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.

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Symbols

Gas engine generator set

A gas engine generator set uses a spark-ignited reciprocating engine running on natural gas, biogas, landfill gas or LPG. These sets are common in combined heat and power plants, prime power microgrids and sites with a reliable gas supply, and they are often run continuously rather than only as backup.

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

A distinction that matters

A gas engine set uses spark ignition and gaseous fuel; a gas turbine generator uses a continuous-combustion turbine.

Full reference

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

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