[TCML] pole pig question

[BunnyKiller]

Hi Greg,

what brand of resistor were you using to test your equipment with?  The 
3 I tried all arced over to nearly 1/2 the length of the resistor when I 
used them to do tests.

Scot D



G Hunter wrote:

>--- BunnyKiller <bunnikillr at cox.net> wrote:
>
>  
>
>>Hey Jim,
>>test the piggie using a hi current hi voltage
>>resistor 1KW @ 1KOhm ( 
>>wire wound dont work to well they simply arc over to
>>the next winding)  
>>
>>Scot D
>>    
>>
>
>I disagree.  An ordinary wirewound power resistor is
>as good as any in this application.  A 1kohm power
>resistor will feel no more than a few hundred volts
>potential across the whole body of the resistor, even
>if it is connected across the pig HV terminals.  The
>reason is as simple as Ohm's law.  If a 1kohm resistor
>passes 500mA of current, then it will have a potential
>of 500volts across it--hardly sufficient to cause
>turn-to-turn arcing on a big (100W or larger) one. 
>The pig simply cannot develop it's full HV potential
>across such a low resistance.  Besides, wirewounds
>have been used for decades in vacuum tube equipment,
>where they routinely handle 100's of volts of plate,
>grid, and screen bias without failure.
>
>Greg
>
>
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