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公开(公告)号：EP4145483A1
公开(公告)日：2023-03-08
申请号：EP21795740.6
申请日：2021-02-09
发明人： JIN, Haiyong , XIA, Tiexin , GUO, Zhengcao , HAO, Caixia , JIN, Haisheng
摘要： The present application provides a self-diagnostic gas density relay and a use method thereof, the gas density relay includes a gas density relay body, a gas density detection sensor, at least one diagnostic sensor, and an intelligent control unit; where the diagnostic sensor is configured to acquire deformation quantities of components that generate deformations, and/or positions or displacement quantities of components that generate displacements when the pressure changes, or the temperature changes, or the gas density changes in the gas density relay body; and the intelligent control unit is respectively connected with the gas density detection sensor and the diagnostic sensor, receives data acquired by the gas density detection sensor and/or the diagnostic sensor, and diagnoses a current working state of the gas density relay body. The present application is used for monitoring a gas density of the gas-insulated or arc-extinguished electrical equipment, and at the same time, on-line self-inspection for the gas density relay is completed, so that efficiency is increased, no maintenance is realized, operation and maintenance costs are greatly reduced, and safe operation of a power grid is guaranteed.
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2.发明公开
公开(公告)号：EP4027154A1
公开(公告)日：2022-07-13
申请号：EP20861073.3
申请日：2020-08-26
发明人： XIA, Tiexin , HE, Bing , CHANG, Min , GUO, Zhengcao , LIAO, Haiming , JIN, Haiyong , WANG, Enlin
IPC分类号： G01R31/327 , G01N9/00 , H01H35/26
摘要： The application provides an electrical system with online sampling and check function and its check method for high-voltage and medium-voltage electrical equipment, including electrical equipment, gas density relay, gas density sensor, valve, pressure regulating mechanism, online check contact signal sampling unit and intelligent control unit. The pressure is increased or decreased by the pressure regulating mechanism to enable the contact action of the gas density relay of electrical equipment. The contact action is transmitted to the intelligent control unit through the online check contact signal sampling unit. The intelligent control unit detects the alarm and/or blocking contact signal operating value and/or return value according to the density value of the contact action; the check of the gas density relay can be completed without maintenance personnel on site, which greatly improves the reliability of the power grid and the work efficiency, and reduces the O&M cost. At the same time, it also realizes the mutual self-inspection between gas density relay and gas density sensor, and further realizes the maintenance-free.
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