Inductor for high-voltage cable oscillatory wave partial discharge test system of 30kV and below

Abstract

The invention belongs to the field of power transformation and the technical field of measurement and test and particularly relates to an inductor for a high-voltage cable oscillatory wave partial discharge test system of 30kV and below, a barrel is connected between an upper panel and a lower panel, an inductor is arranged in the barrel, and the upper panel and the lower panel are connected withelectrodes and thin copper sheets. The inductor is formed by adopting an insulating annular structure, the height is reduced and the size is reduced on the premise that the electrical performance is not affected; the anti-corona electrodes and the thin copper sheets are firmly connected, so corona generation is effectively inhibited; a PEK screw rod can effectively achieve an insulation supportingeffect so that insulation performance and mechanical performance of the PEK screw rod are enhanced; the novel inductance structure design of a 30KV cable oscillatory wave partial discharge test system is realized; cable oscillatory wave partial discharge detection has characteristics of high voltage, no partial discharge, small size, simple structure and convenience in operation, and is suitablefor popularization and application.

Description

technical field [0001] The invention belongs to the field of power transformation and the technical field of measurement and testing, and in particular relates to an inductance used in a partial discharge testing system for oscillating waves of high-voltage cables of 30kV and below. Background technique [0002] For general electronic equipment, a relative humidity of 30% to 80% is more appropriate, and when the relative humidity exceeds 80%, it will cause adverse effects on the electronic equipment. Moisture degrades insulation performance. Since moisture has a higher conductivity than dielectric substances, when the insulating material is damp, its insulating performance will be significantly reduced. In addition, humid and warm weather is very beneficial to the growth of mold. The growth and reproduction of mold on electronic equipment will not only cause short circuit or poor contact, but also cause damage to the structure of some insulating materials; reduced strength...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides an inductance for oscillating wave partial discharge test system of high-voltage cables of 30kV and below. Easy to generate discharge problems, realize high voltage, no partial discharge, and small size for cable oscillatory wave partial discharge detection

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