nuckolls.bob(at)aeroelect
Guest
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 Posted: Fri Apr 23, 2010 1:30 pm Post subject: Alternator field feed - fuse vs. fusible link |
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At 09:48 PM 4/22/2010, you wrote:
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Just to play the Devil's advocate:
The breaker is part of an overvoltage protection circuit, not a
conventional B lead breaker prone to nuisance popping. Why would
anyone be resetting this breaker in flight after what is most likely
an overvoltage event?
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While we do our best to fine tune the dynamic
response of all over-voltage protection systems,
the designs are based on 99% probability dynamics.
I.e., tailor your circuitry to these curves . . .
http://www.aeroelectric.com/Reference_Docs/Mil-Specs/Mil-Std-704_excerpts.pdf
. . . and you're good to go . . . MOST of the time.
In 40+ years of designing and manufacturing various
ov sensing systems, there have been a few instances where
antagonists on the particular system were more aggressive
that the 99% curves suggested. Hence, virtually every
ov protection system has a pilot-resetable feature.
Of course, like any breaker-trip, the most you want to
tweak the tail of the tiger is one time before leaving
it off and go to plan-B.
Bob . . .
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