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LarryRosen
Joined: 16 Jan 2006
Posts: 415
Location: Medford, NJ
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 Posted: Tue Oct 03, 2006 7:48 pm Post subject: Modified Z13-20 for Peer Review |
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I am currently building a Vans RV-10 and I am to the point where I will
soon need to start the electrical wiring. After thinking through the
various options for the electrical configuration, I decided a single
battery dual alternator design based on Z-13/20 is what I am going to
put into my airplane. Some of the factors into the decision is
redundancy and reliability for my all electric panel, along with my
analysis of the loads for everything I "want" on the e-bus. My load
analysis shows a continuous load of 12 amps with a maximum load (no
diversity) of 25 amps. I modified the base Z diagram to accommodate a
battery that will be mounted in the tail cone.
If you would take a look at my modified Z-13/20 design and comment back
it would be greatly appreciated.
Modifications to the base diagram are highlighted in yellow.
The drawing is in pdf format and you can find it here
<http://lrosen.nerv10.com/Electic/Elect_R1.pdf>
or a write up and link can be found here
<http://lrosen.nerv10.com/Electic/index.html>
Thanks
--
Larry Rosen
RV-10 #356
http://lrosen.nerv10.com
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_________________
Larry Rosen
#40356
N205EN (reserved)
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Bob McC
Joined: 09 Jan 2006
Posts: 258
Location: Toronto, ON
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| Posted: Tue Oct 03, 2006 9:12 pm Post subject: Modified Z13-20 for Peer Review |
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Ooops pushed send too quickly.
The first thing that jumps out Larry is that the starter contactor is
unlikely to ever pull in with the warning light connected in series with the
start button and the coil. Same comment applies to contactor used to engage
"E" bus in series with its warning light. The warning lights need to be from
the switch/coil junctions to ground and the switches need to apply voltage
directly to the coils.
Bob McC
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_________________
Bob McC
Falco #908
(just starting) |
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khurst(at)taroom.qld.gov.
Guest
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| Posted: Wed Oct 04, 2006 2:24 am Post subject: Modified Z13-20 for Peer Review |
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Larry,
May I respectfully suggest you connect your starter warning lamp between
the downstream side of the starter contactor and ground. If you ever
see the light on when you are not pressing the starter button, you will
know that the starter contactor has stuck in. IOW, watch the light as
you press the starter button and it should go out immediately the button
is released.
Cheers
Kingsley in Oz.
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