To do series/parallel switching I think you need two poles, and one of those needs to be double throw. So it could be done with a DPDT switch for low power systems, and a reversing contactor for high power systems. Or one SPST contactor, and one SPDT contactor.
Regards, Andrew in NM On Mon, May 5, 2008 at 11:31 AM, damon henry <[EMAIL PROTECTED]> wrote: > You use contactors to physically rewire the motors. In series both motors > see the same current in parallel they both see the same voltage. > > damon > > > > > ------------------------------ > > > Date: Mon, 5 May 2008 10:13:45 -0700 > > From: [EMAIL PROTECTED] > > To: [email protected] > > Subject: Re: [ElectricMotorcycles] series-parallel 2 motors > > > > > > > Would it be useful to use a two-channel controller for the two motors? > or is that just complicating things to no > > purpose? The robot people commonly have two-channel controllers in the > 250A range, which I realize may not be big enough. > > > > How do you make the parallel-series switch, or did I miss the > explanation already? > > > > > > j. > > > > > ------------------------------ > Windows Live SkyDrive lets you share files with faraway friends. Start > sharing.<http://www.windowslive.com/skydrive/overview.html?ocid=TXT_TAGLM_WL_Refresh_skydrive_052008> >
