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实用新型
CN203858325U 一种适用于陡波侵入GIS绝缘状态在线监测诊断装置 失效 - 放弃

一种适用于陡波侵入GIS绝缘状态在线监测诊断装置
摘要：
本实用新型涉及一种适用于陡波侵入GIS绝缘状态在线监测诊断装置，包括超声波传感器、供电单元、前置放大器，窄带电流传感器、宽带高频电流传感器、浪涌保护器和信号处理系统；所述窄带电流传感器和宽带高频电流传感器穿套在GIS设备接地线上，用于接收接地电流信号，并将接地电流信号转换为电压信号，电压信号通过陡波过电压侵入保护后端处理器的浪涌保护器输出至信号处理系统；所述信号处理系统包括控制与处理单元、信号调理单元、信号预处理单元、模数转换单元和显示单元。本实用新型采用声电联合方式在线监测陡波电压侵入GIS类设备绝缘状态，实时监测GIS类设备绝缘损伤，对提高电力系统运行的安全性和可靠性具有重用意义。
摘要（英）：

The utility model relates to a GIS insulation state on-line monitoring and diagnostic device suitable for steep wave intrusion. The device comprises an ultrasonic sensor, a power supply unit, a preamplifier, a narrowband current sensor, a broadband high-frequency current sensor, a surge protector and a signal processing system. The narrowband current sensor and the broadband high-frequency current sensor are worn on a GIS equipment grounding wire and used for receiving a grounding current signal and converting the grounding current signal into a voltage signal. The voltage signal is outputted to the signal processing system via the surge protector of a steep wave overvoltage intrusion protection rear-end processor. The signal processing system comprises a control and processing unit, a signal conditioning unit, a signal preprocessing unit, an analog-to-digital conversion unit and a display unit. The steep wave voltage intrusion GIS class equipment insulation state is monitored online by adopting an acousto-electric combination mode so that GIS class equipment insulation damage is monitored in real time, and thus the device is significant for safety and reliability of operation of an electric power system.

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