{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9627881","patent":{"patent_number":"US-9627881","title":"Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements","assignee":null,"inventors":[],"filing_date":"2016-09-21T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["G05B"],"num_claims":12,"abstract":"The present disclosure pertains to systems and methods for detecting faults in an electric power delivery system. In one embodiment, a system may include a data acquisition subsystem configured to receive a plurality of representations of electrical conditions. The system may also include a traveling wave differential subsystem configured to determine an operating quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may also determine a restraint quantity based on the plurality of representations of electrical conditions. The traveling wave differential subsystem may detect a traveling wave generated by the fault based on the plurality of representations. A fault detector subsystem may be configured to declare a fault based on a comparison of the operating quantity and the restraint quantity. A protective action subsystem may implement a protective action based on the declaration of the fault."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements","description":"The present disclosure pertains to systems and methods for detecting faults in an electric power delivery system. In one embodiment, a system may include a data acquisition subsystem configured to rec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9627881","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9627881","citation_suggestion":"Patentable. \"Fault detection in electric power delivery systems using underreach, directional, and traveling wave elements\" (US-9627881). https://patentable.app/patents/US-9627881","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9627881","json":"https://patentable.app/api/llm-context/US-9627881","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:41:55.277Z"}