Insulator leakage current collecting ring and insulator leakage current collecting device

Abstract

The invention provides an insulator leakage current collecting ring, which comprises a fixed clamp ring, a current collecting coil, a contact metal sheet, an electric conduction screw and a positioning screw, wherein the upper surface of the fixed clamp ring is provided with a coil mounting slot; the side face of the fixed clamp ring is provided with a mounting connector for opening or locking the fixed clamp ring; the current collecting coil is arranged in the coil mounting slot of the fixed clamp ring; the contact metal sheet is arranged below the fixed clamp ring; the electric conduction screw penetrates the fixed clamp ring from top to bottom to connect the current collecting coil with the contact metal sheet; and the positioning screw penetrates the fixed clamp ring from outside to inside. The insulator leakage current collecting ring provided by the invention has a particular open-loop design, and can be conveniently arranged on the surfaces of post insulators and suspension insulators with various different types to collect the leakage current of the surfaces of the insulators. The invention also provides an insulator leakage current collecting device. The insulator leakage current collecting ring and the insulator leakage current collecting device have the advantages of accuracy in measurement, convenience and fastness in installation and high anti-interference capacity.

Description

technical field [0001] The invention relates to the technical field of on-line monitoring of electric power equipment, in particular to an insulator leakage current collection ring and an insulator leakage current collection device. Background technique [0002] The leakage current on the surface of power system substation insulators and high-voltage line insulators is a reflection of the comprehensive effects of insulator surface pollution, voltage and climate. Real-time monitoring of leakage current can reflect the pollution status of insulators in operation and the accumulation process of pollution, and provide basic data for power system anti-pollution monitoring. [0003] Accurately obtaining the leakage current is the key technology of pollution monitoring. The traditional leakage current monitoring method generally inserts a sampling resistor or a microammeter in series with the grounding lead of the substation post insulator, or adds a current sensor to the grounding...

AI Technical Summary

Problems solved by technology

However, under normal circumstances, the grounding wire of the equipment is not easy to disassemble, and the line insulators are not allowed to increase the number of insulators arbitrarily, so there are difficulties in the installation of leakage current monitoring and collection devices

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