{"schemaVersion":1,"slug":"ansi-voltage-transformer","name":"ANSI/IEEE voltage transformer symbol","kind":"symbol","abbreviation":"VT / PT","aliases":["IEEE voltage transformer symbol","ANSI voltage transformer symbol","HXF1PT"],"category":"measurement-protection","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-oriented graphical reference for voltage transformer, with public vendor evidence and drawing-reading notes.","description":["The potential-transformer form identifies a voltage measurement interface in the IEEE-oriented vendor library. Power connection, winding polarity and secondary protection are read as instrument-transformer information rather than as a general power-supply transformer.","This is a convention-specific lookup based on the publisher's IEEE-labelled preview. The geometry here is independently drawn to explain the connection or operation; it is not a certified reproduction of the standard graphic."],"readingNotes":["Trace both primary voltage connections and the secondary input circuit.","Read the selected library and the project legend together. A vendor block identifier is meaningful within its named library and is not a universal standard-symbol code."],"drawingChecklist":["State VT ratio","Identify primary/secondary terminals","Show protection and earthing references"],"distinction":"Potential transformer is a common name for a VT; a shared word does not make it a CT.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview — Transformers"},{"label":"Public vendor block name","value":"HXF1PT (Autodesk identifier; not an IEEE symbol number)"},{"label":"Standards context","value":"IEEE/ANSI 315-1975 covers diagram graphics. IEEE lists this edition as Inactive-Reserved."},{"label":"Artwork scope","value":"Original functional illustration; exact standard glyph and compliance are not certified"}],"references":[{"sourceId":"ansi-autodesk-68d02867-7a98-47d1-a83f-dbad1ddb616f","relevance":"Exact public IEEE-oriented category page verifying the component name and vendor block identifier."},{"sourceId":"ieee-315","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}],"related":["voltage-transformer","current-transformer","power-transformer","27-undervoltage"],"artwork":"edu-ansi-voltage-transformer","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Autodesk IEEE-oriented Transformers functional form","counterpart":"voltage-transformer","reference":"Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted."},"url":"https://eloragrid.ai/symbols/ansi-voltage-transformer","illustration":{"url":"https://eloragrid.ai/library/illustrations/ansi-voltage-transformer.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"ansi-autodesk-68d02867-7a98-47d1-a83f-dbad1ddb616f","title":"Autodesk IEEE Symbol Preview — Transformers","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-68D02867-7A98-47D1-A83F-DBAD1DDB616F.htm","type":"cad-reference","scope":"Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Exact public IEEE-oriented category page verifying the component name and vendor block identifier."},{"id":"ieee-315","title":"IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams","publisher":"IEEE Standards Association","url":"https://standards.ieee.org/ieee/315/515/","type":"standard","scope":"Graphic symbols and designation letters. IEEE lists this edition as Inactive-Reserved; it is a historical reference, not a claim of current compliance.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}]}