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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?

2052

How many points does a Circuit can have?

2030

if two transformers are parallel & both have fault short ckt. impedance of 50KA in each case will it increase or decrease show example?

1 3561

How many points can we have in AC Circuit? Show by giving suitable example?

3 7660

-----------means a source which can supply a constant voltage to aload irrespective of the valu of load resistance.

2 4870

will there be any problem by recovering slip from single phase induction motors?

1935

What is the electrical difference between Earthing Switch (ES) and Maintenance Earthing Switch (MES)?

1 3225

how we calculate the knee point of a protection and metering CT and what is the testing procedure.

CS,

1 4661

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.

Areva,

2102

What is a LBB protection and why it is used?

Gridco,

2 9709

what is a starter ??

NPTC,

2 5081

what main difference betwenn invetter & ups & major difference

ABB,

2 7057

Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir

Vestas,

1 4206

why stay insulator is not used with stay wire for 11kv Lines. Whereas it is used for LT lines ?

Essar,

2 14433

Why are cables rated for 40 KA for 0.25 Sec fault current rating?

2009


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

High speed earth switch operation with diagram

2559


What is conventional thermal current (Ith)

4494


whatis the commertial spec. of distribution boards ?

2132


Draw torque - speed curve and load curve of induction motor? mark operating point ?

2122


What do you mean by power transformer?

1147


The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

1887


How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?

3517


If not into production, how far did you follow the design and why did not you see it into production?

2226


difference between servo motor and synchronous motor

2383


how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

2036


how to ctrl motor by use of ac or dc drive.plz explain evdintly

2104


plz send me the syllabus or any sample paper for engineer trainee recruitment if any,on ravinder911@yahoo.com

2219


power transmission pole used one support , that only for support or earthing

2009


what is x'mer ,isolation x'mer & yltra-isolation x'mer?????

2564


STATE WORKING OF VACCUM CIRCUIT BRAKER?

1981