190S-ANEJ2-CB63D-KN-R11-S20

190S-ANEJ2-CB63D-KN-R11-S20

190S-ANEJ2-CB63D-KN-R11-S20

190S-ANEJ2-CB63D-KN-R11-S20

剩余电流测量是根据基尔霍夫电流定律：在同一时刻，电路中流入和流出一个节点的电流矢量和为零。以TN-S系统为例，将A/B/C/N同时穿过剩《联系人；欧先生》
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余电流互感器，当系统未发生漏电时，流入和流出剩余电流互感器的电流矢量和为零，此时，剩余电流互感器感应出的二次电流也为0;当某相对大地发生漏电，此时流入和流出剩余电流互感器的电流矢量和不再为零，其大小等于从大地流走的电流即漏电流。此漏电信号通过剩余电流互感器的二次接线传输至电气火灾探测器，经运算放大、A/D转换后送入CPU，经过一系列算法后，对变化的幅值进行分析、判断，并与报警设定值进行比较，若超出定值则发出声光报警信号并上送至后台电气火灾监控设备。

温度测量采用温度传感器，一般采用Pt100传感器进行测量。该种类型的温度传感器测温稳定、量程范围大，适合在现场监测线缆温度和环境温度使用。当温度发生变化时，Pt100自身阻值发生同比例变化，将该电阻信号传输到电气火灾探测器，经过一系列信号转化和运算后，将 终结果同温度报警定值进行比较，若超出定值则发出声光报警信号并上送至后台电气火灾监控设备。

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