On 14 Sep 2017 at 17:19, Roger Stockton via EV wrote: > *IF* the sophisticated controller were replaced with a simple contactor > controller, then if the contactor controller allowed the entire 96V battery to > be connected directly to a stalled motor (~0 ohms), the voltage drop across > the battery internal resistance would ~approach~ 96V - 0V = 96V, and the peak > current into the motor would approach 96V / 0.08 ohms = 1200A.
Quite so. The Comuta-Vans had 72 volts of 105-minute golf car batteries, a contactor controller, and awg 1/0 wiring. In the early 1980s, a DOE test of one recorded peak currents of over 1300 amps. The testers did not seem to consider that a good thing. There's a good reason that you tape up your wrenches when you work around golf car batteries. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
