[Amps] Pole pigs removed from oil ??

[N1BUG]

Back in the '90s I used two in parallel for my EME amplifier. It 
wasn't that I was running great power (1500W out) but they were 13.2 
kV pigs that I removed a bunch of wire from to get them down to 
where I had 4 kV DC. The HV winding was fairly small wire and so I 
had too much voltage drop under load with one. I removed those from 
oil myself. They took a while to stop dripping but always smelled 
kinda bad. Never had a problem with them.

About 17 years ago I acquired a pole pig that had long since been 
removed from oil. No dripping, looked very dry, no smell. This was 
something around a 3-4 kV pig I think. A small amount of the HV 
winding had been removed but not much. I get about 4 kV DC and have 
been using this with multiple 1.5 kW out RF decks for 17 years. No 
problems yet.

Paul N1BUG



On 11/02/2017 09:44 PM, Jim Thomson wrote:
> Have any of you folks used or know of anybody who has used pole pigs..removed from oil ?
> Is there any inherent risk  with insulation breakdown etc ?
> 
> Jim   VE7RF