---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Wed 11/21/07: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:03 AM - Running avionics on power supply (Ralph E. Capen) 2. 05:09 AM - Re: Running avionics on power supply (Gilles Thesee) 3. 05:23 AM - Re: Running avionics on power supply (Ralph E. Capen) ________________________________ Message 1 _____________________________________ Time: 05:03:07 AM PST US From: "Ralph E. Capen" Subject: Avionics-List: Running avionics on power supply No replies to my initial post, so trying again.... Should there be any issues in running my electrical system with a power supply instead of the alternater/engine running? I have a battery in the circuit (PC680). Do I need to connect the power supply directly to the battery or can I hook it to my shunt to simulate the power coming from the alternator? Just want to make sure that I don't fry anything..... Ralph Capen ________________________________ Message 2 _____________________________________ Time: 05:09:32 AM PST US From: Gilles Thesee Subject: Re: Avionics-List: Running avionics on power supply > Should there be any issues in running my electrical system with a power supply instead of the alternater/engine running? I have a battery in the circuit (PC680). No problem at all. We do that anytime some checks or maintenance are necessary. > > Do I need to connect the power supply directly to the battery Yes > or can I hook it to my shunt to simulate the power coming from the alternator? > > > Depends on how your circuit is wired. Be careful not to toast the supply by turning too much loads at a time. Best regards, -- Gilles http://contrails.free.fr ________________________________ Message 3 _____________________________________ Time: 05:23:45 AM PST US From: "Ralph E. Capen" Subject: Re: Avionics-List: Running avionics on power supply Gilles, Connecting it to the shunt in my case bypasses the master relay and energizes the aircraft's electrical system. It allows me to see the loads of each of the devices as I bring them on-line. My fear is that any electrical anomalies would find a quicker path through my avionics than through the battery which would absorb them better. I think I have just convinced myself that connecting it to the battery is the safer way to go....someone else can tell me if it is not necessary...... Thanks, Ralph -----Original Message----- >From: Gilles Thesee >Sent: Nov 21, 2007 8:07 AM >To: avionics-list@matronics.com >Subject: Re: Avionics-List: Running avionics on power supply > > > >> Should there be any issues in running my electrical system with a power supply instead of the alternater/engine running? I have a battery in the circuit (PC680). > >No problem at all. We do that anytime some checks or maintenance are >necessary. > >> >> Do I need to connect the power supply directly to the battery > >Yes >> or can I hook it to my shunt to simulate the power coming from the alternator? >> >> >> >Depends on how your circuit is wired. >Be careful not to toast the supply by turning too much loads at a time. > >Best regards, >-- >Gilles >http://contrails.free.fr > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-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/avionics-list Browse Digests http://www.matronics.com/digest/avionics-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.