Gary Lau wrote:
I was going to post this: I thought that washing mashine motors were induction motors - not brush/universal motors? But I've not looked closely/recently. But before hitting Send, I Googled "Washing machine motor". There appears to be both 1725 induction-types, and then 10,000+ RPM types. Perhaps regionally?
Older machines use conventional capacitor start induction motors, often with two windings for two speeds, and a complex mechanical transmission to run the drum back and forth and/or spin.
New machines use a 3phase inverter (which is very, very cool) to drive a motor with no transmission.
Of significant interest was this link to a Chinese motor vendor, advertizing 3000RPM synchronous washing machine motors: http://www.chinasuppliers.globalsources.com/china-suppliers/Washing-Machine-Motor.htm
Is that for the drum drive, or running the timer. _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla