Induction Motor

i will do better than that...i will give you a link which will help you learn quite a lot about them .. here it is : cowern papers.pdf

If you still have doubts, please ask.

"If you give a man a fish, you feed him for a day. If you teach him fishing, you feed him for life"

sir no pd f fail open?plz help us

Surprising...maybe you don't have latest Adobe ACrobat reader?

Anyway, here is a html link : http://www.motorsanddrives.com/cowern/contents.html

thanks sir 4 help,plz give me control circuit diagram of 3 phase induction motor, who to operate this star delta circuit ,plz this topic help me thanks best regard

If you are sure you want ΥΔ starting, there are a number of threads in CR4 .. you can search using the search block at right. Here is one thread :http://cr4.globalspec.com/thread/55459

However, if you want to learn more about various starting methods, here is a document you may like : http://www.djtelectraining.co.uk/downloads/ADL%203%20Ph%20Induction%20Motors.pdf

You don't want help, you want someone to do the work for you.

kvsridhar has provided more than enough information to help a reasonably intelligent person complete the task.

The reference to being given a fish vs learning how to catch a fish on your own is obviously wasted on you, as well.

Good luck with your future. You'll need it.