{"schemaVersion":1,"slug":"excess-energy-meter","name":"Excess-energy meter","kind":"symbol","abbreviation":"kWh>","aliases":["over-threshold energy meter","excess consumption meter"],"category":"measurement-protection","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC"],"summary":"Integrating meter that counts only the energy taken while power is above a set threshold.","description":["An excess-energy meter records energy only for the part of the load above a set power level. It was used for tariffs that penalised consumption beyond an agreed capacity, and the same idea appears in modern meters as threshold registers.","The symbol identifies the excess function but not the threshold, which is a contractual value that must be written beside the meter. Without that value the register cannot be interpreted or checked."],"readingNotes":["Find the stated power threshold.","Check the register is read with the main energy register."],"drawingChecklist":["State threshold power","Reference tariff clause","Show measuring inputs"],"distinction":"An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.","facts":[{"label":"Integrated quantity","value":"Energy above a set power"},{"label":"Key setting","value":"Power threshold"},{"label":"Preview","value":"Independent educational concept; consult the applicable standard and project legend for the exact graphic"}],"references":[{"sourceId":"iec-diagrams","relevance":"IEC context for graphical symbols used in diagrams; no IEC graphic is reproduced."},{"sourceId":"pub-symbol-energy-meter","relevance":"Public explanation of energy and power measurement quantities used by meters."}],"related":["active-energy-meter","maximum-demand-energy-meter","integrating-instrument-general-symbol"],"artwork":"s28-excess-energy-meter","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","plainEnglish":{"title":"What does Excess-energy meter mean?","introduction":"An excess-energy meter records energy only for the part of the load above a set power level. It was used for tariffs that penalised consumption beyond an agreed capacity, and the same idea appears in modern meters as threshold registers.","example":"The symbol identifies the excess function but not the threshold, which is a contractual value that must be written beside the meter. Without that value the register cannot be interpreted or checked.","drawings":"Find the stated power threshold. Check the register is read with the main energy register. An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.","terms":[{"name":"Schematic","meaning":"A drawing showing function and connections rather than physical appearance."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"IEC graphical symbols for diagrams","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/"},{"label":"Power and energy measurement quantities","url":"https://www.se.com/ph/en/faqs/FA343278/"}],"detail":"Integrating meter that counts only the energy taken while power is above a set threshold. An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/excess-energy-meter","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/excess-energy-meter.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-diagrams","title":"IEC graphical symbols for diagrams","publisher":"IEC","url":"https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/","type":"standard","scope":"IEC 60617 and related symbol-design publications. Full database access requires a subscription.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"IEC context for graphical symbols used in diagrams; no IEC graphic is reproduced."},{"id":"pub-symbol-energy-meter","title":"Power and energy measurement quantities","publisher":"Schneider Electric","url":"https://www.se.com/ph/en/faqs/FA343278/","type":"manufacturer","scope":"Public manufacturer explanation of the equipment function and selection context.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public explanation of energy and power measurement quantities used by meters."}]}