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

MLC

Symbols

Microgrid load-disconnection confirmation

Checks the assigned feedback that a selected load group has disconnected. Load management balances the available electrical supply against the loads that remain connected. Shedding, restoration, priority and proof of disconnection are separate control functions and should remain traceable to individual load groups.

Drawing use: Schematic
Application: Microgrid systems
Reference family: Manufacturer

A distinction that matters

Command acceptance is not physical disconnection. This reference describes the named application; it does not establish a new IEC graphical symbol, an ANSI device-function number or an exact manufacturer connection diagram.

Full reference

MGC

Symbols

Microgrid controller

A microgrid controller coordinates the sources, storage and controllable loads within a microgrid. It sets operating points for inverters and gensets, maintains spinning reserve, sheds and restores load, and manages transitions between grid-connected and islanded operation, including black start and resynchronisation.

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

A distinction that matters

A microgrid controller supervises the whole system; a genset or inverter controller controls one device.

Full reference

Follow the full entry for source drawings and the appropriate standard or selected product. Equipment previews show a manufacturer drawing where available, otherwise a 3D thumbnail.