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Electrical Engineering Interview Questions
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I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 6400

how to measure the voltage drop in cables also give formulas to calculate.

Cable Wireless,

3 9583

for 12KW motor which cable size has to select for ex.10 meter.

4 10568

whats the advantage and disadvantage in TUMETIC mdel transformer

ABB,

2 7977

What is meant by unilitrel device?plz tell about h-parametrs

1 2142

what is ELCB?

Wipro,

10 16462

When connecting a loaded powerplant to the Huge grid,what are the factors to be considered and how the VAR flow will affect the system?

1 2762

iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

RRB,

1305

what type of questions are asked and howmwny questions belong this catagory?

RRB,

1171

A 2D array X(7,9) is stored linearly column wise in a computers memory.Each element requires 4 bytes for the storage of the value.If the first byte address of X(1,1) is 3000,what could be the last byte adress of X(5,8)?

TCS,

2 2900

For testing 33kv cable hipot testing. How much kv we have to Apply .Give in details.

23 75699

why we permissive overreach in distance protection.where it is applicable to use in long r short lines

1812

what is the difference between underreach and overreach.what is the advantage of using overreach instead of underreach.explain

1 11626

WHAT AC (HI VOLTAGE TEST) VOLTAGE SHOULD APPLY FOR 33KV CABLES.EXPLAIN IN DETAIL

NTPC, Voltech,

12 14699

The neutral to earth connection in my industry is showing a zero reading (shorted). I have a machine which has to be installed where neutral to earth is not shorted and shows a leak voltage <3 Volts. Please suggest me how it is possible.

6 6980


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Un-Answered Questions { Electrical Engineering }

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

908


how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

1264


What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

1163


in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)

1033


Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

1172






What is the difference between a Root Locus plot and a Bode plot?

179


How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?

1961


What the difference between ac and dc inductor an capacitor

1277


what maximum range of star & delta in hp or kw ?

774


what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

974


If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?

840


please tell me how a surge protector work on a DC 48Volt.? please describe briefly.

938


Inductor and capacitor........power in one phase and ...... in it another phase.

1055


Dg pf .71 i am improve pf 0.80 what capacitor connected in dg how?

766


Why can't we parallel Voltage transformer secondary circuits?

470