Partial discharge detector sensor

The utility model discloses a sensor of a partial discharge detector. The sensor comprises a probe and a handheld tube, the probe is a non-contact ultrasonic sensor, the tail end of the probe is connected with a gooseneck pipe, the other end of the gooseneck pipe is fixed on at least one telescopic pipe through a connector, the telescopic pipe is in sliding connection with the inner wall of the telescopic pipe or the handheld pipe through an outer wall track, and a collision bead is arranged on the outer wall, close to the bottom, of the telescopic pipe. A lower hole is formed in the pipe wall of the telescopic pipe above the collision bead, and an upper hole is formed in the outer wall, close to the top, of the telescopic pipe; the bottom of the handheld pipe is sealed, a cable penetrates out of the center of the handheld pipe, and the handheld pipe is provided with an upper hole and a lower hole close to the top and the bottom respectively. 本实用新型专利公开了一种局部放电检测仪传感器，包括探头和手握管；所述探头为非接触式超声波传感器，所述探头末端连接着鹅颈管，所述鹅颈管另