TX D-Y
Delta-star transformer
A delta-star transformer provides a delta-connected winding and a star-connected winding.
SLD / Schematic
IEEE / ANSI · TX D-Y
ANSI/IEEE Delta-star transformer form
IEEE-library form of delta-star transformer: a delta-star transformer provides a delta-connected winding and a star-connected winding.
In plain English
What does ANSI/IEEE Delta-star transformer form mean?
This reference locates delta-star transformer in Autodesk's IEEE-oriented 3 phase transformers family. A delta-star transformer provides a delta-connected winding and a star-connected winding. Where the star point is brought out, its neutral and earthing arrangement are separate drawing requirements. The public library uses HXF1T14 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Trace each winding, supply and accessible neutral through the complete machine or transformer connection diagram. Keep the phase arrangement, terminal labels and any clock notation attached to the device; neither the convention label nor this educational outline supplies its ratings.
What the drawings help you do
Do not infer a grounded neutral merely from a star winding. A star winding can exist without an accessible or earthed neutral terminal. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of delta-star transformer: a delta-star transformer provides a delta-connected winding and a star-connected winding. A star winding can exist without an accessible or earthed neutral terminal.
- Winding
- A coil of conductor inside an electrical machine or transformer.
- Phase
- One of the related AC waveforms in a power system.
- Terminal
- An identified point where a conductor connects.
Read the source: Autodesk IEEE Symbol Preview: 3 Phase Transformers
IEEE / ANSI · 3 Phase Delta/Star
Autodesk IEEE Symbol Preview: 3 Phase Transformers, block HXF1T14. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
SLD / Schematic · TX D-Y
What it represents
This reference locates delta-star transformer in Autodesk's IEEE-oriented 3 phase transformers family. A delta-star transformer provides a delta-connected winding and a star-connected winding. Where the star point is brought out, its neutral and earthing arrangement are separate drawing requirements. The public library uses HXF1T14 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Trace each winding, supply and accessible neutral through the complete machine or transformer connection diagram. Keep the phase arrangement, terminal labels and any clock notation attached to the device; neither the convention label nor this educational outline supplies its ratings.
Do not infer a grounded neutral merely from a star winding. A star winding can exist without an accessible or earthed neutral terminal. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- Do not infer a grounded neutral merely from a star winding.
- 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
- State complete vector group
- Identify accessible neutral
- Reference neutral earthing
A distinction that matters
A star winding can exist without an accessible or earthed neutral terminal.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview: 3 Phase Transformers
Public IEEE-oriented 3 Phase Transformers table explicitly lists HXF1T14 as 3 Phase Delta/Star. This supports the vendor convention context, not reproduction of the publisher 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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