大机组保护及自动装置在工程中应用的几点探讨

Analysis of automatic equipment and protective relays of large generator and transformer in engineering application

结合《继电保护和安全自动装置技术规程》、《大型发电机变压器继电保护整定导则》、《二十五项反事故措施》等技术规程、规范的要求,以及汕尾电厂两台600 MW机组的工程实践,对大机组发变组保护双重化、发电机保护、变压器保护、500 kV升压站的系统保护、厂用电保护、厂用电源切换装置、励磁系统等自动装置的配置、整定等应用中的若干问题进行了粗浅的讨论,供设计和运行单位参考。

This paper combines the ＂Technical code for relaying protection and security automatic equipment＂ and the ＂guide of calculating setting of relay protection for large generator and transformer＂ and the ＂twenty-five measures to prevent accidents＂ and some technical code and practice of engineering of two 600MW generator in Shanwei Power Plant. Analysis of configuration and setting of automatic equipment and protective relays are mode for transformer,generator,bus bar,the low transformer, motor and the excitation system.