[AMPS] Discharge energy

[2]

>
>From Phil, K5PC:
>>The value of the glitch resistor is
>>selected to limit energy discharge from the filter caps to 50 joules,
>>and the wattage of the glitch resistor is selected to keep it from
>>self-destructing while the breaker is in transit.
>
>First of all, please can I stress that my comments are NOT intended as
>specific to Phil - his posting contains a comment I've seen a number of
>times, which might appear in some manufacturer's info and which puzzles me a
>bit. Phil's posting gets used purely because I've chosen this moment to make
>my comment.
>
>The energy in the filter caps is defined as 1/2*C*V^2. I'm puzzled as to how
>a glitch resistor allows the *energy* in a discharge to be controlled. To my
>mind, it can only set the peak current and the time constant.
>
Good point, Steve.  Congrats.  

-  R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures.  
end


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