# ANSI/IEEE Star-stator wound-rotor motor with rotor starter form Canonical URL: https://eloragrid.ai/symbols/ansi-star-stator-wound-rotor-motor-with-rotor-starter Publisher: Elora Grid Updated: 2026-10-28 Lookup label: HMO1M5 Drawing use: SLD, Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: 3 Phase Asynchro Star Connected Stator Auto Starter on Rotor Autodesk IEEE Symbol Preview: 3 Phase Motors, block HMO1M5. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Star-stator wound-rotor motor with rotor starter](https://eloragrid.ai/symbols/iec-star-stator-wound-rotor-motor-with-rotor-starter) IEEE-library reference for star-stator wound-rotor motor with rotor starter, with its operating meaning, connection notes and public vendor block identity. ## In plain English ### What does ANSI/IEEE Star-stator wound-rotor motor with rotor starter form mean? This reference locates star-stator wound-rotor motor with rotor starter in Autodesk's IEEE-oriented 3 phase motors family. This representation distinguishes star-connected stator and a starter arrangement associated with the rotor circuit. The public library uses HMO1M5 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. ### A simple example Trace each winding, supply and accessible neutral through the complete machine or transformer connection diagram. Keep the phase arrangement, terminal labels and any clock notation attached to the device; neither the convention label nor this educational outline supplies its ratings. ### What the drawings help you do Show stator supply, rotor connections and the selected starting equipment. Rotor-circuit starting and stator voltage starting are different circuit arrangements. Show stator supply, rotor connections and the selected starting equipment. Rotor-circuit starting and stator voltage starting are different circuit arrangements. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ### This particular reference IEEE-library reference for star-stator wound-rotor motor with rotor starter, with its operating meaning, connection notes and public vendor block identity. Rotor-circuit starting and stator voltage starting are different circuit arrangements. ### Terms - Winding: A coil of conductor inside an electrical machine or transformer. - Phase: One of the related AC waveforms in a power system. - Terminal: An identified point where a conductor connects. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview — 3 Phase Motors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-392101FD-A88C-4BAC-96CD-1C676094C262.htm) ## What it represents This reference locates star-stator wound-rotor motor with rotor starter in Autodesk's IEEE-oriented 3 phase motors family. This representation distinguishes star-connected stator and a starter arrangement associated with the rotor circuit. The public library uses HMO1M5 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. Trace each winding, supply and accessible neutral through the complete machine or transformer connection diagram. Keep the phase arrangement, terminal labels and any clock notation attached to the device; neither the convention label nor this educational outline supplies its ratings. Show stator supply, rotor connections and the selected starting equipment. Rotor-circuit starting and stator voltage starting are different circuit arrangements. Show stator supply, rotor connections and the selected starting equipment. Rotor-circuit starting and stator voltage starting are different circuit arrangements. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ## How to read it - Show stator supply, rotor connections and the selected starting equipment. - Rotor-circuit starting and stator voltage starting are different circuit arrangements. ## Information to show or reference - Identify the associated device, circuit or diagram boundary. - Show stator supply, rotor connections and the selected starting equipment. - Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form. ## Important distinction Rotor-circuit starting and stator voltage starting are different circuit arrangements. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: 3 Phase Motors; published form: 3 Phase Asynchro Star Connected Stator Auto Starter on Rotor. - Public vendor block: HMO1M5. Vendor library token, not an IEEE symbol number. - Information added: Show stator supply, rotor connections and the selected starting equipment. - Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview — 3 Phase Motors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-392101FD-A88C-4BAC-96CD-1C676094C262.htm) — Autodesk. Public IEEE-oriented 3 Phase Motors table explicitly lists HMO1M5 as 3 Phase Asynchro Star Connected Stator Auto Starter on Rotor. This supports the vendor convention context, not reproduction of the publisher graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.