>Looking at your diagram, if you have an over voltage
>condition won't you open both field fuses? In this
>fault your no better than having one alternator. Or
>did I miss something?
Very good question! With the OV protection systems
of yesteryear, the condition you suggest would happen.
A single overvoltage condition would trip both alternators
off line. IF one uses the B&C regulators, they've
been fitted with selective trip circuitry . . . the
ov protection KNOWS if his alternator or some other
source is responsable for the ov condition. Only the
failed system is tripped off line.
If you build up a dual alternator system using automotive
regulators and my crowbar ov modules, you will indeed
trip both alternators off at the same time . . . you
reset the breakers for one system at a time and only
once to decide which is the failed system. In either
case, you still have the reliability of two alternators,
you don't have the convenience of automatic failure
diagnosis.
Bob . . .
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