How does that wire in ? Has some pretty small looking wires on it. The wiring diagram did not open up on the B&C site.
Or an overvoltage annunciator. Second most critical to a low oil pressure annunciator. Looks like that battery cooked for a long time.
Didn't say over voltage devices weren't good. But an alarm (if noticed) would have allowed him to protect the battery because this event occurred over many minutes.Overvoltage events, though rare, can happen almost instantaneuously. You would not be able to manually shut your alternator down in time to save your avionics in such cases. You need automated overvoltage protection to save the day.
Does anyone know of a supplier for a "free Standing" 14 v system over voltage protection module aside from the built in models usually included with the Alt or external regulator?
Very good to know! Might look that way at next replacement opportunity.Be aware the common Plane Power alternator has a crowbar built into its internal regulator.
Not to highjack the thread, but if you install a B&C regulator (which has an O/V protection) take care to cover it in a way so no water could enter in it. I experienced a recurrent electric system fail, included continuous alternator field braker trip which almost made me abort a travel in Greece, untill I discovered it was dued to water inside the regulator. Regulator is installed in the upper portion of the firewall (engine side) and of course is covered by the cowl. However, I suspect that when parked outside during rain, water enters between the cowl and the upper fuse skin and then in the regulator. See my RV9 site, FLIGHT! page for details.
Camillo
Why not just put the crowbar on the B+ CB or ANR?
Actually that is what i ve been running since 2008. Good performance with No problem.buy a 40amp DENSO alternator for 2000hrs trouble free operation----John