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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

67Q

Protection functions

Directional negative-sequence overcurrent

Uses negative-sequence quantities to supervise overcurrent operation in a defined direction.

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

A distinction that matters

67Q is a sequence-based directional element, not a physical negative-sequence CT connection.

Full reference

Protection functions

Directional overcurrent

Directional overcurrent combines an overcurrent operating condition with a direction criterion defined by the device and application. Its full name and suffix can distinguish phase and earth-fault implementations, measurement inputs and operating stages.

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

A distinction that matters

A 67 reference is not the same as directional power 32. Their quantities and operating criteria differ.

Full reference

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