Originally posted by dyatronn
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DS says his gaps and arrestors are always used to limit the amount of energy. Which I found is true in practice. If you place a SG in series with HV, the SG will hold the voltage down to the airgap breakdown voltage. Same is true for an arrestor. If have a 12kv secondary NST, and you put a 2kv GDT in series, the voltage will stay around 2kv.

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