Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 19 May 2003 09:30:41 -0400 Message-ID: X-Original-Return-Path: Received: from aerosurf.net ([216.167.68.224] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2353738 for lml@lancaironline.net; Sun, 18 May 2003 19:20:38 -0400 Received: from ieee.org [208.252.252.82] by aerosurf.net with ESMTP (SMTPD32-6.06) id A6905D48002E; Sun, 18 May 2003 13:26:08 -1000 X-Original-Message-ID: <3EC8153C.31B72B41@ieee.org> X-Original-Date: Sun, 18 May 2003 16:20:28 -0700 From: "Charles R. Patton" X-Mailer: Mozilla 4.7 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: LN360 Alternator breaker popping on gear up/down ops References: Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit I don’t recall the alternator field breaker popping on a single gear op, but multiple ops such as touch-n-go’s, or emergency practice during bi-ennials has caused it to pop. The wiring is pretty much AeroElectric’s schematic with a B&C LR-3 regulator, LR-60 alternator, and B&C 100-1 (12 V 25 AH) battery. My guess is that a voltage transient is tripping the crowbar in the regulator, but it’s not clear where the transient is coming from as all relay coils have MOVs or diodes on them. I’ve never noticed when exactly the breaker pops – I typically notice it after trimming out the climb and checking. I’m hoping someone with similar wiring may have already figured this out, else I’ll start the troubleshooting process. Thanks, Charles Patton N360JM