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Electrical Engineering Interview Questions

Application wise, where we should use AC motors and where we should DC motors?

1437

Under wat condition statcom operates as an inductor for the transmission line?

993

In wat way the power compensation takes place when a statcom is connected in a transmission line

3062

what is mean by power factor

6750

What is the meaning of In,Io & Ir in Circuit breaker? How to calculate?

7064

UPCL,

6050

Which supply is using for train AC or DC & what is the voltage????????

27325

what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

17582

the resistance of wire having length X M is R OHEM if i streched the wire to dubble length what will be the resitance

2649

pls tell about gas insulated substation?which gas is used for that substation?above which rating we are used this substation?how we take maintenance in that substation?it means substation fully shutdown or live condition?if live condition means how?pls clear this things

3330

what is model question rrb junior engineer electrical gr.II

1147

what is CRGO Transformers?

27029

comparision between mcb,mccb,elcb,flcb,elcb in details

ABB,

1359

differtiate between energy consevation and energy efficiency..

L&T,

2635

importance of reactive power management

1124

Un-Answered Questions { Electrical Engineering }

Please send 110 kv sb station full single line drawing(sld)

1651

If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

1100

Explain how you decide what size of electrical wire do you need?

190

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

3844

use of PIR in ehv breaker

1242

what is circuit recombiner and how it is different from circuit breaker

968

what is differant beetween overload current and phase current?

1340

explain Density

216

how the speed of the gets motor regulated. does it draw the same current on the all speed level.

1071

The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?

2779

What is tan delta & PPM in transformer? and whats its IS value?

1136

Define closed loop control system.

192

Why the output of OP-AMP is always less than Vcc?

1077

ht side line to earth voltage

644

hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

651