Microscopic positioning device for sectioning electrical dendrites inside insulating materials

Abstract

A microscopic positioning device for an electric tree branch slice inside an insulating material comprises a fixed end, a moving end disposed opposite to the fixed end, an observation module and a cutting module disposed on the moving end, wherein a electric tree sample is set at the fixed end, and the observation module is facing the position of the cutting module and the electric tree sample. Atwo-dimensional mobile platform in the device can cooperate with a microscope to accurately move a cutter to a position directly above an electric tree branch to be cut, while observing, a shallow groove is cut in the sample at the position of the electric tree branch by use of the cutter, the positioning of the electric tree branch slice is simplified, and the electricity of the positioning of the electric tree branch slice is improved.

Description

technical field [0001] The invention relates to a technology in the field of solid insulating material testing, in particular to a micro-positioning device for slicing electrical tree branches inside insulating materials. Background technique [0002] The electrical tree problem in the cable insulation material is one of the important factors leading to the failure and breakdown of the cable insulation. In order to study the law of initiation and growth of electrical tree in cable insulation, and then improve the performance of cable insulation materials, it is generally necessary to observe the section of the cable insulation layer sample containing the electrical tree. The basic process is: first mark the position of the electrical branch in the sample with a marker pen under the microscope, then use a knife to cut a shallow knife mark on the surface of the insulating sample, and finally brittle at low temperature, so that the electrical branch sample is in the knife. How...

AI Technical Summary

Problems solved by technology

In order to study the initiation and growth of electrical tree branches in cable insulation, and then improve the performance of cable insulation materials, it is generally necessary to observe the section of the cable insulation layer sample containing electrical tree branches. The basic process is: first mark the position of the electrical tree branches in the sample with a marker pen under the microscope, then cut a shallow knife mark on the surface of the insulating sample with a knife, and finally brittle at low temperature, so that the electrical tree branches are broken on the knife surface. However, in actual operation, this method has problems such as complicated electric tree location operation and low efficiency.

Images