{"schemaVersion":1,"slug":"microgrid-measured-load-group-estimator","name":"Microgrid measured-load group estimator","kind":"symbol","abbreviation":"MMGE","aliases":["Microgrid load shedding and restoration","microgrids Microgrid load shedding and restoration","microgrids","Microgrids","Load group measurements","Group power estimate"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Calculates the assigned group demand from its identified measurement inputs.","description":["Calculates the assigned group demand from its identified measurement inputs. Load management balances the available electrical supply against the loads that remain connected. Shedding, restoration, priority and proof of disconnection are separate control functions and should remain traceable to individual load groups.","In a microgrid island, the controller can disconnect lower-priority loads when a source is lost and later request restoration when the documented reserve and stability conditions permit it. For this reference, the drawing identifies “Load group measurements” at the input and “Group power estimate” at the output. Measurement coverage must match the controlled group.","Identify each load group, priority, measured contribution and feedback. Shedding amounts, operating times and restoration conditions require the approved power-management design and the actual connected-load data. 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: Load group measurements. Identify its source device or document and the state represented on the drawing.","Follow the named output: Group power estimate. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Measurement coverage must match the controlled group.","Identify each load group, priority, measured contribution and feedback. Shedding amounts, operating times and restoration conditions require the approved power-management design and the actual connected-load data."],"drawingChecklist":["Label the source and connection reference for load group measurements.","Identify the destination and defined state of group power estimate.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Measurement coverage must match the controlled group."],"distinction":"Measurement coverage must match the controlled group. 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":"Load group measurements"},{"label":"Output / connection","value":"Group power estimate"},{"label":"Lookup label","value":"MMGE is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-study","relevance":"Public technical context for microgrid load shedding and restoration. 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":["microgrid-controller","generic-electrical-load","microgrid-fast-power-deficit-shedding-request"],"artwork":"pi26-microgrid-measured-load-group-estimator","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-loads","input":"Load group measurements","output":"Group power estimate"},"plainEnglish":{"title":"What this block does","introduction":"Calculates the assigned group demand from its identified measurement inputs.","example":"In a microgrid island, the controller can disconnect lower-priority loads when a source is lost and later request restoration when the documented reserve and stability conditions permit it. For this reference, the drawing identifies “Load group measurements” at the input and “Group power estimate” at the output. Measurement coverage must match the controlled group.","drawings":"Start at the named input: Load group measurements. Identify its source device or document and the state represented on the drawing. Follow the named output: Group power estimate. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Load group measurements"},{"name":"Output","meaning":"Group power estimate"},{"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":["Load group measurements","MMGE","Group power estimate"],"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-loads"},"url":"https://eloragrid.ai/symbols/microgrid-measured-load-group-estimator","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-measured-load-group-estimator.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 load shedding and restoration. 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."}]}