The regulators shunted un-needed current to a load.
     > failures were ALWAYS in a SHORTED condition.
     > wich fried the windings/wiring.
     > as all with suzuki's GT250 (74) gs-750 (78) and
     > gv1400gdg (86)
     >  Stick with what works.
     > Louis

Louis,
 I worked for Kawasaki which used a permanent magnet alternator
900 ZI '73-about '83 with fewer problems than their field and stator
systems. They did NOT short to ground or load, that is old zenier diode
stuff like the brits used in the 50's! The system opened the "Y" winding
to cut power. This was one of the most reliable systems I ever worked
with. The advantage is that the system will generate power any time
the engine is running. The disadvantage is the weight of the system,
most weighed 7-8 pounds which is quite heavy especially for a back-
up system. Lastly, the permanent magnet alternator drew more power
when operating by a small percentage. I am not an EE but it was
explained to me that there was some "field quenching losses" when
the sine wave passed through the windings. I sure there was waste
heat generated there as well. I NEVER saw an electrical fire on any
of these machines.
Bill Jepson

 
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