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Fried Master Wires

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scc_ron(at)yahoo.com
Guest

Posted: Thu Sep 03, 2009 1:57 pm Post subject: Fried Master Wires

This is another example of how adding a ground

     power jack (with ov and reverse polarity protection)

     would have proved useful. I'm pleased that the

     outcome of your experience was so benign . . . it

     could have been much worse.



     I'm mystified about the microphone jack. What

     kind of voltage regulator does your airplane have?

     If it's a built in regulator and it shifted in

     regulation set point as a consequence of this

     event, then it HAS been affected and is now suspect.

        Bob . . .



 Thanks Bob for helping me understan what happened and why with my starting system. To answer your question, I have a new ND alternator off a forklift (35 amp) with internal regulator and "supposed" to have internal over voltage protection....can't swear to that, but that is what got me to purchase it over the 45 amp suzuki one that others have used.

  

 Question. Will my new Odessey battery slowly discharge because the voltage output at 13.9 is now at least 0.3 volts lower than the 14.2 that the literature says one needs to charge it properly? 

  

 Ron



         [quote][b]

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nuckolls.bob(at)aeroelect
Guest

Posted: Thu Sep 03, 2009 2:44 pm Post subject: Fried Master Wires

 	  Quote: 	
		  Thanks Bob for helping me understan what happened and why with my 

starting system. To answer your question, I have a new ND alternator 

off a forklift (35 amp) with internal regulator and "supposed" to 

have internal over voltage protection....can't swear to that, but 

that is what got me to purchase it over the 45 amp suzuki one that 

others have used.


	


    I can tell you with great confidence that there

    is NO internally regulated alternator that features

    more than an OV WARNING. Further, NONE have independent,

    OV PROTECTION that is part and parcel of legacy

    design goals for aircraft.



 	  Quote: 	
		  

Question. Will my new Odessey battery slowly discharge because the 

voltage output at 13.9 is now at least 0.3 volts lower than the 14.2 

that the literature says one needs to charge it properly?


	


    It will be prevented from achieving 100% state of

    charge after cranking the engine for each flight.

    It will probably perform as expected in terms of

    getting an engine started but its energy content

    as a standby power source will be degraded to some

    extent. If you take LONG flights, it WILL get to

    full charge at 13.9 but looking at my own log shows

    that average flight cycle times are on the order of

    1 hour.



    So the battery won't "slowly discharge" it just wont

    get fully charged on short flights.



    Bob . . .

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susanspy

Joined: 14 Sep 2009
Posts: 1

Posted: Mon Sep 14, 2009 6:15 am Post subject: Re: Fried Master Wires

hello all,





i am Susan here, i am fun of this place thanks alot for the great informative post do some more post here. 

thanks a lot!!!!!!!!!!!!!!!!!!!!

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