Today's Message Index:
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0. 07:50 AM - What's Your Contribution Used For? (Matt Dralle)
1. 09:29 AM - Schottky diode (Carlos Trigo)
2. 10:08 AM - Re: Schottky diode (user9253)
3. 03:04 PM - Re: Schottky diode (Robert L. Nuckolls, III)
Message 0
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| Subject: | What's Your Contribution Used For? |
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Message 1
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Guys
In my RV-10 electric system, with 2 batteries and 2 alternators (the Primary ALT
being a Plane Power 60A, and the Secondary ALT being a BC410-H, formerly known
as SD-20), I have a Main Battery contactor and an Aux Battery contactor.
This being, unless I have the Aux Batt contactor On (closed), the Alternators will
not charge the Aux battery.
Therefore, I am thinking in installing a Schottky diode (I have one from Perihelion
Design sitting in my shelf, which is rated at 60A of maximum allowable continuous
current, and voltage loss around 0,20V), between the Main battery Buss
and the Aux battery + terminal, to allow the alternators who are charging the
Main battery, also to charge the Aux battery, even when the Aux BATT contactor
is not closed.
First question: is there any downside to this solution, or is it even not recommended
at all?
Second question (or more...): in this solution, I should put a fuse in the wire
between the Main Batt buss and the Schottky diode, to protect this wire, right?
Which is the A recommended for this fuse, 30 A?
And by the way, which wire gauge, AWG#12?
Thanks
Carlos
Message 2
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| Subject: | Re: Schottky diode |
Your plans sound good to me. Wires should be fused at the source end. Since the
wire with the diode connects two sources (batteries) together, you might consider
fusing it at both ends, especially if it is a long wire or if there is
any chance of it shorting to ground.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=475179#475179
Message 3
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| Subject: | Re: Schottky diode |
At 10:53 AM 11/17/2017, you wrote:
>
>Guys
>
>In my RV-10 electric system, with 2 batteries and 2 alternators (the
>Primary ALT being a Plane Power 60A, and the Secondary ALT being a
>BC410-H, formerly known as SD-20), I have a Main Battery contactor
>and an Aux Battery contactor.
>
>This being, unless I have the Aux Batt contactor On (closed), the
>Alternators will not charge the Aux battery.
>
>Therefore, I am thinking in installing a Schottky diode (I have one
>from Perihelion Design sitting in my shelf, which is rated at 60A of
>maximum allowable continuous current, and voltage loss around
>0,20V), between the Main battery Buss and the Aux battery +
>terminal, to allow the alternators who are charging the Main
>battery, also to charge the Aux battery, even when the Aux BATT
>contactor is not closed.
>
>First question: is there any downside to this solution, or is it
>even not recommended at all?
>
>Second question (or more...): in this solution, I should put a fuse
>in the wire between the Main Batt buss and the Schottky diode, to
>protect this wire, right?
>Which is the A recommended for this fuse, 30 A?
>And by the way, which wire gauge, AWG#12?
Why not wire like Z-12 with a z-30 second
battery? Are you planning to have battery
bus(es)? Which electro-whizzies will run
from each bus? Why not fly with both
battery contactors closed?
Bob . . .
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