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

Symbols

Diesel generator set

A diesel generator set combines a diesel engine, an alternator, a controller and usually a generator breaker into one package. On a microgrid single-line diagram it is the dispatchable source that sets voltage and frequency when the utility is absent, or that supports the battery during long periods of low renewable output.

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

A distinction that matters

A diesel set uses compression ignition and liquid fuel; a gas engine set uses spark ignition and gaseous fuel with different load-acceptance behaviour.

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.