【摘要】 分析了比率制动式发电机纵差保护的制动特性,计算了不同比率制动特性的定值曲线对应的等效闭锁角。通过实例探讨了纵差保护在几种工况下,不平衡电流在制动特性曲线上的工作区域,最后提出了作者建议的纵差保护整定的方法。更多还原

【Abstract】 The restrained characteristic of ratio differential protection is analyzed. The equal block angle for the ratio differential protection is calculated. Through analyzing the trajectory of the field fault record wave in different working conditions, the paper introduces setting method for generator differential protection to improve the performance of the differential protection.更多还原