All motors can fail. This one had 40,000 miles on it when it gave up the ghost. And the failure mode appears to be unrelated to the fact it was a DC machine. Two grounded coils would have failed an AC machine just as well whether the actual cause was a defect, foreign object intrusion damage or otherwise. I've seen those ACIMs you favor burn up in a lot less than 40k.
Personally, I prefer AC motors. But I don't belittle other folks because they choose DC. I try to help them. Jeff M ----- Original Message ----- From: Cruisin <[email protected]> To: [email protected] Cc: Sent: Wednesday, December 26, 2012 9:17 PM Subject: Re: [EVDL] 9" motor Mishap You will probably want to discount what I say, however, nobody has been listening to me about DC motors until now that you experience problems. I have been installing AC for 9 years and NEVER had a motor or controller problem. All of those people on DIY that wanted to tell me how much better and cheaper DC is, are all starting to wonder if they when down the wrong road. Its a good thing the production cars didn't go down the DC road. A couple did, but changed to AC when lots of problems showed up. I guess the DC people saved a nickel and now lost a dime. lets hear from some of the DC diehards now that want to ignore what I said. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Re-9-motor-Mishap-tp4660137p4660230.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20121226/a5bb10a6/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
