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Re: Unpotted NST

Original poster: Mike <megavolts61@xxxxxxxxx>

Thanks Mike for the reply.  What is the reason they pot them in the
first place?  Dennis

Hi Dennis,
They pot them for one main reason....to make them weather proof. The secondary benefit is that no corona will be developed in the tar, which might lead to early failure of the transformer. When we play with them, we tend to exceed their design limitations, so sometimes a carbon track will form and essentiall short out one side of the transformer.. Some have had to remove a layer or two of windings in some cases because they created a short between layers, but I think that is a rare occurance.

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