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发明公开
CN103412247A 一种环网柜局部放电监测系统 无效 - 撤回

一种环网柜局部放电监测系统
摘要：
本发明公开了一种环网柜局部放电监测系统，包括抽气管道、调节阀、压力传感器、气体采样单元、滤波放大单元、模数转换单元、温度传感器、信号分析单元、数据存储单元和显示单元，其中：所述抽气管道一端伸入环网柜内部，另一端连接所述气体采样单元；所述调节阀安装于所述抽气管道上；所述压力传感器安装于所述调节阀与气体采样单元之间的抽气管道上，且连接所述显示单元；所述滤波放大单元连接所述气体采样单元；所述模数转换单元连接所述滤波放大单元和温度传感器；所述信号分析单元分别连接所述模数转换单元、数据存储单元和显示单元。本发明能准确测量环网柜内部的臭氧值浓度以及温度值，实现对环网柜局部放电的监控。
摘要（英）：

The invention discloses a ring main unit partial discharge monitoring system which comprises a gas pumping pipeline, a regulating valve, a pressure sensor, a gas sampling unit, a filter amplifying unit, an analog-digital conversion unit, a temperature sensor, a signal analysis unit, a data storage unit and a display unit. One end of the gas pumping pipeline extends to the inner portion of a ring main unit and the other end of the gas pumping pipeline is connected with the gas sampling unit; the regulating valve is installed on the gas pumping pipeline; the pressure sensor is installed on the portion, between the regulating valve and the gas sampling unit, of the gas pumping pipeline and connected with the display unit; the filter amplifying unit is connected with the gas sampling unit; the analog-digital conversion unit is connected with the filter amplifying unit and the temperature sensor; the signal analysis unit is respectively connected with the analog-digital conversion unit, the data storage unit and the display unit. The ring main unit partial discharge monitoring system can accurately measure the concentration value of ozone and the temperature value inside the ring main unit and monitor partial discharge of the ring main unit.

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