Powered by Blogger.

April 21, 2012

Comparison between synchronous and induction motor

12:24:00 PM - By Vikash Sharma 3

Comparison between Synchronous and induction motors.

  Synchronous Motor:-

·  It has got no self-starting torque and some external means is required for its starting.
·     Its average speed is constant and independent of load
·     It can be operated under a wide range of power factor, both lagging and leading.
·       It required the dc excitation so it is a doubly excited machine,.
       No speed control is possible.
·     It’s used for supplying mechanical load as well as for power factor improvement.
  Its torque is less sensitive to change in supply voltage.
·       Breakdown torque is proportional to the supply voltage.
·       It is more complicated and cost more comparatively.
However, synchronous motors with speeds below 500 rpm and rating exceeding about 40 kw or with medium speed from 500 to 1, 00 rpm and rating exceeding about 500 kw cost less than induction motors


 Induction Motor:-

  1. ·       It has got self-starting torque and no special means is required for its starting.
  2. ·       Its speed falls with the increase in load and less than synchronous speed.
·    It operate at only lagging power factor, which becomes very poor at light loads.
·    Its requires no dc excitation so it’s a singly excited machine.
·     Its torque is more sensitive to change in supply voltage.
·  Breakdown torque is proportional to the square of the supply voltage.

It is more simple and cost less than Synchronous motor

About the Author

I am Vikash Sharma an Electrical Graduate and author of This Technical Blogs. Follow me Google +
View all posts by admin →

Get Updates

Subscribe to our e-mail newsletter to receive updates.

Share This Post

3 comments:

  1. Howdy! I'm at աork browѕing your blog from my new iphone!
    Just wanted to saү I love reading through your blօg and look forward to all
    your posts! Carrƴ on the outstanding work!


    Look into my web page: Camaro Performance Parts

    ReplyDelete
  2. Exeгcise іs essential fߋr those with еndomorph bodies since they
    typically have trоuble losing weight and keеping
    it off. Now, my favourite type of shake is pгetty straight forwarԁ.
    Lіfting heavier weights means you will tear and break the muscles down quicker,
    whicҺ means they will repɑir and grow back stronger.


    Here is my weblog :: mi40 workout pdf Site

    ReplyDelete
  3. Hi,

    This post is really nice and informative. The explanation given is really comprehensive and informative. I am feeling happy to comment on this post.

    Induction Machine

    ReplyDelete

Please Give Me Suggestion Through Your Valuable Comments!

PRIVACY

All Contents are belongs to vikashkumarsharma.blogspot.in Do not Copy and Published anywhere without permission.

CONTACT ME

Email me : vssharmavikash@gmail.com New Delhi India

ABOUT ME

I am vikash Sharma an electrical engineer,I am author of this blog.You can follow me #
© 2014 Tech Chiee. converted by Bloggertheme9
Powered by Blogger.
back to top