Wuxi Power Supply Branch of State Grid Jiangsu Electric Power Co., Ltd.

Jiefeng Wan

Junfeng Wu

Yin Gu

Ping Chen

Zhaoyun Leng

Jin Miao

Xi Wu

Haiping Shen

Bin Fei

Xinyang Zhou

Fen Huang

A partial discharge (PD) detection apparatus for gas-insulated equipment includes a photon collector, an optical splitter, a first photoelectric conversion module, an ultraviolet fluorescent crystal, a second photoelectric conversion module, and a signal processing module, where the ultraviolet fluorescent crystal is configured to convert a second optical radiation signal into an optical radiation signal of an ultraviolet fluorescence band, and the signal processing module is configured to calculate first apparent intensity based on a first voltage signal output by the first photoelectric conversion module, calculate second apparent intensity based on a second voltage signal output by the second photoelectric conversion module, and determine discharge intensity of the optical radiation based on a ratio of the second apparent intensity to the first apparent intensity. Technical solutions of the present disclosure are not affected by an unknown distance between a discharge position and a detection point.

Partial discharge (PD) detection apparatus for gas-insulated equipment

Growing community of inventors

Jiangsu, China

Jiefeng Wan