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 ...
Schweitzer Engineering Laboratories, Inc. (SEL) has announced wide-area-measurement-based control in a transformer relay for the first time. This enhancement to the SEL-487E Transformer Protection ...
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