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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why energy storing capacity of magnetic field is much higher than electric field ?

1 4075

we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1032

types of transformers?

Torrent Power,

1 3267

we the the value of frequency is 50 HZ in DG then why we said the value inductive rectance is zero in DG?

1 1801

we know the value of the power factor is 0.8, we know the power factor is not depends upon the load ,then why we cant design the power factor in transformer ?

1 1342

diff b/w elcb and rccb

1306

Y phase plates are used in transmission line??? what is there need???

2015

How to know of any cable size if there are not written on cabl?

APGenco, El Seif,

1065

How to know any size of cable if there are not written on cable? Answer must be theurical not by experience.

El Seif,

1291

How much must be gape bitween 2 cable on cable tray?

El Seif,

1 1441

I NEED THE CABLE SIZE. I=800A AND P=315KW

ABC, Wipro,

2 3999

why phase plates are used in transmission line????

1 4165

Why squirrel case induction motor bar is skew permanently?

Nesco,

1 1802

Why does the rotor rotate?

Elin, OPTCL,

1374

Why does the rotor rotate?

Machino Polymers, OPTCL,

1 2742


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Un-Answered Questions { Electrical Engineering }

Ac generato how produce power I need for camplet defination

792


what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1179


how to measure winding resistance of single phase motor?

1444


How cable from Kit-Kat to main switch, from starter to motor are designed?

1181


How to convert 2 phase to 3 phase electricpower in induction moter?

1186






why the check zone and main zone are used for Busbar Protn. scheem?

1236


volts=230 c=10mf a=??

1152


draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

1083


In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

1107


What is power factor why we should maintain the power factor unless what will happen

800


what are safety measures in /control in diesal engine/ explain them?

962


why HT armoured cable does not glanding

3205


5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

2871


before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

694


Name one of major transformer company in KSA ?

305