My chassis is somehow connected to my pack negative. There is 150v from pack
positive to the chassis. There is enough amperage to make a 6 watrt 120v
night light filament glow red. I measure 14v across the bulb (VM in parallel
with the bulb.) I blew out the brush area of the motor. There was little
there.
My pack negative and negative lead to the motor are bolted together at the
controller tang. In order to isolate the problem, I disconnected them. I
then measured 157.5v from the pack positive to the negative side of the
pack. 30.0v to the neg motor lead, 29.4 to the chasis and 30 to the
controller negative. When I connected the negative lead to the controller
(motor not connected) I measured 152v between positive and chassis. When I
disconnected the controller and connected the negative lead to the motor, I
again measured 153v between pack positive and chassis.
Then, in frustration, I measured 108v between the pack positive and the
electrical ground on an extension cord! Nothing on the car was connected to
the building electrical system!
Anybody out there with any ideas where the problem lies? Or what else I
should check?
Thanks,
storm
--
http://www.austinev.org/evalbum/1059
http://stormselectric.blogspot.com/
Storm
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
positive to the chassis. There is enough amperage to make a 6 watrt 120v
night light filament glow red. I measure 14v across the bulb (VM in parallel
with the bulb.) I blew out the brush area of the motor. There was little
there.
My pack negative and negative lead to the motor are bolted together at the
controller tang. In order to isolate the problem, I disconnected them. I
then measured 157.5v from the pack positive to the negative side of the
pack. 30.0v to the neg motor lead, 29.4 to the chasis and 30 to the
controller negative. When I connected the negative lead to the controller
(motor not connected) I measured 152v between positive and chassis. When I
disconnected the controller and connected the negative lead to the motor, I
again measured 153v between pack positive and chassis.
Then, in frustration, I measured 108v between the pack positive and the
electrical ground on an extension cord! Nothing on the car was connected to
the building electrical system!
Anybody out there with any ideas where the problem lies? Or what else I
should check?
Thanks,
storm
--
http://www.austinev.org/evalbum/1059
http://stormselectric.blogspot.com/
Storm
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev