{"schemaVersion":1,"slug":"single-phase-ac-source","name":"Single-phase AC source","kind":"symbol","abbreviation":"AC 1PH","aliases":["HPW1_1PH","VPW1_1PH"],"category":"microgrid-systems","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A single-phase AC source identifies a documented source boundary in a schematic or SLD.","description":["A single-phase AC source identifies a documented source boundary in a schematic or SLD. The source label and supply data explain what provides the circuit's voltage and frequency."],"readingNotes":["Determine whether the source is a utility connection, transformer winding or auxiliary source.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Name source origin","State voltage/frequency","Show conductor and neutral arrangement"],"distinction":"A source-boundary symbol is not a product-specific generator or transformer diagram.","facts":[{"label":"Drawing role","value":"Supply or network role"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HPW1_1PH, VPW1_1PH (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"pub-symbol-earthing-surge","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["generator","busbar"],"artwork":"edu-single-phase-ac-source","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/single-phase-ac-source","illustration":{"url":"https://eloragrid.ai/library/illustrations/single-phase-ac-source.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-earthing-surge","title":"AutoCAD Electrical: Earthing, sources and surge protection","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1E3FDEAE-B4B2-417C-8075-108AA2C6E509.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}