This standard defines elements and commonly used components in excitation control systems and contains definitions for excitation systems as applied to synchronous machines. These definitions should be useful in the following areas: -- Writing excitation systems specifications -- Evaluating excitation system performance -- Specifying methods for excitation system tests -- Preparing related excitation system standards -- Serving as an educational means for those becoming acquainted with excitation systems -- Modeling excitation systems
- Sponsor Committee
- PE/EDPG - Energy Development & Power Generation
Learn More - Status
- Inactive-Reserved Standard
- PAR Approval
- 1998-12-08
- Superseded by
- 421.1-2007
- Superseding
- 421.1-2007
- Board Approval
- 2007-03-08
- History
-
- ANSI Approved:
- 2007-09-27
- Published:
- 2007-07-15
- Inactivated Date:
- 2021-03-25
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More - Sponsor Committee
- PE/EDPG - Energy Development & Power Generation
Learn More - Working Group
-
ESCS - WG 421.1 - ESCS - Definitions for Excitation Systems for Synchronous Machines Working Group
Learn More - IEEE Program Manager
- Malia Zaman
Contact - Working Group Chair
- Eugene Asbury
No Active Projects
421.1-2021
IEEE Standard Definitions for Excitation Systems for Synchronous Machines
Defined in this standard are elements and commonly used components in excitation systems. Also contained are definitions for excitation systems applied to synchronous machines. An included annex contains one-line block diagrams of some typical excitation systems. These are presented to illustrate the defined terminology referenced in this standard and clarify the understanding of the excitation control system.
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards