The trick is to have the scope connected when an event takes place --
which could be once in maybe a year or eight.
>Why speculate? If you've a storage scope or a
>scope with triggered sweep amd a camera
>it's easy to measure the destruction of that
>28 guage choke and get a handle on the
>upper limit of that current.
>
>-bob
>ah7i
>
>
>2 wrote:
>
>>
>>
>>>Jeffrey Madore wrote:
>>>
>>>
>>>>As I alluded to, I think we can leave the terrestrial magnetic field
>>>>out of the equation.
>>>>
>>>>
>>>That is clear from Eric's calculation.
>>>
>>>
>>>
>>>>A length of power cable in free air exhibits the property of inductive
>>>>reactance when there is AC current flow. This XL results when the
>>>>cables own magnetic field expands and collapses about the conductor
>>>>itself. The result is a CEMF which produces current that is out of
>>>>phase with the source current and thus bucks or impedes the flow of
>>>>current from the source. Hence, we have these two current components
>>>>which are out of phase, producing magnetic reaction and mechanical force.
>>>>
>>>>
>>>>
>>>If you can describe the scenario, you can predict the force. Please may
>>>we see a calculation?
>>>...
>>>
>>>
>>** not until someone measures the currents present during the event that
>>preceeds a 3-500Z fil/grid short. So far, the only quantity we can guess
>>at is the >15a it takes to melt #28 Cu in the grid's DC return path.
>>
>>- R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
>>www.vcnet.com/measures.
>>end
>>
>>_______________________________________________
>>Amps mailing list
>>Amps@contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>
>
>
>
- R. L. Measures, a.k.a. Rich..., 805.386.3734, AG6K,
www.vcnet.com/measures.
end
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