---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sun 07/13/03: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:12 AM - Re: OV protection (Fred Fillinger) ________________________________ Message 1 _____________________________________ Time: 06:12:20 AM PST US From: Fred Fillinger Subject: Re: Europa-List: OV protection --> Europa-List message posted by: Fred Fillinger > Doesn't Rotax specify a 50 volt cap? I would think that a > momentary spike across the cap. would be tolerated. Have you looked > at "Lectric Bobs" over voltage unit and how its wired ? > ... > Come on Fred, lets get yours in the air!!! Your are getting > close aren't you?? > > Jim Nelson Yes I have the Aeroelectric circuit for PM generator OV protection. Rotax says 25V cap, but if a battery is connected the capacitor isn't accomplishing much. The battery should suppress any transients far better. If the battery is disconnected, then what the capacitor is intended to accomplish and what ratings are adequate is conjecture with a regulator of unknown design. I am very close to finish painting, and have just acquired a flatbed trailer. Hopefully soon now! Regards, Fred F.