{"schemaVersion":1,"slug":"microgrid-restoration-abort-condition-interface","name":"Microgrid restoration abort-condition interface","kind":"symbol","abbreviation":"MRAI","aliases":["Microgrid black-start and restoration controls","microgrids Microgrid black-start and restoration controls","microgrids","Microgrids","Lost prerequisite or fault state","Assigned restoration-abort request"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Coordinates the documented response when a required restoration condition is lost.","description":["Coordinates the documented response when a required restoration condition is lost. Black-start and restoration control coordinates the establishment of an electrical reference and the gradual return of assigned resources and loads. A dead system, an available starting source and a successful load restoration are distinct states.","In a microgrid recovering from a blackout, an available grid-forming source can establish the assigned island reference before compatible generation and eligible load groups are introduced under the validated restoration strategy. For this reference, the drawing identifies “Lost prerequisite or fault state” at the input and “Assigned restoration-abort request” at the output. The resulting system state must be defined.","Show the prerequisites and confirmation at each control boundary. These original explanatory blocks are not an operating procedure; energization, protection, transformer inrush and motor reacceleration require system-level validation. The functional block is an independent explanation of this named application. Equipment-specific ratings, terminal connections and operating conditions must be established in the project documentation."],"readingNotes":["Start at the named input: Lost prerequisite or fault state. Identify its source device or document and the state represented on the drawing.","Follow the named output: Assigned restoration-abort request. Cross-reference its destination and separate the command from confirmation that the equipment responded.","The resulting system state must be defined.","Show the prerequisites and confirmation at each control boundary. These original explanatory blocks are not an operating procedure; energization, protection, transformer inrush and motor reacceleration require system-level validation."],"drawingChecklist":["Label the source and connection reference for lost prerequisite or fault state.","Identify the destination and defined state of assigned restoration-abort request.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: The resulting system state must be defined."],"distinction":"The resulting system state must be defined. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.","facts":[{"label":"Representation","value":"Functional block"},{"label":"Installation focus","value":"Microgrids"},{"label":"Input / boundary","value":"Lost prerequisite or fault state"},{"label":"Output / connection","value":"Assigned restoration-abort request"},{"label":"Lookup label","value":"MRAI is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-study","relevance":"Public technical context for microgrid black-start and restoration controls. Storage, protection, black start, load restoration and coordinated island operation. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["grid-forming-inverter","microgrid-controller","microgrid-failed-black-start-indication"],"artwork":"pi26-microgrid-restoration-abort-condition-interface","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-restoration","input":"Lost prerequisite or fault state","output":"Assigned restoration-abort request"},"plainEnglish":{"title":"What this block does","introduction":"Coordinates the documented response when a required restoration condition is lost.","example":"In a microgrid recovering from a blackout, an available grid-forming source can establish the assigned island reference before compatible generation and eligible load groups are introduced under the validated restoration strategy. For this reference, the drawing identifies “Lost prerequisite or fault state” at the input and “Assigned restoration-abort request” at the output. The resulting system state must be defined.","drawings":"Start at the named input: Lost prerequisite or fault state. Identify its source device or document and the state represented on the drawing. Follow the named output: Assigned restoration-abort request. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Lost prerequisite or fault state"},{"name":"Output","meaning":"Assigned restoration-abort request"},{"name":"Application reference","meaning":"An explanation of a named drawing function or circuit relationship; the project documents define the equipment and its connections."}],"diagram":"flow","steps":["Lost prerequisite or fault state","MRAI","Assigned restoration-abort request"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Avista Shared Energy Economy microgrid protection and control case study","url":"https://selinc.com/api/download/135486/"}],"profileId":"power-installation-microgrid-restoration"},"url":"https://eloragrid.ai/symbols/microgrid-restoration-abort-condition-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-restoration-abort-condition-interface.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pi26-mg-study","publisher":"SEL","title":"Avista Shared Energy Economy microgrid protection and control case study","url":"https://selinc.com/api/download/135486/","scope":"Storage, protection, black start, load restoration and coordinated island operation.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid black-start and restoration controls. Storage, protection, black start, load restoration and coordinated island operation. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}