Leburg alternator CB tripping

[Stuart Ord]

I've got a Leburg dual ignition system on my VW1834 engine. It uses a Honda generator on the crank and two small lead acid batteries which is the normal arrangement, and has a Leburg-supplied control unit on the panel with 3 CBs for Alternator (12amps), Backup (1amp) and Services (5amps).

Occasionally the alternator CB will open, but the others don't. It doesn't seem to be influenced by load on the electrical system, and I've read in some old pilot's notes that this is likely to happen if the voltage gets too high. I am seeing voltages occasionally higher than 15v according to my panel voltmeter.

Has anyone experienced this problem, and found any remedy?

Thanks

Stuart Ord

[cardiffrob]

Could it be overheating the regulator? Might be a good idea to consult the motorbike forums for tech answers since they had a lot of stuff on there when I was wondering why there were so many burnt ones on the shelf in the motorbike scrapyard!

http://cbrforum.com/forum/tags/overheating/

http://cbrforum.com/forum/cbr-600f2-16/ ... get-97840/

[Stuart Ord]

Hi Rob,
Thanks, that's a good idea. It is more prone to doing it when ground running with the cowl on, so that sounds hopeful. Thanks for the links. Maybe it will behave better when airborne (awaiting Permit to Test Fly).
Stuart