[Amps] 10 Meters

[Richard]

>One difficulty with higher DC supplies is the relays that are needed to 
>provide
>complete galvanic isolation without arcing. That's why the  270volt dc bus
>standard for new military aircraft led to the necessity for the 
>development of
>vacuum circuit breakers for the application.
>

€ In my un-expert experiences, a MOV across the contacts cures the 
problem better than a vacuum-relay since the reverse EMF still needs to 
be suppressed to prevent damage elsewhere. 

>There's been some interesting articles in IEEE Spectrum about it.
>
>73
>
>Peter G3RZP
>
>
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-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
www.vcnet.com/measures.  
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