SF6户外环网柜多参数检测系统研究与开发

Study and Development of Multi-parameter Detection System for SF6 Outdoor Ring Main Unit

为维护户外环网柜的安全运行,设计了一种SF6户外环网柜多参数检测装置。运用该装置分别对SF6环网柜内电缆局部放电、SF6气体泄漏和柜内环境温度进行检测。给出了仪表设计的硬件结构与软件运行流程图,并应用BP神经网络对电缆局部放电进行故障识别。该装置可同时在工作现场与后台对环网柜进行监测。试验结果表明,该装置具有较强的抗干扰能力,应用前景广泛。

To protect the outdoor ring main units running safely, the multi-parameter detection device has been designed for SF6 outdoor ring main unit. By adopting this device, the partial discharge of cable inside the unit, the leakage of SF6 gas, and environment temperature inside unit are detected. The hardware structure and software operating flowchart of the design are given. By adopting BP neural network, the fault recognition for cable partial discharge is conducted. The device can monitor the ring main unit both in operating site and background. The multiple tests verify that the device features higher anti-interference capability, and possesses broad applicable prospects.