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-   -   Redundant Power Systems Architecture (https://vansairforce.net/community/showthread.php?t=99053)

Mike S 05-08-2013 05:45 PM

Link is not working for me.

BoilermakerRV 05-08-2013 06:06 PM

Folder Permissions
 
Quote:

Originally Posted by Mike S (Post 769233)
Link is not working for me.

I might have had a permissions error. Would you mind trying again?

MCA 05-09-2013 10:12 AM

Michael,

Not sure I follow your drawing... it seems a bit abstract. Even as a first pass I recommend a bit more detail and stick with just the electrical stuff.

That said, a few questions:
1. why are there two shunts in series? Recommend reading the EFIS install manual and you'll get different results depending on where you mount the shunt.
2. why is the battery connected to the master switch?
3. there is normally a ground power contactor and some more thought needs to go into how to wire this.
4. What is 'alt cntrl' and why does it go to the GSU 73? Is this the voltage regulator?

It looks like a good first pass. I recommend reading the VP-X install manual as it has lots of good general information in it, regardless if you are using the VP-X or not. :)

BoilermakerRV 05-09-2013 01:22 PM

Marc - Thanks so much for the feedback. You're right in that this is very "abstract". It's intended to be a very high level functional block diagram as opposed to a wiring diagram or detailed drawing. I know I've labeled some of the lines as "RS-232", etc. but they are really just there to represent some input or output which could be electrical power, data or even mechanical motion as in the case of the IO-360 to ALT connections.

Quote:

Originally Posted by MCA (Post 769406)
1. why are there two shunts in series?

By shunts, I assume you mean the "ammeters". One is for the current to\from the battery (charge\discharge) and the second is the total load on the electrical system.

Quote:

Originally Posted by MCA (Post 769406)
2. why is the battery connected to the master switch?

My master switch setup was taken from a very generic pictoral description of a basic aircraft electrical system. I am planning on using a split master if that helps explain my thinking.

Quote:

Originally Posted by MCA (Post 769406)
4. What is 'alt cntrl' and why does it go to the GSU 73? Is this the voltage regulator?

That's supposed to be short for "alternator controller", which as I understand it monitors the output voltage of the alternator and adjust the "field" input as required to maintain the correct system voltage. The output to the GSU73 is the low voltage discrete for annunciation of an alternator failure.

Again, thank you so much for your help. Please also realize that my explanations\justifications above are simply me trying to put my current thoughts and understanding in writing. I welcome your corrections and inputs whole heartedly.

Respectfully,
Michael

MCA 05-10-2013 10:57 AM

That generic diagram is horrible.

Recommend, for basic education, use our installation manual and the Aeroelectric Connection book. https://matronics.com/aeroelectric/C...ub.html#P-Book

Hope that helps.


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