GT100系列微机型发电机变压器保护装置的设计

The design of MGT100 microprocessor based relay for generator and transformer

论述了MGT1 0 0系列微机型发电机变压器保护装置设计开发所依据的电力系统主设备保护动作情况的统计数据和动作原因分析、设计中所依据的高可靠性为主的总体设计原则和分布式单元结构、嵌入式控制器技术、分层式软件功能、实时操作系统等新技术的使用和软硬件设计要点。介绍了所采用的四段式比例差动、自动跟踪式定子 1 0 0 %接地保护和乒乓式转子接地保护等主要保护原理的特点 ,发电机、变压器后备保护的“N + 1”、“N + 2”配置方法和组屏设计方法 ,以及该系列装置在华能明台电厂等厂站的运行情况。证明达到了可靠性高、保护配置齐全、组屏灵活、调试简单、使用方便的设计要求。

The statistics data of the execution of the MGT100 microprocessor based relay for large size power apparatus is introduced in this paper, much new techniques such as distributed unit structure、Embedded controller、layeredsoftware function techniques、real time operation system is adopted in the design of this kind of relay. For enhancing relay characteristics some principles has been taken into this kind of relay i.e.four_stage ratio differential relay, 100% stator earth relay with automatic tracing, rotor earth relay with ping_pang characteristics,the “N+1”, “N+2” ways of relay configuration. With the experience of the operation situation of MGT100 relays for more than five years, it’s characteristics has proved that the MGT100 relays meeting the demands of high reliability, completely configuration, flexible assembly anb conveniently in using etc.