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HRK and HRP Carrier Directional Overcurrent Ground Relays Manual

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This document provides installation, application, construction, and operation instructions for Types HRK and HRP carrier directional overcurrent ground relays used for directional ground fault protection in carrier relaying schemes. It details the overcurrent elements, directional element, seal-in contactor switch, operation indicator, characteristics, settings, and internal schematics for both relay types.

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