| 剩余电流式电气火灾监控探测器分类 |
| 添加时间:2017/9/21 14:56:18 浏览次数: |
1、非独立式探测器
1 、 non independent detectors
能探测剩余电流,并在该剩余电流达到设定值时输出一个报警信号(电信号或机械信号)。它必须与监控设备连用。
The residual current can be detected and an alarm signal (electrical or mechanical signal) is output when the residual current reaches a set point. It must be used with monitoring equipment.
最简单的非独立式探测器仅由一个剩余电流互感器、一个微功率继电器(如干簧管)组成。较完善的非独立式探测器具有报警电流设定、地址编码等功能,以集中方式供电。
The simplest non independent detector consists of only one residual current transformer and one micro power relay (such as a reed tube). The perfect non independent detector has the functions of alarm current setting and address coding, and power supply in centralized mode.
由于没有声光报警,在现场不易及时发现是哪一路线路发生接地故障,使它的应用受到一定的限制。
Because there is no sound and light alarm, it is difficult to find in the field where the road fault occurs, which limits its application.
2、独立式探测器
2 、 independent detector
能探测剩余电流,并在该剩余电流达到设定值时发出一定强度的声报警和光报警信号,并予以保持,直至手动复位;还应有工作状态指示灯和自检功能。它可以单独使用。
Can detect the residual current, and reaches the set value in the residual current during a certain intensity of sound and light alarm alarm signal, and maintained until the manual reset; there should be a working state indicator and self checking function. It can be used alone.
较完善的独立式探测器具有报警电流设定、剩余电流电平显示(电流数值或设定值百分比)、报警信号输出(电信号或机械触点信号)、脱扣信号输出(控制断路器的脱扣器动作的机械触点信号)、脱扣输出延时设定。
Independent type detector more perfect with the current alarm setting, residual current level display (current value or setting percentage), the alarm signal output (electrical or mechanical contact signal), tripping signal output (mechanical contact signal release action control circuit breaker tripping delay set, the output).
一般来说,独立式探测器以现场220Vac方式供电,以便单独使用。如果采用集中24V方式供电,意味着必须要接到监控系统中,除非专门为它配一个降压整流器。
In general, stand-alone detectors are powered in live 220Vac mode for stand-alone use. If centralized 24V mode is used, it means that the system must be connected to the monitoring system unless it is specifically equipped with a step-down rectifier.
为连接到监控系统中,可以外接一个地址编码/收发器。许多型号的独立式探测器已把地址编码/收发器集成在内。
To connect to the monitoring system, an address code / transceiver can be externally connected. Many model independent detectors have integrated address codes / transceivers. |
| 上一页 电气火灾探测器类型及工作原理 |
| 下一页 烟感探测器的维护保养 |
Copyright © 技术支持:遨游网络