Constant Power AC motors
John Horgan


#1 Feb 2, 2013
Hi All

Can anyone give me the formula to calculate the fall off in Torque with respect to the increase in supply frequency of an AC motor when operating in the Constant power region??

Thanks in advance.

Rosemount, MN

#2 Feb 13, 2013
Hmmm that's a tough one. This STP calculator might give you a step in the right direction...

Tell me when this thread is updated:

Subscribe Now Add to my Tracker

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Electrical Engineering Discussions

Title Updated Last By Comments
certification / re-certification Jun 6 stephen 2
Load Calculation for Office Blg. Apr '17 Arausio13 1
Complete Noob Question Apr '17 Enargins 1
false feeder tripping Feb '17 NKA 1
NEC - protection against indirect contacts in c... Jan '17 CMassa 1
IR Windows Jan '17 stephen 1
Low Voltage vs. kilowatts used (Jan '08) Jan '17 Everett Boles 2
More from around the web