State Grid Shanxi Electric Power Research Institute

Hua Yu

Hong Liu

Guodong Li

Zhumao Lu

Guangqi Mu

Hai Zhang

Hui Yuan

Shuai Wang

Xuan Wang

Jichong Liang

Shan Lu

Jin Zhao

Qingsong Chen

Haipeng Wang

Shuai Li

Shengzhi Chang

Min Jiang

Tao Jin

Xinwei Wang

Like Dong

Jinsong Li

Yansong Li

Wei Wang

Lu Bai

Aimin Wang

Yanchun Li

Disclosed are a defect monitoring apparatus and detection method for a transformer oil conservator based on edge computing. The monitoring apparatus includes: a sensing terminal, an edge intelligent gateway, a monitoring terminal, an oil conservator defect monitoring cloud platform, and a client terminal. The edge intelligent gateway and the monitoring terminal are both disposed in a substation. The monitoring terminal is configured to access the edge intelligent gateway. The sensing terminal includes: an airflow sensor, an oil temperature sensor, an ambient temperature sensor, and a microwave oil level measurement assembly. The sensing terminal sends detection data information to the edge intelligent gateway, and the edge intelligent gateway stores and determines a category of the detection data information. The present disclosure can recognize capsule damage, partial blockage of a breathing circuit, leakage in the breathing circuit, moisture impurities in a breathing tube, and false oil level.

Defect monitoring apparatus and detection method for transformer oil conservator based on edge computing

A device and method for evaluating long-term operation of a transformer oil pump. An inlet of an oil pump is connected to an outlet of an oil tank through an oil pipe, and an outlet of the oil pump is connected to an inlet of the oil tank through an oil pipe. A pressure gauge is provided on the oil pipe to the inlet and the outlet of the oil pump, respectively. An ultra-high-frequency (UHF) sensor is provided on an inner wall of an oil pipe close to the oil pump. A pressure difference between the oil pipes to the inlet and to the outlet of the oil pump is monitored. A three-phase unbalanced current of a stator winding is monitored. The vibration of the oil pump is monitored. The rotor-to-stator rub is monitored. Based on the above inspection, a long-term health status of the oil pump is determined.

Method and device for evaluating long-term operation of transformer oil pump

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Shanxi, China

Hua Yu