Side-by-side reference

Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

First referenceCompare with

M WR

IEEE / ANSI

ANSI/IEEE wound-rotor induction motor symbol

The wound-rotor motor form identifies a machine with a separately documented rotor circuit. The rotor connections and associated control or starting equipment remain distinct from the stator's three-phase supply.

Drawing use: SLD / Schematic
Application: Power distribution
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented 3 Phase Motors functional form. Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

A wound-rotor machine differs electrically from a cage-rotor motor without accessible rotor terminals.

Full reference

M WR

Symbols

Wound-rotor induction motor

A wound-rotor induction motor includes a rotor winding arrangement with documented external connections. The schematic must identify the rotor circuit and any connected starting or control equipment.

Drawing use: SLD / Schematic
Application: Power distribution
Reference family: IEC / Manufacturer

A distinction that matters

A wound-rotor motor has an accessible rotor circuit unlike an ordinary cage-rotor representation.

Full reference

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.