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Z13 Procedures

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jpiavis(at)microsoft.com
Guest

Posted: Wed Dec 12, 2007 8:33 am Post subject: Z13 Procedures

From an operations procedure on Z-13, in the event of a alternator failure, is the proper process:  

<![if !supportLists]>1)      <![endif]>Master - OFF  

<![if !supportLists]>2)      <![endif]>E-Buss – ON (feed E-Buss from Batt)  

<![if !supportLists]>3)      <![endif]>Stand-By Alt – ON  

   

Does it really matter if the SD-8 is brought on line prior to the e-buss feed?  

   

Jim  

      [quote][b]

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nuckolls.bob(at)cox.net
Guest

Posted: Wed Dec 12, 2007 8:55 am Post subject: Z13 Procedures

At 08:27 AM 12/12/2007 -0800, you wrote:



 	  Quote: 	
		   From an operations procedure on Z-13, in the event of a alternator 

 failure, is the proper process:



1)      Master - OFF



2)      E-Buss ON (feed E-Buss from Batt)



3)      Stand-By Alt ON



Does it really matter if the SD-8 is brought on line prior to the e-buss feed?


	


    No, there is no risk to any equipment for "improper"

    operation of the switches. You MIGHT have some

    device on the e-bus that does a software reset

    at power up. Therefore, consider adoption of

    the following:



    (1) Low Volts Warning - ON



    (2) E-Bus Aternate Feed - ON



    (3) Standby ALT - ON



    (4) Battery/Master switch - OFF



    However, one may consider any sequence

    without risk to installed hardware. Existence

    of the E-Bus and SD-8 makes it failure tolerant;

    risk-free sequencing of switches makes it

    goof tolerant.



    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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sportav8r(at)gmail.com
Guest

Posted: Wed Dec 12, 2007 10:24 am Post subject: Z13 Procedures

Bob, where do things stand R&D-wise with your proposed external OVP for the IR automotive alternators?  Haven't heard anything in awhile, and wondering if I missed something lately.



-Bill B



 On Dec 12, 2007 11:54 AM, Robert L. Nuckolls, III <nuckolls.bob(at)cox.net (nuckolls.bob(at)cox.net)> wrote:

[quote] --> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)cox.net (nuckolls.bob(at)cox.net)>



At 08:27 AM 12/12/2007 -0800, you wrote:



 	  Quote: 	
		   From an operations procedure on Z-13, in the event of a alternator 

 failure, is the proper process:



1)      Master - OFF



2)      E-Buss ON (feed E-Buss from Batt)



3)      Stand-By Alt ON



Does it really matter if the SD-8 is brought on line prior to the e-buss feed? 


	


    No, there is no risk to any equipment for "improper"

    operation of the switches. You MIGHT have some

    device on the e-bus that does a software reset

    at power up. Therefore, consider adoption of 

    the following:



    (1) Low Volts Warning - ON



    (2) E-Bus Aternate Feed - ON



    (3) Standby ALT - ON



    (4) Battery/Master switch - OFF



    However, one may consider any sequence 

    without risk to installed hardware. Existence

    of the E-Bus and SD-8 makes it failure tolerant;

    risk-free sequencing of switches makes it

    goof tolerant.



    Bob . . .



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

        ( . . .  a long habit of not thinking   )

        ( a thing wrong, gives it a superficial )

        ( appearance of being right . . .       )

        (                                       )

        (                  -Thomas Paine 1776-  )  [quote][b]

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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nuckolls.bob(at)cox.net
Guest

Posted: Thu Dec 13, 2007 8:35 am Post subject: Z13 Procedures

At 01:23 PM 12/12/2007 -0500, you wrote:



 	  Quote: 	
		  Bob, where do things stand R&D-wise with your proposed external OVP for 

the IR automotive alternators?  Haven't heard anything in awhile, and 

wondering if I missed something lately.


	


   No, I THOUGHT when I retired from the OEM TC aircraft world

   that I would have more time to expand my own activities

   and in particular, get the alternator drive-stand running

   so that the ideas in development can be proofed in actual

   service.



   Unfortunately, the folks I've been assisting for the

   past 6 months are having trouble putting their arms

   around what's necessary to add a capable electronics

   activity to their already stellar mechanical capabilities.



   What was supposed to be a 20 hr/wk activity on my

   part has in fact been much more demanding. We're

   having a meeting between my principal and one of my

   favorite can-do electronics development, certification

   and production houses here in Wichita next Monday.



   If things go according to plans and best-wishes for

   this venture, I'll be getting some relief in the

   not too distant future. I have an experiment already

   assembled that will test the validity of the proposed

   design. It's just going to have to spend another

   month or so on the back burners.



   Bob . . .

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