GIS partial discharge ultrasonic and ultrahigh-frequency detection sensor fixation device

Abstract

The invention discloses a GIS partial discharge ultrasonic and ultrahigh-frequency detection sensor fixation device, which comprises a clamp slot for fixing a sensor and a multi-stage telescopic insulation rod. A baffle plate at one end of the clamp slot is provided with a through hole, and a threaded rod passes through the through hole and is connected with the clamp slot; a baffle plate at the other end of the clamp slot is provided with a threaded connector; the top end of the telescopic insulation rod is fixedly connected with a universal joint; the upper portion of the universal joint is connected with a bolt matched with the clamp slot threaded connector; and the clamp slot is connected with the telescopic insulation rod through the bolt arranged on the universal joint. The fixation device is simple in structure, convenient to operate, good in stability, high in reliability and convenient to fix and disassemble. Through the fixation device, workers can easily send the sensor to a specific test point without working at high place or passing through and climbing devices, so that labor intensity of the workers can be reduced effectively, work efficiency is improved, and personal safety can be ensured effectively.

Description

technical field [0001] The invention relates to a fixing device of an ultrasonic sensor, in particular to a fixing device of a GIS partial discharge ultrasonic and UHF detection sensor, which is used for supporting and fixing the sensor and is an auxiliary tool for GIS partial discharge ultrasonic detection. Background technique [0002] GIS is the English abbreviation of Gas Insulated Totally Enclosed Combined Electrical Appliance, which is an important equipment in the power system. Insulation faults inside GIS are often manifested in the form of partial discharge in the early stage. If they are not discovered in time and measures are taken, serious insulation accidents will occur. [0003] At present, the ultrasonic method and UHF method are the most effective means to detect GIS partial discharge. The ultrasonic sensor and UHF sensor of the GIS partial discharge detector are installed on the surface of the GIS shell to collect mechanical vibration signals and electromagn...

AI Technical Summary

Problems solved by technology

However, most of the GIS is located more than 2 meters above the ground. When installing ultrasonic sensors and UHF sensors, the staff need to use ladders to climb up and work, and lift the sensors with their hands to stick them to the surface of the GIS. The labor intensity is high and the work at heights High risk; In addition, GIS equipment has a large number of flanges and casings, the space is small, and the test point is very hidden. The staff need to drill and climb equipment to reach the test point, which is time-consuming and labor-intensive, and it is not easy to detect accurately

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