CT
Current transformer
A current-measurement transformer used with metering and protection equipment.
SLD / Schematic
Symbols · SYNC SCOPE
Synchronoscope
A synchronoscope indicates the phase relationship and relative frequency behaviour of two AC sources.
SLD / Schematic · SYNC SCOPE
What it represents
A synchronoscope indicates the phase relationship and relative frequency behaviour of two AC sources. Its input connections identify which source is incoming and which is the reference.
How to read it
- Trace both source inputs and their selected voltage phases.
- 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
- Name incoming and reference sources
- Show measurement selection
- Reference operating indication convention
A distinction that matters
A synchronoscope provides indication; a synchronism-check relay provides a configured permissive output.
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: Instrumentation and sensors
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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