View Single Post
Old 07-22-2014, 10:56 PM   #7 (permalink)
thingstodo
Master EcoModder
 
Join Date: Sep 2010
Location: Saskatoon, canada
Posts: 1,488

Ford Prefect - '18 Ford F150 XLT XTR

Tess - '22 Tesla Y LR
Thanks: 746
Thanked 565 Times in 447 Posts
Quote:
Originally Posted by Astro View Post
I am not using the contactor for reversing, it is just for isolating the battery pack from the controller, DC-DC converter etc.
Per Mechman600's post, the battery bank is isolated from the controller by a DC contactor (I would add 'or a vacuum contactor').

The polarity is an issue when you are trying to break the flow of current, like during a short circuit of the battery or when the power electronics on the controller fails.
  Reply With Quote