{"schemaVersion":1,"slug":"microgrid-power-balance-event-recorder","name":"Microgrid power-balance event recorder","kind":"symbol","abbreviation":"MPER","aliases":["Microgrid supervisory and communication interfaces","microgrids Microgrid supervisory and communication interfaces","microgrids","Microgrids","Power quantities and event trigger","Power-balance event record"],"category":"microgrid-systems","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Records the defined demand, generation and storage quantities around an operating event.","description":["Records the defined demand, generation and storage quantities around an operating event. Microgrid supervision coordinates measurements, control authority and resource communication without replacing local protection. Each resource value needs a named measurement boundary, freshness condition and intended control use.","In a microgrid control room, the operator can see source availability, active constraints and current operating mode. A communication failure should remain distinguishable from an electrical resource failure. For this reference, the drawing identifies “Power quantities and event trigger” at the input and “Power-balance event record” at the output. Aligned timestamps and measurement boundaries matter.","Identify signal ownership, quality flags, control priority and loss-of-data behavior. These functional references do not certify cyber security, closed-loop performance or equipment interoperability. 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: Power quantities and event trigger. Identify its source device or document and the state represented on the drawing.","Follow the named output: Power-balance event record. Cross-reference its destination and separate the command from confirmation that the equipment responded.","Aligned timestamps and measurement boundaries matter.","Identify signal ownership, quality flags, control priority and loss-of-data behavior. These functional references do not certify cyber security, closed-loop performance or equipment interoperability."],"drawingChecklist":["Label the source and connection reference for power quantities and event trigger.","Identify the destination and defined state of power-balance event record.","Record the equipment or control-document revision supporting this functional block.","Check this application limit in the project design: Aligned timestamps and measurement boundaries matter."],"distinction":"Aligned timestamps and measurement boundaries matter. 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":"Power quantities and event trigger"},{"label":"Output / connection","value":"Power-balance event record"},{"label":"Lookup label","value":"MPER is a library lookup label, not a standard device designation."}],"references":[{"sourceId":"pi26-mg-power","relevance":"Public technical context for microgrid supervisory and communication interfaces. Active and reactive power, generation, load control, operating reserves and system supervision. The application text and educational graphic are independently authored; the publisher does not certify this representation."}],"related":["microgrid-controller","sequence-of-events-recorder","microgrid-disturbance-recorder-trigger-interface"],"artwork":"pi26-microgrid-power-balance-event-recorder","publishedOn":"2026-11-03","updatedOn":"2026-11-03","provenance":"independent-public-research","representation":{"type":"functional-block","focus":"microgrids","family":"microgrid-monitoring","input":"Power quantities and event trigger","output":"Power-balance event record"},"plainEnglish":{"title":"What this block does","introduction":"Records the defined demand, generation and storage quantities around an operating event.","example":"In a microgrid control room, the operator can see source availability, active constraints and current operating mode. A communication failure should remain distinguishable from an electrical resource failure. For this reference, the drawing identifies “Power quantities and event trigger” at the input and “Power-balance event record” at the output. Aligned timestamps and measurement boundaries matter.","drawings":"Start at the named input: Power quantities and event trigger. Identify its source device or document and the state represented on the drawing. Follow the named output: Power-balance event record. Cross-reference its destination and separate the command from confirmation that the equipment responded.","terms":[{"name":"Input","meaning":"Power quantities and event trigger"},{"name":"Output","meaning":"Power-balance event record"},{"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":["Power quantities and event trigger","MPER","Power-balance event record"],"caption":"A reading guide. The entry's original illustration and input/output facts describe this application.","sources":[{"label":"Microgrid control systems","url":"https://selinc.com/services/microgrids-power-management/microgrid-control-systems/"}],"profileId":"power-installation-microgrid-monitoring"},"url":"https://eloragrid.ai/symbols/microgrid-power-balance-event-recorder","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/microgrid-power-balance-event-recorder.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-power","publisher":"SEL","title":"Microgrid control systems","url":"https://selinc.com/services/microgrids-power-management/microgrid-control-systems/","scope":"Active and reactive power, generation, load control, operating reserves and system supervision.","type":"manufacturer","checkedOn":"2026-11-03","reuse":"link-only","relevance":"Public technical context for microgrid supervisory and communication interfaces. Active and reactive power, generation, load control, operating reserves and system supervision. The application text and educational graphic are independently authored; the publisher does not certify this representation."}]}