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  • Users: Jacobs60bx
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  1. Jacobs60bx

    DC Generator Brush Arcing

    I bench tested a 50 year old Robbins & Myers 250 rpm, 400 pound, 3000 watt, 120 vdc generator with a 188 segment commutator. These generators have 4 brushes. Three of the brushes, as originally equipped, are a soft carbon/graphite composition and the fourth brush, originally installed in the...

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