---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 09/30/12: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:59 AM - Re: Re: AIRCAM Schematic or ideas (Chris) 2. 08:18 AM - Re: SD-8 S704-1 relay with or without Diode when using OVM-14? (plevyakh) 3. 08:25 AM - Re: Good news . . . and bad news (Bill) 4. 08:17 PM - Compatable Shunt (fedico94@mchsi.com) ________________________________ Message 1 _____________________________________ Time: 05:59:09 AM PST US From: "Chris" Subject: RE: AeroElectric-List: Re: AIRCAM Schematic or ideas Right, but I was picking up on your comment that the "alternators are not designed to run parallel on a single bus". I have been wondering if there is a load sharing problem that would be encountered or any other electrical gremlins I am not smart enough to know about. Thanks Chris -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of nuckollsr Sent: Saturday, September 29, 2012 11:02 PM Subject: AeroElectric-List: Re: AIRCAM Schematic or ideas --> Probably nothing serious. But it might mask failure of one alternator when the second one shoulders the loads. A failure that become latent and unnoticed until next preflight. Better that you know it before you land as opposed to just before you wanted to take off. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=384290#384290 ________________________________ Message 2 _____________________________________ Time: 08:18:28 AM PST US Subject: AeroElectric-List: Re: SD-8 S704-1 relay with or without Diode when using OVM-14? From: "plevyakh" Bob, Thank-you very much for the replies. I was able to calibrate my OVMs and get them both (SD-8 Alternator, and Ground Power) installed yesterday. I greatly appreciate all you do for our OBAM community. Without AEC I'd be lost. My electrical system installation is coming right along. Sincerely, Howard -------- Howard Plevyak GlaStar / North Bend, Ohio hplevyak@mac.com Read this topic online here: http://forums.matronics.com/viewtopic.php?p=384316#384316 ________________________________ Message 3 _____________________________________ Time: 08:25:18 AM PST US Subject: Re: AeroElectric-List: Good news . . . and bad news From: Bill Let me know when this gets sorted out - I'm still trying to come to terms with the "buttered-cat array". On Sat, Sep 29, 2012 at 12:15 PM, Robert L. Nuckolls, III < nuckolls.bob@aeroelectric.com> wrote: > nuckolls.bob@aeroelectric.com**> > > > At 10:21 AM 9/29/2012, you wrote: > >> Hi Bob, >> >>> Price is hard to beat! One would need an instrumentation >>> amplifier to read current shunts . . . but the AD628 makes >>> that really simple. Just need a 36-hour day . . . >>> >> I have two partial solutions to your dilemma of a 36-hour day. ;-) >> Unfortunately nobody I have talked to likes my ideas: >> > > I'll bet you could get a patent on it . . . the > patent office is exceedingly accepting of ideas > irrespective of efficacy or merchantability. > > But having a patent preserves the idea > in perpetuity! > > > Bob . . . > > ________________________________ Message 4 _____________________________________ Time: 08:17:14 PM PST US From: fedico94@mchsi.com Subject: AeroElectric-List: Compatable Shunt My RV9-A uses the Z-12 drawing. I installed a G3X unit (two Garmin GDU's 37x). The ammeter does not read but the voltmeter does. Reviewing the schematic provided by Garmin for connecting the two instumentation wires to the Shunt and comparing this to the Z-12 schematic I see both are essentially the same. The shunt sent to me by the Avionics shop for use with the Garmin is 100 amp/50mv and the one B & C supplied and installed in the plane is 60 amp at 50mv. My confusion and question concerns the schematic from Garmin that says the shunt is rated at 0.0005 Ohm. The B & C supplied system with its shunt is 50mv/60 amp gives me 0.00083 Ohm. First are my calculations correct and second does this have any bearing on the inability to display the ammeter reading ? If the above is not contributing to the problem should I look elsewhere in the system for the problem ? (Prior to turning on the field of the 60 amp alternator I get the main volts waring light flashing and goes off after the field is activated. Remainder of G3X works fine) ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.