IEEE Std 620-1987
IEEE Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 hp

Standard No.

IEEE Std 620-1987

Release Date

1987

Published By

Institute of Electrical and Electronics Engineers (IEEE)

Status

Be replaced 1996-08

Replace By

IEEE Std 620-1996

Latest

IEEE Std 620-2022

Scope

Thermal limit curves for induction machines are defined. A procedure is established for the presentation of these curves, and guidance for the interpretation and use of these curves for machine thermal protection is provided.

IEEE Std 620-1987 history

• 2022 IEEE Std 620-2022 IEEE Guide for the Presentation of Thermal Limit Curves for Squirrel Cage Induction Machines - Redline
• 1996 IEEE Std 620-1996 IEEE Guide for the presentation of thermal limit curves for squirrel cage induction machines
• 1987 IEEE Std 620-1987 IEEE Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 hp
• 1981 IEEE 620-1981 Trial-Use Guide for Construction and Interpretation of Thermal Limit Curves for Squirrel-Cage Motors Over 500 HP