Electrical Engineering Interview Questions

why do some transmission towers have two insulators at one side and three insulators at the other side

3776

sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

1495

I am having a DG set.The 415 V from Generator is step up to 460 v and then the same is used for Induction furnace. before Step up, I am connecting LT load to my factory use. When Induction furnace is in service from DG, when i try to start a motor, the generator is tripped.Please tell me the reason.

4428

in ceiling fan and table fan what is the rotating part and what is the stationary part?

9054

What is breather? why we use it ?

3947

How to set a Zone 1 distance relay for distribution feeder?

1524

why tertiary winding is used in transformer with diagram?

1770

why single induction motor is not self starter?

8165

for 644KW load which MCCB should i use

6993

what's the thickness of 1.5sqmm wire

Bhel,

4901

Give 3 phase transformer connections for 24 pulse rectifier using thyristors.

1601

what is the difference b/w ground & virtual ground?

1829

what is the effect of change in supply frequency on load angle of synchronous motor,all other parameters remaining same?

1886

we use 3 phase supply for induction motor why not use two phase supply .

TLC,

5899

how do the stepper motor works.

3414

Un-Answered Questions { Electrical Engineering }

What does the term power factor shows?

589

What are books to be referred for KPTCL exam?

3205

Why we cant store an ac power. If we coo store in which device we can?

1629

What do you understand by external characteristics of a d.c. Generator?

625

What is marx circuit?

637

grr resistance & contrator malt continuous

1659

1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

1207

can u describe the method used for protection of transmission line.

1604

Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

1598

Can any body tell me the different types of LT cables & their application.

1607

What is tranformer differtial?

1453

What is Bolted fault?

1671

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

1513

What will happen if i replace a inductive proximity switch with photo sensor in a machine?

1389

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1471