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Z-13 Questions

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longg(at)pjm.com
Guest

Posted: Tue Jan 13, 2009 10:57 am Post subject: Z-13 Questions

I be using an 85 Amp IR alternator with this design. Couple of questions.  

   

   

<![if !supportLists]>1.       <![endif]>For the primary alt, is it ok to go with an 80 Amp Shunt and ANL? I understand they will take 1xx % of rating?  

<![if !supportLists]>2.       <![endif]>For the secondary alt is it ok to replace the fuse-link in the design for an ANL? Rating 10 amp?  

<![if !supportLists]>3.       <![endif]>The B & C schematic is slightly different in breaker/wire sizing. Should I adhere to that more closely than Bob’s?  

<![if !supportLists]>4.       <![endif]>If I understand the instruction the SD-8 indicates the warning light is ON when the switch is off or the OVP has tripped. I’m not sure if I want that big yellow bulb on all the time? What other warning light configurations are folks using?  

<![if !supportLists]>5.       <![endif]>My ANLs/contactors will be on the firewall. Are there any caveats for protecting them from heat, dirt, oil, water etc?   

   

Thanks,  

Glenn  

      [quote][b]

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nuckolls.bob(at)aeroelect
Guest

Posted: Tue Jan 13, 2009 12:36 pm Post subject: Z-13 Questions

At 12:54 PM 1/13/2009, you wrote:

 	  Quote: 	
		  I be using an 85 Amp IR alternator with this design. Couple of questions.

1.       For the primary alt, is it ok to go with an 80 Amp Shunt 

and ANL? I understand they will take 1xx % of rating?


	


   The shunt is the same size as alternator rating. You

   can use an ANL as low as 35A with a 60A alternator.



http://aeroelectric.com/Mfgr_Data/Fuses_and_Current_Limiters/Bussman/ANL_Specs.pdf



 	  Quote: 	
		  2.       For the secondary alt is it ok to replace the fuse-link in 

the design for an ANL? Rating 10 amp?


	


   Sure. Not an ANL but an 20A ATC fuse in an in-line holder.



http://aeroelectric.com/Pictures/Fuses/Fuse_Holders/ifh-2.jpg



 	  Quote: 	
		  3.       The B & C schematic is slightly different in breaker/wire 

sizing. Should I adhere to that more closely than Bob's?


	


      His schematic works as advertised. So does mine.



 	  Quote: 	
		  4.       If I understand the instruction the SD-8 indicates the 

warning light is ON when the switch is off or the OVP has tripped. 

I'm not sure if I want that big yellow bulb on all the time? What 

other warning light configurations are folks using?


	


      Don't install it. I presume you have a low voltage warning

      that is independent of the alternator(s).



 	  Quote: 	
		  5.       My ANLs/contactors will be on the firewall. Are there any 

caveats for protecting them from heat, dirt, oil, water etc?


	


      Cessna, Piper and Beech don't worry about it.



http://aeroelectric.com/Pictures/Wiring_Technique/A36_Firewall_A.jpg



      It must not be a big deal.

        Bob . . .



        ----------------------------------------)

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )

        ----------------------------------------

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longg(at)pjm.com
Guest

Posted: Tue Jan 13, 2009 1:12 pm Post subject: Z-13 Questions

Excellent, thanks Bob.



--

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