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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

in case of induction motor when overload condition or any short ckt. why stator winding burn not to be rotor winding

 2 3972

when we connect a ceiling fan to a inverter's output voltage, it give some noise, why?

Luminous,

5 10394

what is mean by hormonics & surge? and it's effects?

TCS,

1 2420

what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?

1590

what is PID control in VFD drives?

AES,

1492

hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"

 1602

Why should we hire you over the others waiting to be interview?

 2351

What are your future plans for the company if permanently employed?

 1691

what are iron and copper losses

 4 15698

WHY CURRENT DECREASES WHEN VOLTAGE IS INCREASED IN A CURRENT TRANSFORMER ?

Sterling Wilson,

5 9576

in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

 1 3189

What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.

 1831

the need of star to delta anddelta to star

 2 4000

Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case

 1 3259

What will happen if a dc source is given to a tubelight. Will it work or wont it work....

 1478

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Un-Answered Questions { Electrical Engineering }

What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

3008

could you measure current in parallel?

675

Why transformer used in UPS??

1023

Mention the disadvantages of low power factor? How can it be improved?

667

Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?

1245




What are the advantages of hydropower?

649

any earth foult trip the relay but in welding time not trip by earth foult

2716

Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

1616

How to confirm the Phase shifting Transformer VECTOR GROUP relation , as below ZNy11.45d10.45-ZNYy0.15d11.15

2756

What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

1617

what is submersible pump?what is different between motor and sub motor?

1591

Safety of on line ups

1481

what is the purpose of bypass mode in energy lighting transformer?

2048

what is meant by surge? what we called for high currents?

1483

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

1558

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