X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 01 Jan 2008 15:49:33 -0500 Message-ID: X-Original-Return-Path: Received: from [206.246.194.60] (HELO visi.net) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2626784 for lml@lancaironline.net; Tue, 01 Jan 2008 08:26:45 -0500 Received-SPF: none receiver=logan.com; client-ip=206.246.194.60; envelope-from=rpastusek@htii.com Received: from [71.178.198.10] (account rpastusek@htii.com HELO dlhtpax009) by visi.net (CommuniGate Pro SMTP 4.2) with ESMTP id 249606182 for lml@lancaironline.net; Tue, 01 Jan 2008 08:25:33 -0500 From: "Robert Pastusek" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: Glass Panel Back-up X-Original-Date: Tue, 1 Jan 2008 08:25:59 -0500 X-Original-Message-ID: <019801c84c79$dbc3dfa0$934b9ee0$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0199_01C84C4F.F2EDD7A0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: AchIk/Ilwx+TM314TrC2IJQGuOnksQD5NTjg Content-Language: en-us This is a multipart message in MIME format. ------=_NextPart_000_0199_01C84C4F.F2EDD7A0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Here's a question: where should you source the power for your xfeed contactor coil, left batt coil, right batt coil? Since at least one side of the Contactor would have BUSS Power (other wise there would be no need to actuate the contactor), you diode feed the + from the each side of the contactor to the coil. Then supply a ground to actuate. A fusable link in series with the diodes would provided adequate circuit protection. [r.t.s. ] This is the way I wired my buss tie relay. It's fed through isolation diodes by both batteries. These are protected by 26 AWG fusible links. Power in either system will allow you to close the cross-tie contactor. Works well in testing; have not yet flown... L Bob P ------=_NextPart_000_0199_01C84C4F.F2EDD7A0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Here's a question: where should you source the power for your xfeed contactor = coil, left batt coil, right batt coil?

 

Since at least one side of the Contactor would have BUSS = Power (other wise there would be no need to actuate the contactor), you diode feed = the + from the each side of the contactor to the coil. Then supply a ground to actuate. A fusable link in series with the diodes would provided = adequate circuit protection.

[r.t.s. ] =

 

This is the way I wired my buss tie relay. It’s fed = through isolation diodes by both batteries. These are protected by 26 AWG fusible links. = Power in either system will allow you to close the cross-tie contactor. Works = well in testing; have not yet flown... L

 

Bob P

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