{"schemaVersion":1,"slug":"58-rectification-failure-relay","name":"Rectification failure relay","kind":"function","abbreviation":"58","aliases":["rectifier failure","rectification monitoring","ANSI 58","IEEE device 58"],"category":"measurement-protection","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEEE / ANSI"],"summary":"Detects failure or abnormal operation in a rectifier arrangement.","description":["Detects failure or abnormal operation in a rectifier arrangement.","In a drafting package, connect this reference to the rectifier monitoring circuit and DC output reference. The associated drawing should trace the failure alarm or associated excitation trip path; the number identifies the role and does not specify the terminal arrangement, ratings or operating settings.","This designation is useful when reading machine and legacy control drawings. Retain the documented function on an existing drawing and consult the original equipment manual before assigning it to a new design."],"readingNotes":["Identify the rectifier monitoring circuit and DC output reference.","Trace the failure alarm or associated excitation trip path."],"drawingChecklist":["Label the rectifier monitoring circuit and DC output reference.","Cross-reference the failure alarm or associated excitation trip path.","Identify the device tag, manual revision and logic drawing that define this implementation."],"distinction":"Rectification failure supervision differs from a general DC undervoltage function.","facts":[{"label":"ANSI / IEEE function number","value":"58"},{"label":"Drawing context","value":"The rectifier monitoring circuit and DC output reference"},{"label":"Application scope","value":"Specialist or legacy machine-control use; interpret with the equipment legend."}],"references":[{"sourceId":"pub-function-sel-numbers","relevance":"Public manufacturer number/name association. Drafting explanations are independently written."},{"sourceId":"ieee-functions","relevance":"Normative device-number publication; exact edition wording and compliance require the licensed standard."}],"related":["power-converter","52-ac-circuit-breaker"],"artwork":"pub-function-box","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/protection-functions/58-rectification-failure-relay","illustration":{"url":"https://eloragrid.ai/library/illustrations/58-rectification-failure-relay.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-function-sel-numbers","title":"ANSI device-number and suffix reference table","publisher":"Schweitzer Engineering Laboratories","url":"https://selinc.com/pt/products/tables/ansi/","type":"manufacturer","scope":"Public Portuguese-language base-number and application-suffix table. Used to cross-check public number associations. Application-specific and historical labels need the selected drawing legend; this table is not a substitute for the licensed IEEE standard.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public manufacturer number/name association. Drafting explanations are independently written."},{"id":"ieee-functions","title":"IEEE C37.2-2022: power-system device function numbers","publisher":"IEEE","url":"https://ieeexplore.ieee.org/document/9984140","type":"standard","scope":"Device function numbers, acronyms and contact designations. The full publication may require access through IEEE.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Normative device-number publication; exact edition wording and compliance require the licensed standard."}]}