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  1. sparky321

    DSP MKII, system failure??

    I am trying to resolve a problem with and FPE switchgear system. The system is a high resistance grounded 3 phase delta Y. 600 / 347 VAC, the resister is sized to limit the ground current to 5 amps. We have a DSP MKII ground fault protection system that has worked great for 15 years. For the...

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