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What is Directional Comparison Protection Schemes about?

Directional comparison distance protection schemes utilize communications between line terminals to provide high-speed fault clearing along the entire transmission line. This is important for system stability and allows functions like high-speed auto-reclosing. Various pilot protection schemes exchange information to determine if a fault is internal or external to the protected line section, such as permissive overreaching transfer trip which uses a forward-looking zone and permission signal from the remote

Author

nooralhud

Language

EN