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发明公开
CN107884691A 一种SF6气体绝缘开关设备内部绝缘故障诊断装置及方法 审中-实审

一种SF6气体绝缘开关设备内部绝缘故障诊断装置及方法
摘要：
本发明提供一种SF6气体绝缘开关设备内部绝缘故障诊断装置及方法。气体检测管对SF6气体绝缘开关设备运行过程中分解产生的SO2和HF进行检测并校正电化学传感器中SO2、HF气体组分检测结果；电化学传感器检测出SF6气体绝缘开关设备运行过程中分解产生的SO2、H2S、CO和HF气体组分含量；气相色谱仪对SF6气体绝缘开关设备运行过程中分解产生的CF4、SF6、SO2F2、SOF2、H2O、S2F10以及S2OF10的浓度进行标定；气相质谱仪修正气相色谱仪标定的浓度；计算机根据气相质谱仪修正的浓度进行SF6气体绝缘开关设备内部绝缘故障诊断；由于故障设备运行中不同故障类型产生的SF6分解产物不同，因此使用由气体检测管、电化学传感器、气相色谱仪和气相质谱仪组成的检测装置进行定性及定量检测。
摘要（英）：

The invention provides an insulation fault diagnosis apparatus and method inside a SF6 gas insulation switch device. A gas detection pipe detects SO2 and HF that are generated from decomposition in the operation process of a SF6 gas insulation switch device and corrects the detection result of SO2 and HF gas components in an electromechanical sensor. The electromechanical sensor detects the contents of SO2, H2S, CO and HF gas components that are generated from the decomposition in the operation process of the SF6 gas insulation switch device. A gas chromatograph calibrates the concentration ofCF4, SF6, SO2F2, SOF2, H2O, S2F10, and S2OF10 that are generated from the decomposition in the operation process of the SF6 gas insulation switch device. The gas chromatograph modifies the concentration that is calibrated by a gas chromatography mass spectrometry. A computer carries out fault diagnosis on the internal of the SF6 gas insulation switch device based on the concentration that is modified by the gas chromatography mass spectrometry. Since different fault types in the operation of a faulty device may generate different SF6 decomposition products, the apparatus herein that is composed of the gas detection pipe, the electromechanical sensor, the gas chromatograph and the gas chromatography mass spectrometry is adopted to carry out qualitative and quantitative detection.

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