Schweitzer Engineering Laboratories, Inc. has introduced the SEL-9220 Fiber-Optic Adapter for SEL-300 Series Relays. The SEL-9220 mounts directly to the EIA-485 port on the relay connector that is ...
Today’s microprocessor-based relays collect and save event reports during faults and other problematic conditions. The event report and Sequential Events Recorder (SER) capability of advanced relays ...
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