wrote:
On Jun 9, 9:57 pm, wrote:
On Mon, 8 Jun 2009 21:36:59 -0700 (PDT),
wrote:

On Jun 8, 2:43 pm, Anthony W wrote:
It would be impossible for the alternator to continue to make power if
the wire to it were disconnected. There would be no power to the field
coil and therefor no output.
In an alternator with an integral regulator the output feeds the
regulator via an internal connection and therefore the field. It'll
still produce. But if the output to the aircraft is run to a pullable
breaker on the panel, it can be shut off and the alternator can go
play with itself. Only problem is that the output line to the breaker
is still live and can cause trouble in the event of a fire or forced
landing.
Dan
Not the only problem. If the alternator full fields offline voltage
can excede 300 volts in the alternator - and that voltage goes to the
feild. The alternator WILL destroy itself in this case - and it CAN
burn.

I would definitely want the alternator modified so the feild is
externally fed ONLY.

And how would you go about doing that?

Bob
Take the alternator apart--remove the regulator..the "field" in an
alternator is the ROTOR--which is energized by the brushes.
one brush goes to the regulator--extend it to the outside.--the other
brush is usually grounded or tied to the stator---
choose a regulator to suit--A Ford works on most---but my little
nippondenso had to have a Mopar pickup regulator--You may have to get a
rebuilder to help you.--Jerry