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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is potientiometer.What is the use of it.

1 3677

What are the types of relay ?

3 4849

How to increase home power factor? Can we connect capacitor directly? How to select capacity of capacitor?

5 6458

why only 11kv level is used for transmission purpose? why not 230v?

7 11964

what is meant by unity power factor?unity means one why dont call 2,3,4......?

6 7880

What is percent age of scrap of wires as per IE Rule Clause No in wiring for House and Industrial wiring ?

3 2904

how does damper winding produces torque in synchronous motor?

1 3920

1.what is meaing of ups,and used in softwares and sud stations,and main partes in ups. 2.main partes of the Disel Genarator. 3.main partes of the chiller and safty equipments.

2 3193

1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

2 5388

a transformer can beb used as aload?give discription

Esses Eltech Systems,

2 2957

with 3 phase board on a 63 amp rcd is it ok to have 6 electrical showers 2 on each phase and what problems could happen

949

How to identify Motor leads in their order coming out from winding without tag (U1, V1, W1 & U2, V2, W2)?

ABB,

6 41677

Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?

4 8907

For the requirement of a furnace of temperature range up to 1200 oC using silicon carbide rods, What is the required rate of transformer needed (please do it with all details)?

Intel,

1091

why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

Siemens,

1119


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Un-Answered Questions { Electrical Engineering }

how hydrogen cooled alternator undergo maintanence ? that is hydrogen when come in contact with air can result into explosions .

1084


Block diagram of Power line communication?

1435


What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?

1114


If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1028


How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

1133






advantages & disadvantages of Lagging and leading power factor .

8540


HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

1208


The loads are connected with phase and ground then why current flow as the loads ?

1088


How LT megger works ?

1077


Draw transformer phasor diagram.(full load,no load)

3262


can u describe the method used for protection of transmission line.

1185


electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

1396


What are the types of feedback oscillators?

213


in Telecom DC system-why positive +ve is made earthed.and - ve is fed to load.

1540


tell me about roaster switch .& what is the function in transmission & distribution?

1727