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

G 3~ BX

Symbols

Synchronous generator with brushless exciter

Most modern generating sets use a brushless excitation system: a small exciter generator on the same shaft feeds a rotating diode rectifier, which supplies DC to the main field without slip rings. The automatic voltage regulator controls the exciter field, and some sets add a permanent-magnet pilot exciter to power the regulator independently of the output voltage.

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

A distinction that matters

This form shows the excitation chain explicitly; the plain synchronous generator symbol shows only the main machine.

Full reference

G 3PH SYNC Three-phase synchronous generator: original educational illustration

Symbols

Three-phase synchronous generator

A three-phase synchronous generator supplies a documented AC source associated with its mechanical prime mover and excitation system. The electrical drawing identifies terminals, neutral and generator-control connections.

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

A distinction that matters

The electrical generator representation is different from the complete mechanical generator package envelope.

Full reference

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