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Old 02-12-2017, 11:09 PM
lndwarrior lndwarrior is offline
 
Join Date: Mar 2015
Location: Cloverdale CA
Posts: 253
Default Over voltage alarm

After 70 hours of flight I got an over-voltage alarm on climb-out today. This is the first time I have had such and indication.

I have a B&C alternator with a Vr-166 voltage regulator. All new.

I also have a Scad tech high/low voltage alarm light.

Battery has been charging just fine. No previous indications of a problem. During high RPM climb-out today the alarm light came on. When I leveled off and reduced power it immediately went off. I did look a the volt meter when the alarm came on and it was reading slightly high - maybe 15 volts (analogue, so not precise).

The factory default alarm for the Scadtech is 15 volts.

B&C notes alternator output between 13 and 15 volts.

So, do I have a problem? If so, replace the regulator?

Or should I set the high volt alarm just slightly higher, like 15.2 volts, since normal charge is around 14.6?

Appreciate any opinions!

TIA
Gary
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