--> AeroElectric-List message posted by: Jan de Jong <jan_de_jong@casema.nl>

Studying the Z-figures I find (I believe) that in the case of a failed 
contactor it is possible to charge the battery through the E-bus diode 
and Alt Feed switch - if one is so careless as to close that switch 
while leaving the Alternator on. Generally worse and more likely: to 
switch the Alternator back on after a stretch of battery-only operation 
without opening the Alt Feed switch first. Diode and switch are not made 
for that.
I think it is important to reserve the closing of the Alt Feed switch 
for the occasion where the Alternator has failed and is kept off for the 
duration (I wonder if an interlock might be devised that prohibits 
having both Alt Feed on and Alternator on?).

Jan de Jong

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