# ANSI/IEEE three-phase synchronous generator symbol

Canonical URL: https://eloragrid.ai/symbols/ansi-three-phase-synchronous-generator
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: G 3PH SYNC
Drawing use: SLD, Schematic
Reference families: IEEE / ANSI, Manufacturer

## Symbol convention

Convention: IEEE / ANSI
Form: Autodesk IEEE-oriented Generators functional form
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.
Related representation: [Three-phase synchronous generator](https://eloragrid.ai/symbols/three-phase-synchronous-generator)

IEEE-oriented graphical reference for three-phase synchronous generator, with public vendor evidence and drawing-reading notes.

## What it represents

The three-phase synchronous generator form identifies an AC source whose terminals, neutral and excitation are documented separately. Measurement and protection interfaces must be located on the source circuit rather than inferred from the generator circle.
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.

## How to read it

- Trace the excitation and sensing paths with the generator-control references.
- 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.

## Information to show or reference

- State output ratings
- Show neutral/earthing
- Reference excitation/protection circuits

## Important distinction

A generator electrical symbol is different from the complete engine-generator package footprint.

## Facts

- Convention evidence: Autodesk IEEE Symbol Preview — Generators
- Public vendor block name: HPW1G7 (Autodesk identifier; not an IEEE symbol number)
- Standards context: IEEE/ANSI 315-1975 covers diagram graphics. IEEE lists this edition as Inactive-Reserved.
- Artwork scope: Original functional illustration; exact standard glyph and compliance are not certified

## Public references

- [Autodesk IEEE Symbol Preview — Generators](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-6A9FA93B-3010-4274-AE51-20DB3520999C.htm) — Autodesk. Exact public IEEE-oriented category page verifying the component name and vendor block identifier.
- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/) — IEEE Standards Association. Graphic-symbol standards context and official status; not a source of reproduced artwork.

## 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.