Mounting and fixing device of GIS basin-type insulator ultrahigh frequency sensor and extremely simple dismounting and mounting method of mounting and fixing device

Abstract

The invention discloses a mounting and fixing device of a GIS basin-type insulator ultrahigh frequency sensor. The device comprises a fixing support and two fixing ropes, the fixing support comprisesa support body, a rope lock catch, a cover plate and a fixing bolt, the support body is of a cuboid structure, a triangular groove is formed in the middle of the upper end face of the support body, and a semicircular groove is longitudinally formed in the groove bottom of the triangular groove; the rope lock catch is embedded in the semicircular groove in a front-back moving mode. The cover plateis fixed to the upper end face of the support body through countersunk head screws. And the fixing bolt is screwed into the rope lock catch position adjusting threaded hole. The mounting and fixing device is few in parts and simple in structure, the sensor can be adjusted to be tightly attached to the surface of the GIS basin-type insulator by adjusting the position of the rope lock catch in the semicircular groove, and the measurement precision is guaranteed. The invention further discloses an extremely simple disassembling and assembling method of the GIS basin-type insulator ultrahigh frequency sensor.

Description

technical field [0001] The invention relates to an installation and fixing device of a GIS basin-type insulator ultra-high frequency sensor and a minimalist disassembly method thereof. Background technique [0002] With the gradual expansion of the scope of GIS applications, many equipment manufacturers have gradually lowered the threshold for production technology, so the probability of failure has also increased. Due to many reasons such as manufacturing, transportation, on-site assembly, and live operation, various defects are caused. Due to these reasons, the local electric field of GIS is distorted and affects its long-term reliability. Therefore, partial discharge detection can be used to characterize whether there are latent defects inside GIS equipment. parameter. The basic principle of partial discharge UHF (Ultra-High-Frequency, UHF) detection method is to use UHF sensors to detect UHF electromagnetic wave signals generated during partial discharge in power equipm...

AI Technical Summary

Problems solved by technology

When UHF partial discharge detection is carried out on GIS, the on-site inspection personnel often use hand-held cooperation or use binding straps to fix it. The above two fixing methods are time-consuming and labor-intensive, and there are UHF sensors in the basin of GIS equipment. Insufficient contact affects test accuracy

In addition, for GIS with different voltage levels, the radius of the pot insulator and the distance between the fastening bolts are also different, and the structure of the installation device of the UHF sensor will also change.

Images