Monitoring device for partial discharge of electrical equipment

Abstract

The invention discloses a monitoring device for partial discharge of electrical equipment, which comprises handheld monitoring equipment, and is characterized in that the handheld monitoring equipment comprises a first acquisition module, a first processing module, a first detection module, a first storage module, a display module, a handheld monitoring equipment shell and a handheld monitoring equipment handle; the first acquisition module comprises a plurality of first sound pressure sensors which are distributed in a three-dimensional array geometrical shape in a space and is used for acquiring ultrasonic waves; the first processing module is connected with the first acquisition module and is used for carrying out noise reduction and filtering on the acquired ultrasonic waves; the first detection module is connected with the first processing module; the first storage module is connected with the first detection module; and the display module is connected with the first storage module and is used for displaying the spatial geometric position of the discharge ultrasonic emission source. The device is flexible to use, can carry out patrol discharge monitoring on large-area and numerous electrical equipment, can cope with various electrical equipment with high-voltage discharge, is high in detection and positioning precision, saves the cost, and improves the working efficiency.

Description

technical field [0001] The invention relates to the technical field of partial discharge location of electric equipment, in particular to a monitoring device for partial discharge of electric equipment. Background technique [0002] Partial discharge refers to the local discharge or breakdown phenomenon in the insulating medium caused by uneven electric field distribution and excessive local electric field in the insulating structure. It may occur in solid insulating pores, liquid insulating bubbles or different dielectric properties It can also occur in liquid or solid insulation if the electric field strength is higher than a certain value that the medium has. Partial discharge gradually develops, and through continuous erosion of the surrounding insulating medium, it eventually leads to the failure of the entire insulation system. Therefore, partial discharge is the main cause of insulation degradation, and it is also an important symptom and manifestation of insulation d...

AI Technical Summary

Problems solved by technology

It can only monitor specific electrical equipment in a small area. For large-area equipment monitoring, the cost is high, and it cannot cope with changing environments.

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