IEEE / ANSI · M 3PH SYNC

ANSI/IEEE Three-phase synchronous motor form

IEEE-library form of three-phase synchronous motor: a synchronous motor operates with a documented synchronous relationship to the electrical supply.

In plain English

What does ANSI/IEEE Three-phase synchronous motor form mean?

This reference locates three-phase synchronous motor in Autodesk's IEEE-oriented 3 phase motors family. A synchronous motor operates with a documented synchronous relationship to the electrical supply. Its excitation arrangement and starting/control system require device-specific information. The public library uses HMO1M17 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.

Identify the device and formRead the connections and stateCheck 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.

What the drawings help you do

Identify any field or excitation supply separately from the main stator circuit. Synchronous operation is different from an induction motor's operating principle. 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 form of three-phase synchronous motor: a synchronous motor operates with a documented synchronous relationship to the electrical supply. Synchronous operation is different from an induction motor's operating principle.

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.

Read the source: Autodesk IEEE Symbol Preview — 3 Phase Motors

IEEE / ANSI · 3 Phase Synchronous AC Motor

Autodesk IEEE Symbol Preview: 3 Phase Motors, block HMO1M17. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.

SLD / Schematic · M 3PH SYNCANSI/IEEE Three-phase synchronous motor form: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

This reference locates three-phase synchronous motor in Autodesk's IEEE-oriented 3 phase motors family. A synchronous motor operates with a documented synchronous relationship to the electrical supply. Its excitation arrangement and starting/control system require device-specific information. The public library uses HMO1M17 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.

Identify any field or excitation supply separately from the main stator circuit. Synchronous operation is different from an induction motor's operating principle. 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

  • 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.

Information to show or reference

  • State motor rating
  • Show excitation reference
  • Link starting and protection circuits

A distinction that matters

Synchronous operation is different from an induction motor's operating principle.

Sources you can follow

These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.

Autodesk IEEE Symbol Preview — 3 Phase Motors

Public IEEE-oriented 3 Phase Motors table explicitly lists HMO1M17 as 3 Phase Synchronous AC Motor. This supports the vendor convention context, not reproduction of the publisher graphic.

Autodesk · Public reference checked 14 October 2026 · Link only

About this graphic

This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.

SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.

Entry JSON · Entry Markdown · Last editorial update: 28 October 2026

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