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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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MWCCI

Symbols

Microgrid wind curtailment command interface

Transfers the permitted wind-plant power restraint to its assigned resource controller. Renewable-generation coordination connects variable resource availability, inverter operating limits and the microgrid power target. Available solar or wind power, an issued curtailment request and actual delivered power are different signals.

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

A distinction that matters

Plant controller response must be verified. 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

INV STR

Symbols

PV string inverter

A string inverter connects one or a few PV strings directly to its DC inputs, usually with two or more independent maximum power point trackers. In commercial and utility plants many string inverters are spread across the array and their AC outputs are collected at an AC combiner board.

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

A distinction that matters

A string inverter serves a few strings near the array; a central inverter collects many combined strings at one large unit.

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.