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  1. Matthias Oduh

    SR489 GE protection management relay showing Self test fault

    Hello everyone! In our power plant, we have three black start diesel generator (BSDG) with the generator's protection, control and metering being handled by GE SR489 protection relay and Siemens s7-400 (or so ) PLC. The SR489 relay on BSDG 3 control panel display has been blank (not showing...
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