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

IEEE / ANSI

ANSI/IEEE active power indicator symbol

The active power indicator, usually labelled W or kW, needs both current and voltage inputs. On a single-line diagram it is drawn off the CT and VT secondaries of a feeder or generator, and on a schematic its current coils sit in series with the CT circuit while its voltage elements are connected across the VT secondary.

Drawing use: SLD / Schematic
Application: Metering & protection
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Instrumentation and Sensors form: Active Power Indicator. Autodesk publishes this block under its IEEE Symbol Preview. The counterpart is the matching functional concept in the library; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

An active power indicator shows instantaneous watts; a recording wattmeter keeps a time record and a kWh meter integrates energy.

Full reference

Symbols

Active-power indicator

An active-power indicator displays real power derived from its specified measurement inputs. On an SLD it identifies the monitored feeder or source; the schematic supplies phase and ratio details.

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

A distinction that matters

Active-power indication differs from reverse-power protection, even when both use the same measured quantity.

Full reference

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