Standard No.:	GB/T 7409.1-2008
English Name:	Excitation systems for synchronous electrical machines - Definitions
Chinese Name:	同步电机励磁系统 定义
Chinese Classification:	K21    Synchronous machine
Professional Classification:	GB    National Standard
ICS Classification:	29.160.20 29.160.20    Generators 29.160.20
Issued by:	AQSIQ; SAC
Issued on:	2008-6-18
Implemented on:	2009-3-1
Status:	to be abolished
Superseded by:	GB/T 7409.1-2024 Excitation systems for synchronous machines—Part 1: Definitions
Superseded on:	2025-3-1
Abolished on:	2025-03-01
Superseding:	GB/T 7409.1-1997 Excitation System for Synchronous Electrical Machines - Definit
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	100.0
Delivery:	via email in 1 business day

1 Scope This part of GB/T 7409 is applicable to the excitation systems of synchronous machines. 2 General Provisions 2.1 Excitation control system Include the feedback control systems of synchronous machine and its excitation system 2.2 Excitation system The equipment providing the field current of a synchronous machine, including all regulating and control elements, as well as field discharge or suppression equipment and protective devices. 2.3 Exciter The source of the electrical power providing the field current of the synchronous machine Note: Examples of the source are: ——A rotating machine, either DC or AC with associated rectifiers. ——One or several transformers with associated rectifiers

Contents Foreword I 1 Scope 2 General Provisions 3 Exciter Categories 4 Excitation System Categories 5 Control Functions Appendix A (Informative) Comparison between Clauses of This Part and IEC 60034-16-1: 1991-02 by Numbers Appendix B (Informative) Technical Differences Between This Part and IEC 60034-16-1: 1991-02 and Their Reasons