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Old 11-27-2007, 03:17 PM   #430 (permalink)
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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09-13-2007, 03:33 Pm

Turns out there's a discussion about this on the EVDL this week. The issue is DC arcing, and one of the old hands says:

A AC breaker at the same voltage of the DC source, does not have the larger
contact pads and spacing as a DC breaker. The spacing is contacts spacing
is wider in a DC breaker, so when a DC breaker is activated, there will be
less arc over.
He recommends going 3x over the AC rating for DC use:

A circuit
breaker design for 3 hp load on AC is only good for 1 hp on DC. So it about
a 3 to 1 factor.

Mouse: I'll post a description of the lug making process soon, and come back and add pics later. I haven't made any new ends since last weekend. This weekend will probably be spent figuring out how to mount contactors etc.

I did sneak out and replace my fried potentiometer today though.
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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