Electrical Engineering Interview Questions

What is restricted earth fault protection ?

3630

why a diode bridge is provided in vcb control circuit ?

4313

maximum transmission voltage in india ? & where is it situated ?

13256

how to increase the power factor in machines

6454

What is mean by earthed & unearthed cable? Voltage grade of 1.9/3.3 kV(E), 3.3/3.3 kV(UE), 3.8/6.6 kV(E)what it indicates??

16153

resitance in ac=1.6*resistance in dc

4705

Hello Can I use step up HV transformer 440/4160V as a step down? Thanks Evgeny

6333

what do you mean by mf of energy meter & its formula?

32215

What is Procedure the procedure to select CT's & PT's in 66kV and above substation?

BEL,

5439

What is GIS (Gas Insulated Switchgear)

12247

What is meant by "tampering detection" of a electrical energy meter?

4132

difference between EMVT, PT & CVT ?

38484

while calculating the power absorbed by a resistor connected to the output of a half wave rectifier circuit should we use rms or average current? explain with reason.

2902

can we say current flows inside an atom as electron moves inside an atom?

8519

is IS says that neutral should be brought to switch box. and this one is a recomended practice

1477

Un-Answered Questions { Electrical Engineering }

How can we checked Killo Watts of Motor & Alternator?

1751

What is mason's gain formula?

841

3phase cable calculation formula by motor load

1071

If UG power cable both ends are to be earthed or what? If not why?

1545

What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

1883

How to select a cable size for particular load?

1381

Difference of induction motor & servo motor ??

1350

Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?

1475

what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.

2035

explain different types of d.c motors?

773

how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

1931

design of IGBT firing circuit for 11KV

2139

control & auxilary circuits used for circuir breakers

1531

State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

2061

write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

2116