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

申请人： Shanghai Roye Electrical Co., Ltd

发明人： JIN, Haiyong ,  XIA, Tiexin ,  GUO, Zhengcao ,  HAO, Caixia ,  JIN, Haisheng

IPC分类号： H01H35/26 ,  H01H35/32 ,  G01N9/00

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.