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)

Reply via email to