CT
Current transformer
A current-measurement transformer used with metering and protection equipment.
SLD / Schematic
Symbols · P LOW
Minimum active-power relay
A minimum active-power relay operates according to a configured low active-power condition.
SLD / Schematic · P LOW
What it represents
A minimum active-power relay operates according to a configured low active-power condition. The measurement direction and enable logic determine what low power means in the control sequence.
How to read it
- Identify the directional convention before evaluating the threshold.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Show voltage/current inputs
- State power direction
- Reference threshold and enabling logic
A distinction that matters
Minimum active power and reverse power are different operating criteria.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Miscellaneous monitoring relays
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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