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MOV device usage and spec

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mrspudandcompany(at)veriz
Guest

Posted: Sat Feb 09, 2008 5:23 am Post subject: MOV device usage and spec

This is probably directed to Bob more than anyone else, but if there are

comments, please feel free.



 



I have noticed the use of MOV's in many of the "Z" drawings.  I understand

their value in protecting switches etc.  Do you have specs on what MOV

should be used for different applications, such as for contactors, flap /

gear motors, or any other inductive load?



 



Thanks,



 



Roger Curtis

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nuckolls.bob(at)cox.net
Guest

Posted: Sun Feb 10, 2008 3:56 pm Post subject: MOV device usage and spec

At 08:18 AM 2/9/2008 -0500, you wrote:



 	  Quote: 	
		  

<mrspudandcompany(at)verizon.net>



This is probably directed to Bob more than anyone else, but if there are

comments, please feel free.



I have noticed the use of MOV's in many of the "Z" drawings.  I understand

their value in protecting switches etc.  Do you have specs on what MOV

should be used for different applications, such as for contactors, flap /

gear motors, or any other inductive load?


	


   They have been removed from all but the oldest,

   and yet to be updated drawings. The MOV's are

   useful devices in the large transient world (read

   lightning) but not practical in aircraft or other

   DC power systems as transient suppressors.



   Are there any MOV's left in the current suite

   of z-figures? If you spot one, let me know and

   I'll get it corrected asap. Thanks!



   Bob . . .

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