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Electrical Engineering Interview Questions
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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

 4 10532

How I calculate the ELCB for circuit breakers?

 1649

Why we use Electrical energy rather than any other type of energy, mostly? Explain behavior of open secondary CT and short circuited secondary PT in energized condition?

 1354

what is skin effect and corona discharge ?

Asian Paints,

4 9914

WHAT IS EXTENDED DELTA AUTOTRANSFORMER? WHERE WE USE THAT?

Amtek, TATA,

2 7403

How can transformer winding insulation be measured (Delta & Star Connections)?

 3 4381

In Extended Delta transformer, by which method we can measure the extended angle of transformer?

Usha Martin,

1 6897

What is RCBO? hw it works

 2 4929

Do anybody has a design software or tools for the selection and design of electromechanical components???

 1 2691

Why the tank of transformer is made rectangular not circular??

 9 12182

what is wave trap? And how it works?

 3 8223

what will be the effect if we increase the excitation of a alternator??

 3 5115

what is the difference between effective earthing and resistive earthing?

REL,

3 6146

cb used in railway applications is?

NTPC,

2 8141

we can use airconditioner for cooling the winding of transformer ,if not why?

 3 4236

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Un-Answered Questions { Electrical Engineering }

What is MS-EXCELL?

1644

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

1732

Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.

1232

Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC

1563

A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

501




Difference between control junction box (cjb) and power junction box(pjb)?

2960

what is the main function of capacitors in mccs.

1259

if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

989

electrical knowelge

726

What’s electric traction?

662

WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?

1899

What do you mean by a phase angel of instrument transformer?

629

What are the main parts of central chiller plant? Explain the function of each stage.

4309

What is the function of capacitor in electrical circuits?

600

briefly explain principle of resistance welding

1399

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