Superseded Standard

IEEE 421-1972

IEEE Standard Criteria and Definitions for Excitation Systems for Synchronous Machines

This document presents criteria, essential elements, and new and revised definitions for excitation systems as applied to electric utility synchronous machines with particular emphasis given to the application of solid-state devices and to terminology common to feedback control systems.

Status
Superseded Standard
Superseded by
421.1-1986
Board Approval
1971-12-02
History
Published:
1972-12-08

Working Group Details

No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards
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