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

ISO I-I

Symbols

Analog current signal isolator

A current signal isolator transfers a documented analog current input to an output while providing the specified electrical separation. Signal input, output and auxiliary supply are distinct terminal groups.

Drawing use: SLD / Schematic
Application: Metering & protection
Reference family: Manufacturer

A distinction that matters

Signal isolation is different from changing the power-system voltage with a transformer.

Full reference

PCS

Symbols

Power converter / inverter

A power converter changes electrical power between the circuit forms specified for its application. In a battery energy storage system, a power conversion system commonly provides the interface between DC storage and an AC system. Direction of power flow and operating capabilities are product-specific.

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

A distinction that matters

Inverter, converter and PCS can denote different equipment boundaries. Define what is included in the represented assembly.

Full reference

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