Interested to Buy Any Domain ? << Click Here >> for more details...
why rotor winding in induction motor is not earthed.
normally we uses star winding in rotor .why?
- 3 Answers
- 8809 Views
- Anglo Platinum, TATA, I also Faced
- E-Mail Answers
Answer Posted / sugun_eee
DEAR
YOUR REPLY ITSELF STATING "IN CASE OF FAULT" AND ALSO NO
EXERNAL FORCES WILL CAUSE TO DAMAGE THE ROTOR CKT. UNTILL
UNLESS INSULATION FAILURE FOR THE ROTOR WINDING. HENCE IF
THE ROTOR IS HEALTHY IT WON'T BE EARTHED. AS UR STATEMENT
IT WILL CREATES HEAVY VIBRATIONS AND COUSES MOREHEATING OF
THE STATOR.
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
Explain the process of commutation in a dc machine.
two way ckt diagram can be drawn by how many ways? give diagram
How to calculate that clean water supply in one Day from 150 KLD STP?
What's the difference between non break power supply and non break non short break power supply
What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.
role of europe union in UK safety legistlation (electrical safety)
What is the difference between indoor and outdoor transformer
How do we find the rating of a transformer, if it got burnt badly.
what's the exact magnitude of current, flows through Neutral?
xpression 'document.FrmQF.myemail' [
why the India electrical supply transmission loss is high when compare to us
Define corner frequency?
A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3
sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
