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| Ev Archive for July 2000 |
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| 1233 messages, last added Wed Aug 08 18:49:09 2001 |
[Date Index][Thread Index]
Re: Fuse questions
I had two 500 amp Gould AmpTrap A50 semiconductor protection fuses. They were
rated for 600VAC and derated for 250VDC. I had one fuse in each 144V string
of Hawker Genesis batteries. I routinely (start-up) drew 300-400 amps from
each string and occasionally drew 700 amps through each 500 amp fuse. Then
one day I had a freshly charged pack and John Wayland driving my car with a
few...shall we say...performance starts...well...both fuses went silently...I
think...the tires were groaning and squeeling so loudly I didn't hear any
bangs. I now have two 800 amp fuses.
Anyway, these fuses will routinely take more amps than they're rated for.
300 amp fuse for a 400 amp controller...no problem. A 450 amp fuse will
probably never blow...uhhh...no don't quote me on that...I learned enough
about EVs to know...NEVER say "never".
Rich Brown
San Jose, CA
Dualin'7 was once Waylandized...(Is that anything like one hour
Martinizing?)
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