Le 15/05/2020 23:33, William Daniell a crit:
Will,
There is a law in physics measurements : the more parameters you
measure, the more you scratch your head^^!
That said, you wrote that your bus - or battery - voltage remained
within the "green" limits during each of the events. So no reason to
suspect the voltage regulator.
The only item capable of supplying more than the 21 amps of the
alternator is the battery, but while doing this its voltage would sag
due to internal resistance (Cf Ohm's law for a generator). 70 amp is no
trifle.
So the main probabilty is an ammeter artefact. The best way to measure
currents is with a Hall effect sensor, as the shunt may induce side
effects in your circuits with high currents.
But first things first, without independent and reliable voltage and
possibly current measurements or logging, no assumptions can be made.
Concerning disconnecting the battery while running, not sure it would be
a safe thing to do, especially in flight :
--
Best regards,
Gilles
http://contrails.free.fr
http://lapierre.skunkworks.free.fr
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