Digital Communications for Relay Protection
نویسندگان
چکیده
Electric utilities are expanding communications infrastructure due to increased need for information. Due to performance, price, and technological advances, digital communication systems are frequently chosen as this multiple user data network. This two-part paper describes the application of digital communication in power system protection. Part 1 describes the digital communications architecture and topology that can be applied to existing and new protection systems, digital channel characteristics and transport systems applicable and not applicable for protection, future digital communications technologies of interest to the protection engineer, and the need for future standards. Part 2 reviews existing analog communications relay schemes and describe digital interfaces to them. An Annex is provided to define terms used. Part 1 : Digital Communications Systems
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