Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is called star connection and delta connection also purpose of this connections?

Siemens,

3 9370

what is exiter winding,stator winding,avr?how it will work?

Siemens,

1 3888

how to make neutral to ground voltage less than 5v? my house is under the high voltage transmission line so,proper grounding using rod salt n coal doesnt help me..so wat i do as i cant operate my computer ..this high voltage cause great problem to the motherboard i already two times replaced it.in my house voltage is coming near to 25 v between ground and neutral.plz kindly post ur answer to my email id manish77777@gmail.com ..

3 11414

What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

1529

why we used servo motor insted of inducation motor?

1 3395

what is IP 55 & IP 54 ?

1 5192

why we used servo motor insted of inducation motor?

1 3471

what is mind in cable

BARC,

1567

what is different between IP55,IP54 and IP66?

ABB, Global Industries,

2 55567

which technique servo motor tested o.k or faulty ?

ABB,

1 3820

Please explain me abt PQ diagaram in the power sector.

1918

Pls explain about vfd control?Where it is used, Give some example?

Siemens,

3 5614

what is the design voltage for 6.6KV 2000 KVAR HT capacitor?

1 3519

What is required of exietation to the alternater.

4 5962

what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY

L&T,

1773


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Why is a synchronous motor always star connected??

2104


Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

2484


a governer in an Ic engine controls the

692


How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

1583


Define phase lag and phase lead?

640






What are the advantages of skewing of cage rotor conductors?

706


what is the principle of operation of CFL ??

2203


bitumar

1795


What is q factor?

664


when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

1262


Why generation voltage in thermal power plant is between 11kv to 33kv?

614


Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

1739


HOW MANY TYPES OF FUSE?

1637


for hipot test on 33kV busbar, we will test on 70 kV or 56kV, what is the acceptable leackage current?

608


Explain about 3 phase motor fault current calculation with examples?

2410