{"schemaVersion":1,"slug":"three-phase-synchronous-motor","name":"Three-phase synchronous motor","kind":"symbol","abbreviation":"M 3PH SYNC","aliases":["HMO1M17","VMO1M17"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A synchronous motor operates with a documented synchronous relationship to the electrical supply.","description":["A synchronous motor operates with a documented synchronous relationship to the electrical supply. Its excitation arrangement and starting/control system require device-specific information."],"readingNotes":["Identify any field or excitation supply separately from the main stator circuit.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["State motor rating","Show excitation reference","Link starting and protection circuits"],"distinction":"Synchronous operation is different from an induction motor's operating principle.","facts":[{"label":"Drawing role","value":"Rotating or linear load"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HMO1M17, VMO1M17 (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":"autodesk-motors","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["motor","contactor"],"artwork":"edu-three-phase-synchronous-motor","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/three-phase-synchronous-motor","illustration":{"url":"https://eloragrid.ai/library/illustrations/three-phase-synchronous-motor.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-motors","title":"Three-phase motor symbol variants","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-385CBE83-33A3-4314-913E-3B59A6D05F22.htm","type":"cad-reference","scope":"Motor variants including asynchronous, synchronous and connection-count differences.","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."}]}