Test system for measuring insulator surface field intensity distribution

Abstract

The invention discloses a test system for measuring insulator surface field intensity distribution. Transparent epoxy resin, glass, transparent rubber or other insulator materials doped with electroluminescent powder are used for manufacturing the insulator. A voltage regulator and a power frequency high-voltage test transformer are used for pressurizing theinsulator in a high-voltage air chamberor an oil tank through a protective resistor and a high-voltage sleeve; a ground electrode and a high-voltage electrode are arranged in thehigh-voltage air chamber or theoil tank according to the actual working condition of the insulator, after high voltage is applied, the insulator emits light, a camera is used for shooting the light emitting phenomenon of the insulator through an observation window of the high-voltage air chamber or the oil tank, and therefore distribution of the field intensity on the surface of the insulator is reversely deduced. The system does not need to arrange an electric field probe near the insulator, eliminates the distortion of the electric field probe to the surface field intensity of the insulator, and can better reflect the real condition of the surface field intensity distribution of the insulator.

Description

technical field [0001] The invention relates to an insulator test system, in particular to a test system for measuring the field intensity distribution on the surface of an insulator. Background technique [0002] An insulator is a device that is installed between different potentials and can withstand voltage and mechanical stress. It is widely used in the power grid and is one of the indispensable and important components in the power grid. In order to improve the electrical performance of insulators and reduce the surface field strength of insulators, simulation methods are usually used to optimize the structure of insulators, but the correctness of simulation and the effectiveness of structural optimization are difficult to verify experimentally. At present, the effectiveness of structural optimization is usually judged by measuring the flashover voltage of the insulator, and the validity of the simulation is judged by using the electric field probe to measure the field ...

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Problems solved by technology

[0003] In view of the fact that the above-mentioned existing insulator surface field strength measurement method can no longer meet the current situation of accurately measuring the insulator surface electric field, the present invention proposes a test system that does not need an electric field probe and can measure the insulator surface field strength distribution

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