IEEE / ANSI · TX Y-Z

ANSI/IEEE Star-zigzag transformer form

IEEE-library form of star-zigzag transformer: a star-zigzag transformer combines a star-connected winding set with a zigzag-connected set.

In plain English

What does ANSI/IEEE Star-zigzag transformer form mean?

This reference locates star-zigzag transformer in Autodesk's IEEE-oriented 3 phase transformers family. A star-zigzag transformer combines a star-connected winding set with a zigzag-connected set. Its winding arrangement and neutral duties require the manufacturer's complete connection designation. The public library uses HXF1T12 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.

Identify the device and formRead the connections and stateCheck the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

What the drawings help you do

Read the zigzag terminal arrangement from the selected transformer diagram. A zigzag connection is not another spelling of a simple star winding. 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 star-zigzag transformer: a star-zigzag transformer combines a star-connected winding set with a zigzag-connected set. A zigzag connection is not another spelling of a simple star winding.

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 Star/Zigzag

Autodesk IEEE Symbol Preview: 3 Phase Transformers, block HXF1T12. 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 Y-ZANSI/IEEE Star-zigzag transformer form: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

This reference locates star-zigzag transformer in Autodesk's IEEE-oriented 3 phase transformers family. A star-zigzag transformer combines a star-connected winding set with a zigzag-connected set. Its winding arrangement and neutral duties require the manufacturer's complete connection designation. The public library uses HXF1T12 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.

Read the zigzag terminal arrangement from the selected transformer diagram. A zigzag connection is not another spelling of a simple star winding. 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

  • Read the zigzag terminal arrangement from the selected transformer diagram.
  • 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

  • Record connection designation
  • Identify neutral terminal
  • Reference winding ratings

A distinction that matters

A zigzag connection is not another spelling of a simple star winding.

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 HXF1T12 as 3 Phase Star/Zigzag. This supports the vendor convention context, not reproduction of the publisher graphic.

Autodesk · Public reference checked 28 October 2026 · Link only

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.

Entry JSON · Entry Markdown · Last editorial update: 28 October 2026

Put the reference into a drawing workflow.

Elora Grid helps electrical teams work with drawings, specifications and equipment information. Explore the drafting workflow or join the early-access waitlist.

Explore drafting