美国SEL-311C中文说明书

目录

SECTION 8: 断路器监视和表计功能 ............................................................... 8-1

简介 .............................................................................................................................................. 8-1 断路器监视 .................................................................................................................................. 8-1 断路器监视整定值举例 ....................................................................................................... 8-4 断路器监视动作行为举例 ................................................................................................... 8-6 断路器监视输出 ................................................................................................................. 8-12 查看或复归断路器监视信息 ............................................................................................. 8-12 继电器启动跳闸和外部启动跳闸的判断 ......................................................................... 8-13 变电站直流电源监视................................................................................................................. 8-14 直流低电压和过电压元件 ................................................................................................. 8-14 开发需要的逻辑用于低电压或过电压告警 ..................................................................... 8-15 其它应用 ............................................................................................................................. 8-17 查看变电站直流电源电压 ................................................................................................. 8-18 分析变电站直流电源电压 ................................................................................................. 8-18 当用交流电源为继电器供电时的变电站直流电压监视器的操作 ................................. 8-19 需求量表计 ................................................................................................................................ 8-19 热和滚动需求量表计比较 ................................................................................................. 8-20 需求量表计整定值 ............................................................................................................. 8-24 需求量电流逻辑输出应用-抬升对不平衡电流的启动 .................................................... 8-25 查看或复归需求量表计信息 ............................................................................................. 8-27 需求量表计的更新和存储 ................................................................................................. 8-28 能量表计 .................................................................................................................................... 8-28 查看或复归能量表计信息 ................................................................................................. 8-28 能量表计更新和存储 ......................................................................................................... 8-28 最大/最小表计 ........................................................................................................................... 8-28 查看或复归最大/最小表计信息 ........................................................................................ 8-28 最大/最小表计更新和存储 ................................................................................................ 8-29

表格

Table 8.1: 断路器维护信息举例 ........................................................................................................... 8-1 Table 8.2: 断路器监视整定值和整定范围 ........................................................................................... 8-4 Table 8.3: 需求量表计整定值和整定范围 ......................................................................................... 8-24

图形

Figure 8.1: 断路器举例维修点绘制 ...................................................................................................... 8-3 Figure 8.2: SEL-311C继电器举例断路器维护曲线 ............................................................................. 8-5 Figure 8.3: SELOGIC控制方程断路器监视启动整定值的动作行为 ................................................... 8-6