GE励磁低励限制与汽轮发电机失磁保护及进相试验配合校核  

Coordination check of GE low excitation limit with field loss protection and leading phase test for turbo-generator

作　　者：郑桂杰 刘宁 刘晓文 郝宇 孙鹏 ZHENG Guijie;LIU Ning;LIU Xiaowen;HAO Yu;SUN Peng(Dalat Power Plant of Northerm United Power Co.,Ltd,Ordos,Inner Mongolia 014300)

机构地区：[1]北方联合电力有限责任公司达拉特发电厂,内蒙古鄂尔多斯014300

出　　处：《电气技术》2021年第11期42-46,50,共6页Electrical Engineering

摘　　要：为防止发电机组进相运行因进相深度过大而非正常停运,提出GE发电机励磁低励限制与汽轮发电机失磁保护、进相试验配合校核方法。首先分析发电机进相运行时励磁系统低励限制与失磁保护之间的配合关系;然后根据机组实际励磁参数、发电机失磁保护定值、机组进相试验报告,校核GE EX2100励磁调节器低励限制与发电机失磁保护、进相试验间的配合是否满足要求,对不满足配合关系的低励限制参数给出调整方法。该方法简便易行,现场实例校核结果验证了其有效性。In order to prevent the generator from abnormal shutdown due to the excessive depth of leading phase operation,this paper presents a coordination check method of low excitation limit with field loss protection and leading phase test for turbo-generator.The coordination relationship between low excitation limit and field loss protection is analyzed.Then,according to the excitation parameters,the setting value of field loss protection and the leading phase test results of the generator unit,the GE EX2100 excitation regulator is checked that its low excitation limit value matches with the generator field loss protection and leading phase test results,and the adjustment method is given for the low excitation limit parameters which do not meet the matching relationship.The method is simple and easy to implement,and its effectiveness is verified by the check results of field examples.

关 键 词：GE励磁 低励限制 失磁保护 进相试验 配合 

分 类 号：TM311[电气工程—电机]