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  #171  
Old 04-18-2021, 05:55 PM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Southwest
Posts: 1,420
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Quote:
Originally Posted by wirejock View Post
I get the alternator current limiter.
What is on the inside on the main bus? Breakers, VPX or Aircraft Control Module?
Just curious. I plan to use the ACM.
here is my schematic. FYI.

The ANL protects the alt wiring and also the wiring going thru the firewall to the fuse block. Dont want smoking wires aft of the firewall.
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John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2021, worth every penny

RV9A- Status:
Tail 98% done
Wings 98% done
Fuselage Kit 98% done
Finishing Kit 35% canopy done for now
Electrical 85% in work
Firewall Forward 5% in work
Fiberglass 0%, thought i was building in metal?
www.pilotjohnsrv9.blogspot.com

Last edited by PilotjohnS : 04-18-2021 at 06:03 PM.
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  #172  
Old 04-18-2021, 06:33 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,383
Default Stuff

Quote:
Originally Posted by PilotjohnS View Post
here is my schematic. FYI.

The ANL protects the alt wiring and also the wiring going thru the firewall to the fuse block. Dont want smoking wires aft of the firewall.
Thanks John
Ok folks. Cough it up.
What else don't I need that I don't know? No wait.
What else do I need that I know? No wait.
What else... Oh bother!
Just give me the scoop please.
Feel like I'm sucking a Sweet Cream Malt through a cracked straw.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #173  
Old 04-18-2021, 09:44 PM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 1,647
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Mine are both 60A fuses for the reasons mentioned above. Many argue they aren't needed because the wire will arc any shorts with the firewall until the metal is gone and no more arcing. Ummmm... I'm not comfortable with that. Hence I used two of them. One for alternator and one for the main line into the cockpit. You will want to do a search on this topic as there are many different ways a guy can hook it all up especially when you throw a shunt into the mix. The Dynon manual shows the different ways the shunt can be positioned.
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  #174  
Old 04-20-2021, 08:57 AM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,383
Default Brass bar

Vans plns show a brass bar between the two contactors. I can't find it on my inventory or parts.
Is it a local hardware store item?

Is it permissible to use a bar to connect to the ANL and or Shunt?
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #175  
Old 04-20-2021, 09:16 AM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 1,647
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Quote:
Originally Posted by wirejock View Post
Vans plns show a brass bar between the two contactors. I can't find it on my inventory or parts.
Is it a local hardware store item?

Is it permissible to use a bar to connect to the ANL and or Shunt?
This is what you need.

https://www.aircraftspruce.com/catal...?clickkey=4696
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  #176  
Old 04-20-2021, 09:34 AM
jjb jjb is offline
 
Join Date: Jan 2014
Location: CO
Posts: 62
Default Copper

I am using a VPX-Pro and elected not to use a shunt per Vertical Power installation options.

But here is what I did. The ANL's are for main and standby B&C alternators.

I used .125 copper sheet obtained economically from the usual big online vendors (not ACS, although that will certainly work) and fabricated what is in the picture.
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QB Fuse in progress
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Last edited by jjb : 04-20-2021 at 09:36 AM. Reason: add pix
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  #177  
Old 04-20-2021, 10:11 AM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,383
Default Copper

Quote:
Originally Posted by jjb View Post
I am using a VPX-Pro and elected not to use a shunt per Vertical Power installation options.

But here is what I did. The ANL's are for main and standby B&C alternators.

I used .125 copper sheet obtained economically from the usual big online vendors (not ACS, although that will certainly work) and fabricated what is in the picture.
Copper. Sorry. I knew. Just typed the wrong metal.
Very neat!
Exactly what I planned. Thanks for the confirmation.
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #178  
Old 04-21-2021, 10:05 AM
amaris amaris is offline
 
Join Date: Feb 2015
Location: Santa Ynez, CA
Posts: 285
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Buy some extra length too. I didn't like the fit of my first attempt so redid it.
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  #179  
Old 04-21-2021, 10:27 AM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,383
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Quote:
Originally Posted by amaris View Post
Buy some extra length too. I didn't like the fit of my first attempt so redid it.
I never get anything right the first time except mistakes.
I fabricated a scrap aluminum bar and ordered two 12" pieces!
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Larry Larson
Estes Park, CO
http://wirejockrv7a.blogspot.com
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #180  
Old 04-21-2021, 10:32 AM
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jcarne jcarne is offline
 
Join Date: Jul 2016
Location: Worland, Wyoming
Posts: 1,647
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Quote:
Originally Posted by amaris View Post
Buy some extra length too. I didn't like the fit of my first attempt so redid it.
I agree, buy two 12 inch pieces just in case. Keeps shipping down too.
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RV-7A Flying as of 03/2021
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