Wow. Mike when you kill 'em, you kill 'em dead as a hammer.
One of the things on my list to do after this course on Electric Machines is
over (next week is finals) is look over the Etek and analyse it more before
employing it. A PM motor is considered a special case of a separately
excited motor (no field to excite). Methinks some current
limiting/temperature sensing is in order before I add another dead Etek to
the pile.
Aluminum melts around 1600 F, so I doubt that the slag you see is aluminum.
Solder goes liquid well below 500 F depending on the mix. It seems some form
of ram/forced cooling is seriously in order for the Ezuki design.
By the way, a course in Electric Machines will tell you more than you ever
wanted to know about how DC motors operate....and AC motors, and
transformers too. It is a hard course with moments of high interest and
terrible realiztion that there is too much to learn about the world of
electric machines.
Here's a link to material about DC machines:
http://www.ee.ryerson.ca/~courses/ele637/Lecture%20Notes/ELE637_Chapter3.pdf
Doug in South Carolina
----- Original Message -----
From: "Mike" <[EMAIL PROTECTED]>
To: "ElectricMotorcycles" <[email protected]>
Sent: Tuesday, July 17, 2007 9:19 PM
Subject: [ElectricMotorcycles] Throw another Etek on the barbie
Stick a fork in it. I think it's done.
