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

AC 3PH

Symbols

Three-phase AC source

A three-phase AC source identifies a documented three-phase supply boundary. Its nominal voltage, phase sequence and neutral availability must be stated where the design relies on them.

Drawing use: SLD / Schematic
Application: Microgrid systems
Reference family: IEC / Manufacturer

A distinction that matters

Three-phase source designation does not establish an accessible neutral conductor.

Full reference

GEN

Symbols

Generator

A generator representation identifies an electrical source in a power system. Its electrical connections and associated switching describe how it supplies the system. The equipment documentation establishes machine type, rating, voltage, earthing and operating capabilities.

Drawing use: SLD / Schematic
Application: Microgrid systems
Reference family: IEC / IEEE / ANSI

A distinction that matters

A generator symbol identifies an electrical source. It does not establish permission to parallel with another source or define the transfer sequence.

Full reference

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