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alternator field current

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nuckolls.bob(at)cox.net
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Posted: Thu Mar 20, 2008 11:01 am Post subject: alternator field current

At 10:42 AM 3/20/2008 -0700, you wrote:



 	  Quote: 	
		  



I'm building a dual alternator, single battery Z-12 and am trying to

figure out the running current loads of the alternator field circuits.

Of course, I see that a 5A fuse is recommended, however, what is the

normal current on this circuit?


	


   These are not normally considered to be part of the ship's running

   loads. It's assumed that an alternator will be required to carry

   its own excitation requirements. Therefore, an alternator rated

   for say 60A is really expected to supply 60 amps IN ADDITION

   to energy needed to excite the field. So use 3A as a max,

   1A as average and then don't add it into your load analysis.



   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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