Standard No.:	GB/T 7409.3-1997
English Name:	Excitation System for Synchronous Electrical Machines - Technic
Chinese Name:	同步电机励磁系统 大中型同步发电机励磁系统技术要求
Professional Classification:	GB    National Standard
Issued on:	1997-04-10
Implemented on:	1998-4-1
Status:	superseded
Superseded by:	GB/T 7409.3-2007 Excitation system for synchronous electrical machines—Technical requirements of excitation system for large and medium synchronous generators
Superseded on:	2007-8-1
Superseding:	GB 7409-1987 大、中型同步发电机励磁系统基本技术条件
Language:	English
File Format:	PDF
Word Count:	4500 words
Price(USD):	110.0
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1.1 This standard has stated the technical requirements on the excitation devices of the synchronous generator and the rotary condenser, the test items, signs and packaging. It is applicable to the 10MW-and-higher hydraulic generators connected with the electric system and the excitation system of 50MW-and-higher turbogenerators and rotary condensers. 1.2 This standard is exclusively applicable to the excitation system of the following types of exciters. 1.2.1 DC Exciter The dragging method of the DC exciter can adopt the coaxial or non-coaxial method with the main generator. 1.2.2 AC Exciter A. AC Exciter with Stationary Rectifier Note: the rectifier can be controllable or uncontrollable. B. AC Exciter with Rotating Rectifiers (Brushless Exciter) 1.2.3 Static Exciter A. Potential Source Static Exciter; B. Multiple Source Static Exciters