ground fault leakage

[Rod Hower <rodhower@ameritech.net>]

I spent several hours trying to figure out
why my TEVan charger kept tripping, I thought
it was due to ground fault leakage.
The TEVan has 6 battery tubs, 4 with 6 batteries
and 2 with 3 batteries.
All are interconnected with Radsox connectors for
quick disconnect.
Using my multimeter and a 10k ohm resistor I measured
the following voltages (AKA leakage)
This was measuring between Chassis and battery positive
and negative after disconnecting the Radsox
connectors between battery tubs
		positive	negative
overall		110vdc			-68
Tub1		25Vdc			-46
tub2		71			-55
tub3		86			-50
tub4		80			-27
tub5		73			-5

So it appears from the measurements that there was
big time leakage in tub2.
That is the leakage from battery positive to increased
from 25vdc to 71vdc.  So I dropped the tub
and cleaned it quite well.
After reconnecting the leakage on the positive pack
side was higher!
overall		134vdc			-55
What am I missing here?
rod