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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

npcc,

2756

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.

2108

why do we provide metallic enclosure to bus duct and then ground it?

1 4675

how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com

2930

Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

2912

If any cable burnt how can we identify it burnt by high current of high voltage? 

2467

Why we use Delta connection in the secondary side of a High Voltage transformer?

1 3845

What is the function of NER and NET?

Asian Paints, GHH RAND,

2460

what are upstream faults and downstream faults in power system

Sreetech,

2 10263

What is the difference between surge arrestor and surge capacitor?

Shreem Electric Ltd,

2 10115

why we used dc supply for field in dg set

Hindusthan National Glass,

2404

in catridge heeter  watts =110, 260 v ,  i checked in multimeeter meeter shows 50 ohms but oms law r=v square /w  260*260=67600, and 67600/110=614.5 ohms  how to caluclate exact ohms in heetre s 

2 4153

What will happen when we will connect lamp in between phase and earth. 

3 5365

function of apfc pannel

3 5271

Where is the best place to mount  distribution panel in a house.

Wantro Technical Services,

2114


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Which is the largest hydropower station in the world?

1162


state working of halogen lamp?

1836


what is electrical machines

3693


What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

2235


How many size of cable required for a 300m long and 30kw inductive lode

1318


What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?

2668


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

2073


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

1734


Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

2323


WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2458


What are the basic elements used for modeling mechanical rotational system?

1125


What are the types of feedback oscillators?

1309


what is servo motor and how it works?

2305


Can anybody tell abt concrete encased earthing or grounding?

2077


what is droop control?

2199