Today's Message Index:
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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
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| Subject: | 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
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| Subject: | Re: Running avionics on power supply |
<recapen@earthlink.net>
> 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
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| Subject: | Re: 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 <Gilles.Thesee@ac-grenoble.fr>
>Sent: Nov 21, 2007 8:07 AM
>To: avionics-list@matronics.com
>Subject: Re: Avionics-List: Running avionics on power supply
>
>
><recapen@earthlink.net>
>> 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
>
>
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