{"schemaVersion":1,"slug":"electrostatically-screened-transformer","name":"Electrostatically screened transformer","kind":"symbol","abbreviation":"TX SCREEN","aliases":["HXF1T3","VXF1T3"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A screened transformer includes a documented screen between windings.","description":["A screened transformer includes a documented screen between windings. The drawing must show the screen connection separately from the magnetic coupling and winding terminals."],"readingNotes":["Trace the screen lead to the earth or bonding point specified by the manufacturer.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Show screen terminal","Identify winding voltages","Reference screen-earthing instructions"],"distinction":"A screen connection is not an extra power winding or a guarantee of every isolation requirement.","facts":[{"label":"Drawing role","value":"Winding connection"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HXF1T3, VXF1T3 (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"autodesk-transformers","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["power-transformer","voltage-transformer"],"artwork":"edu-electrostatically-screened-transformer","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/electrostatically-screened-transformer","illustration":{"url":"https://eloragrid.ai/library/illustrations/electrostatically-screened-transformer.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-transformers","title":"Power, potential and autotransformer symbols","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-C1FE1690-DBF4-4F69-85C4-28E41F0A6392.htm","type":"cad-reference","scope":"Power transformers, voltage transformers, winding counts, screens and autotransformers.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}