If the field resistance is high enough so only a few amperes flow (and this
would be normal), you can "flash" the field as you indicate with a 12V
battery. All that is needed is that you establish some residual magnetism.
How is the field supplied? Could you give more information? The problem is
that the field must be supplied from the AC through a rectifier that may be
part of the regulator and the rectifier gives the same polarity. (It may
be simply a matter of looking for + and - marks somewhere and the following
would not be needed)
I would suggest disconnecting the supply between the AC side and the
regulator/field and with the generator not running, connect the battery
across the field/regulator terminals so that a current flows- no
current -reverse the battery. If you haven't an ammeter then a compass
will do- put it over the wire- note the position, connect the battery and
note any deflection which indicates current. otherwise, try it one way,
reconnect normally, try it out. If it works-fine- otherwise repeat with the
battery connection reversed.
However- can you give more information- even what wires go where?
Don Kelly email@example.com
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