M
Three-phase motor
An electrical motor load connected to its switching and protective equipment.
SLD / Schematic
Symbols · M 3PH SYNC
Three-phase synchronous motor
A synchronous motor operates with a documented synchronous relationship to the electrical supply.
SLD / Schematic · M 3PH SYNC
What it represents
A synchronous motor operates with a documented synchronous relationship to the electrical supply. Its excitation arrangement and starting/control system require device-specific information.
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.
Three-phase motor symbol variants
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
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.
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