rating & the voltage drop for the same.


What are the advantages & disadvantages of a group electrive drive?


define the non synchoronism of synchoronous machine in general g or m??


Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.


What will be the effect if I use inverter as UPS mood?


i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice


Control wiring of a dol starter for forward and backward


why swinburnes test cannot be performed on series machines?explain


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.


Electrical Engineering