提高微机型发电机变压器保护动作可靠性的研究  

Study on Improving Reliability of Microprocessor-based Generator-transformer Unit Protection

作　　者：吴济安[1] 李莉[1] 李玉海 

机构地区：[1]国电南京自动化股份有限公司,江苏南京210003 [2]西北电力科学研究院,陕西西安710054

出　　处：《电力设备》2003年第5期20-24,共5页Electrical Equipment

摘　　要：研究提高微机发电机变压器保护动作可靠性的措施,除了确保保护装置中各元器件质量及二次回路正确之外,简化保护的配置、硬件系统有足够的冗余度、采用正确的启动方式及取消公用闭锁元件、正确整定保护的动作值及具有完善的人机对话功能的人机界面,是提高微机发电机变压器保护动作可靠性及确保机组安全经济运行的重要措施。This paper deal with the methods of improving the reliability of microprocessor-based generator-transformer unit protection and making G-T unit operates economically and safely. The first important ways are to improve the quality of the components, witch the protective equipment consist of, and no mistakes in second circuit connection. The another important ways are: to simplify the protection composition; to have the redundancy of hardware; to take the right way to power on the trip circuit and give up the public block circuit; to set the protection properly; to make the man-machine interface friendly.

关 键 词：微机保护 配置 可靠性 发电机 变压器 保护动作 

分 类 号：TM77[电气工程—电力系统及自动化]