Low-capacity sample dielectric loss testing tool and using method thereof

Abstract

The invention relates to a low-capacity sample dielectric loss testing tool and a using method thereof. The low-capacity sample dielectric loss testing tool comprises overhead wiring pincers and is characterized in that the end portion of the overhead wiring pincers is in a flat shape, is hinged by a bolt to a horizontal support bar, and is locked tightly by a nut; the central line of the bolt is vertical to a horizontal plane; the back of the body of the overhead wiring pincers is provided with a hook for being connected to a high-voltage lead; the end portion of the hook is provided with external threads, is screwed into the body of the overhead wiring pincers, and is locked tightly; the other end of the horizontal support bar is supported on a horizontal table top; a support seat is disposed on the center of the horizontal table top; the end portion of the horizontal support bar passes through a through hole on the support seat and then is locked tightly by a nut; one end, far away from the overhead wiring pincers, of the horizontal table top is provided with a slideway vertical to the length direction of the horizontal support bar; a slide block is disposed in the slideway; and a wire support roller is supported on the top of the slide block. The low-capacity sample dielectric loss testing tool is easy to operate, reliable to use, and accurate in testing, and solves a problem fundamentally that a conventional testing tool is low in efficiency and influences testing accuracy in a testing process.

Description

technical field [0001] The invention relates to a tool for testing the dielectric loss of high-voltage power equipment, in particular to a tool for testing the dielectric loss of a small-capacity test product above 66kV and its use method, which is suitable for bushings, current transformers, CTs, and the like. Background technique [0002] Under the action of AC voltage on the insulating medium, part of the electric energy in the dielectric will be converted into heat energy. This part of the energy is called dielectric loss, and the dielectric loss factor is generally expressed by the tangent value tgθ. The purpose and significance of the dielectric loss factor test are: first, it can more sensitively detect the overall dampness, aging, oil quality deterioration and local defects of the insulation of small and medium-sized capacitance electrical equipment; second, it can very sensitively detect the quality of the insulating oil Third, for large-capacity electrical equipmen...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a dielectric loss testing tool for a small-capacity test product that is easy to operate, reliable in use, and accurate in testing and its use method, fundamentally solving the time-consuming and labor-intensive testing process of existing testing tools that affect testing. problem of accuracy

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