Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

correct power factor with synchronous motor?

Status
Not open for further replies.

meeko

Electrical
Jul 16, 2012
21
CA
Hi, I was wondering if anyone could give me an example how to correct power factor with a synchronous motor

I know how to correct lagging pf with a capacitor bank, but in school never went over how to with a synchronous motor.

If anyone has an example problem i could study with a 1500w synch. motor or something along those lines, or any papers would be greatly appreciated.

I know that when a synchronous motor is over excited it produces a leading power factor and thus correcting a lagging pf, but i dont know how to calculate it out.

Thanks
 
Replies continue below

Recommended for you

Successfully using a synchronous condenser depends on the machine being smaller than 'the system' that it is connected to. If the machine is of similar capability to the system then it will tend to influence the local busbar voltage. A stiff system will allow significant reactive power to be flexed without much corresponding voltage change. In short you need to know more than just the machine parameters, you need at least a rudimentary model of your electrical system VAR flow is a result of how the two interact. If you can get enough data to populate something like a SKM PowerTools model then even better.
 
Awsome, Thanks for the quick reply!
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor

Back
Top