Sulfur hexafluoride electrical equipment insulation fault monitoring method, device and equipment
A technology of sulfur hexafluoride gas and electrical equipment, which is applied in the direction of testing dielectric strength, etc., can solve the problems of inability to determine whether there is an insulation fault in the equipment, and the inability to comprehensively monitor the operation status of sulfur hexafluoride electrical equipment, etc., to prevent equipment damage effect
Active Publication Date: 2017-03-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0005] The present invention aims to provide a method, device and equipment for monitoring insulation faults of sulfur hexafluoride electrical equipment, so as to at least solve the problems in the related art only by detecting H 2 S and SO 2 It is impossible to comprehensively monitor the operation status of sulfur hexafluoride electrical equipment, and it is impossible to determine whether there is an insulation fault in the equipment
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[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.
[0028] Based on the related art only by detecting H 2 S and SO 2 The gas content of the sulfur hexafluoride electrical equipment cannot be comprehensively monitored for operating conditions, and it is impossible to determine whether there is an insulation fault in the equipment. The embodiment of the present invention provides a method for monitoring the insulation fault of sulfur hexafluoride electrical equipment. The process flow of the method Such as figure 1 As shown, including step S102 to step S106:
[0029] Step S102, monitoring the content of impurity gas generated in the sulfur hexafluoride electrical equipment, wherein the impurity gas is a gas generated during the operation of the sulfur hexafluoride electrical equipment that affects the purity of the sulfur hexafluoride gas;
[0030] Step S104, judging whether the amou...
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The present invention discloses a sulfur hexafluoride electrical equipment insulating fault monitoring method, a sulfur hexafluoride electrical equipment insulating fault monitoring apparatus, and a sulfur hexafluoride electrical equipment insulating fault monitoring device. The method comprises the steps of monitoring the content of an impurity gas generated in a sulfur hexafluoride electrical device, wherein the impurity gas is a gas influencing the purity of a sulfur hexafluoride gas and generated in the operation of the sulfur hexafluoride electrical device; determining whether the variable quantity of the content of the impurity gas within a predetermined time quantum exceeds a preset variable quantity; if yes, determining that an insulating fault exists in the sulfur hexafluoride electrical device. By the present invention, the problems that the content of the H2S and SO2 gases are only detected in a correlated technology, so that the operation status of the sulfur hexafluoride electrical device can not be monitored comprehensively, and the insulating fault can not be determined whether to exist in the device, are solved, the existence of the insulating fault can be judged effectively, and the device can be prevented from being damaged.
Description
technical field [0001] The invention relates to the field of electrical monitoring, and more specifically, to a method, device and equipment for monitoring insulation faults of sulfur hexafluoride electrical equipment. Background technique [0002] Sulfur hexafluoride gas-insulated equipment is widely used in power grids with a voltage level of 110kV and above in my country, especially gas-insulated switches and gas-insulated transformers. The operating status of sulfur hexafluoride electrical equipment plays an important role in the safe and stable operation of the power grid. decisive role. With the increase of voltage level and system capacity, the installation and consumption of sulfur hexafluoride electrical equipment in the power grid is increasing rapidly, and the probability of internal insulation failure of equipment tends to increase. Equipment defects and their status judgment are one of the key problems to be solved urgently. [0003] Under normal operating condi...
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IPC IPC(8): G01R31/12
Inventor 赵宇彤石磊段大鹏王秋鹏蔡宏伟
Owner STATE GRID CORP OF CHINA