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  1. alexcao

    ground current pick-up - CBCT for 3 phase motor

    Hello - at our power plant, we have motor starters that use a CBCT (core balance current transformer) to measure zero sequence current on the motor phases. It's one of those window-type CTs with all three phase of the AC motor passing through the center. The CT ratio is 50:0.025 and it has a ge...

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