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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between high impedance & low impedance

L&T,

1 4693

how to converate kva to kw ?

4 7254

For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?

DPL, NTPC,

5 8290

can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

1812

What is the criteria for deciding whther fire wall is required between two power transformers

1 4204

Why we have use 3 & 1/2 core cable use for general electrical supply arrangement

1 4041

What happened when the field winding of dc series motor is open?

Bhel,

2 4919

What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

NTPC,

1 9899

how to differentiate a mpcb,mcb with a contactor? Explain their working operation

L&T,

2220

How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

2095

what is the function of avr when synchronous generator act as synchronous motor

1 3920

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1882

why are u join ntpc

NTPC,

2162

why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

Descon,

2187

I have calculated load for an office building which is 1200 KW as all the load is single phase therefore its 1200 kw single phase. Now i have to design Transformer and Generator for this load Please kindly give me exact answer that how much capacity of Three Phase Transformer and Three Phase Generator is required for this load.

3 6254


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

2655


Which of the following alternatives will be cheaper (1) A 100 h.p AC, 3-phase motor (2) Four motors of 25 h.p each (3) Five motors of 20 h.p each (4) 10 motors of 10 h.p each explain

3030


Explain using drawings what is reverse PID action w.r.t PID controllers.

3453


Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

2394


explain all the classes with example

1963


When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

2078


how much allowable resistance that can be difference in motor all coils?

2339


If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

2232


state types of reflectors in illumination engg. ???????

1941


how calculate gd2 of ht motors

2312


If there is major % of Voltage harmonics in the system, how can it be control or reduced?

1990


Which Class insulation is prefered for the sandwich Busducts ? Why?

2031


what is KA rating and how can we choose switchgears on applications

1446


What do you mean by turns ratio of instrument transformer?

1094


what is transient stability analysis means?

2147