{"schemaVersion":1,"slug":"microgrid-breaker-closing-time-compensation","name":"Microgrid breaker closing-time compensation","kind":"symbol","abbreviation":"MBCC","aliases":["Microgrid synchronising interfaces","microgrids Microgrid synchronising interfaces","microgrids","Microgrids","Phase evolution and breaker timing","Compensated close request"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Accounts for the defined breaker operating-time model in its assigned synchronising command.","description":["Accounts for the defined breaker operating-time model in its assigned synchronising command. Synchronising control compares two AC systems before their assigned connecting breaker closes. Voltage magnitude, frequency, phase relationship, breaker readiness and command authority are separate inputs to the closing decision.","In a microgrid reconnecting at its point of common coupling, a synchroniser can adjust the island reference while a separate permissive confirms the permitted relationship across the open breaker. For this reference, the drawing identifies “Phase evolution and breaker timing” at the input and “Compensated close request” at the output. The model requires validated breaker data.","Identify the two measurement sides and the equipment receiving any adjustment request. Closing limits, breaker timing and loss-of-measurement behavior require the approved synchronising design. 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: Phase evolution and breaker timing. Identify its source device or document and the state represented on the drawing.","Follow the named output: Compensated close request. Cross-reference its destination and separate the command from confirmation that the equipment responded.","The model requires validated breaker data.","Identify the two measurement sides and the equipment receiving any adjustment request. Closing limits, breaker timing and loss-of-measurement behavior require the approved synchronising design."],"drawingChecklist":["Label the source and connection reference for phase evolution and breaker timing.","Identify the destination and defined state of compensated close request.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: The model requires validated breaker data."],"distinction":"The model requires validated breaker data. 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":"Phase evolution and breaker timing"},{"label":"Output / connection","value":"Compensated close request"},{"label":"Lookup label","value":"MBCC is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-design","relevance":"Public technical context for microgrid synchronising interfaces. Microgrid power and control interfaces, synchronisation and source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["25-synchronism-check","synchronoscope","microgrid-synchronising-timeout-indication"],"artwork":"pi26-microgrid-breaker-closing-time-compensation","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-sync","input":"Phase evolution and breaker timing","output":"Compensated close request"},"plainEnglish":{"title":"What this block does","introduction":"Accounts for the defined breaker operating-time model in its assigned synchronising command.","example":"In a microgrid reconnecting at its point of common coupling, a synchroniser can adjust the island reference while a separate permissive confirms the permitted relationship across the open breaker. For this reference, the drawing identifies “Phase evolution and breaker timing” at the input and “Compensated close request” at the output. The model requires validated breaker data.","drawings":"Start at the named input: Phase evolution and breaker timing. Identify its source device or document and the state represented on the drawing. Follow the named output: Compensated close request. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Phase evolution and breaker timing"},{"name":"Output","meaning":"Compensated close 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":["Phase evolution and breaker timing","MBCC","Compensated close request"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid Flex components and control design","url":"https://productinfo.se.com/microgrid_guide/0100db2503_ecostruxure-microgrid-flex_design-guide_iec/English/0100DB2503-Microgrid%20Flex%20Design%20Guide-IEC-Optimize%20%28bookmap%29_DD00654397.XML.xml/%24/MicrogridFlexComponents-3A7DD96C"}],"profileId":"power-installation-microgrid-sync"},"url":"https://eloragrid.ai/symbols/microgrid-breaker-closing-time-compensation","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-breaker-closing-time-compensation.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-design","publisher":"Schneider Electric","title":"Microgrid Flex components and control design","url":"https://productinfo.se.com/microgrid_guide/0100db2503_ecostruxure-microgrid-flex_design-guide_iec/English/0100DB2503-Microgrid%20Flex%20Design%20Guide-IEC-Optimize%20%28bookmap%29_DD00654397.XML.xml/%24/MicrogridFlexComponents-3A7DD96C","scope":"Microgrid power and control interfaces, synchronisation and source coordination.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid synchronising interfaces. Microgrid power and control interfaces, synchronisation and source coordination. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}