{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9599653","patent":{"patent_number":"US-9599653","title":"Method for diagnosing internal fault of oil-immersed transformer through composition ratio of dissolved gas in oil","assignee":null,"inventors":[],"filing_date":"2012-12-26T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":23,"abstract":"The present invention relates to a method for diagnosing an internal fault of an oil-immersed transformer by analyzing the composition ratio of dissolved gas in oil that is caused when an internal fault of the oil-immersed transformer occurs. According to the present invention, a method for diagnosing an internal fault of an oil-immersed tranformer by extracting and analyzing dissolved gas in oil from the oil-immersed transformer for which an internal fault is to be diagnosed comprises: a first step of calculating the composition ratio of each of CH4/H2, C2H2/C2H4, C2H4, C2H4/C2H6, and C2H4/CH4 from among the extracted dissolved gas in oil; a second step of determining whether the internal fault is an electrical fault or a thermal fault using the calculated composition ratios of CH4/H2 and C2H2/C2H4; and a third step of determining, if said internal fault is determined to be an electrical fault in the second step, whether the electrical fault is a partial discharge (PD), a discharge of low energy (D1), or a discharge of high energy (D2) using the calculated composition ratios of C2H2/C2H4 and C2H4/C2H6."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for diagnosing internal fault of oil-immersed transformer through composition ratio of dissolved gas in oil","description":"The present invention relates to a method for diagnosing an internal fault of an oil-immersed transformer by analyzing the composition ratio of dissolved gas in oil that is caused when an internal fau","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9599653","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-9599653","citation_suggestion":"Patentable. \"Method for diagnosing internal fault of oil-immersed transformer through composition ratio of dissolved gas in oil\" (US-9599653). https://patentable.app/patents/US-9599653","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9599653","json":"https://patentable.app/api/llm-context/US-9599653","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:49:39.296Z"}