# ANSI/IEEE Substation form

Canonical URL: https://eloragrid.ai/symbols/ansi-substation
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: SUBSTATION
Drawing use: SLD, Schematic
Reference families: IEEE / ANSI, Manufacturer

## Symbol convention

Convention: IEEE / ANSI
Form: Substation, In Service Or Unspecified
Autodesk IEEE Symbol Preview: Power Stations, block HDV1_S00390. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Related representation: [Substation](https://eloragrid.ai/symbols/substation)

IEEE-library form of substation: a substation representation identifies a documented facility boundary in a network or system diagram.

## In plain English

### What does ANSI/IEEE Substation form mean?

This reference locates substation in Autodesk's IEEE-oriented power stations family. A substation representation identifies a documented facility boundary in a network or system diagram. Its buses, transformers, switching devices and protection are developed on linked drawings. The public library uses HDV1_S00390 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

### A simple example

Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits.

### What the drawings help you do

Read the internal electrical arrangement from the referenced substation single-line diagram. A substation-type marker does not describe a complete switchgear lineup or general arrangement footprint. 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 substation: a substation representation identifies a documented facility boundary in a network or system diagram. A substation-type marker does not describe a complete switchgear lineup or general arrangement footprint.

### Terms

- Winding: A coil of conductor inside an electrical machine or transformer.
- Terminal: An identified point where a conductor connects.
- Rating: A value stating the conditions for which equipment is specified.

Concept diagram: Identify the device and form → Read the connections and state → Check 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.

- [Autodesk IEEE Symbol Preview: Power Stations](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-002D3D7C-C3E9-4B60-9F6D-FFBB383C1862.htm)


## What it represents

This reference locates substation in Autodesk's IEEE-oriented power stations family. A substation representation identifies a documented facility boundary in a network or system diagram. Its buses, transformers, switching devices and protection are developed on linked drawings. The public library uses HDV1_S00390 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Use the surrounding circuit labels and the project legend to identify the intended operating condition and connection. Carry the same device reference into the schedule or equipment document so the symbol can be reconciled with its real terminals, function and operating limits.
Read the internal electrical arrangement from the referenced substation SLD. A substation-type marker does not describe a complete switchgear lineup or GA footprint. 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 internal electrical arrangement from the referenced substation SLD.
- 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 substation
- Identify network connections
- Reference internal drawing set

## Important distinction

A substation-type marker does not describe a complete switchgear lineup or GA footprint.

## Facts

- Convention evidence: Autodesk IEEE Symbol Preview: Power Stations; published form: Substation, In Service Or Unspecified.
- Public vendor block: HDV1_S00390. Vendor library token, not an IEEE symbol number.
- Drawing role: Supply or network role
- Identifier status: 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.
- Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified.

## Public references

- [Autodesk IEEE Symbol Preview: Power Stations](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-002D3D7C-C3E9-4B60-9F6D-FFBB383C1862.htm) — Autodesk. Public IEEE-oriented Power Stations table explicitly lists HDV1_S00390 as Substation, In Service Or Unspecified. This supports the vendor convention context, not reproduction of the publisher graphic.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.