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Post insulator detection device and method based on Fabry-Perot interference principle

A technology of pillar insulator and detection device, which is applied in the direction of measurement device, electric measurement, short circuit test, etc., can solve the problems of high manufacturing and maintenance cost, large volume, easy to be disturbed by the external environment, etc. Small, Guaranteed Accuracy and High Sensitivity Results

Active Publication Date: 2021-12-24
XIAN UNIV OF TECH
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Problems solved by technology

[0004] Aiming at the technical problems of conventional detection methods for insulators, which are susceptible to external environment interference, high manufacturing and maintenance costs, and large volume, the present invention provides a post insulator detection device and method based on the principle of Fabry-Perot interference. Simple, low cost, small size, real-time detection of insulator leakage current in various environments

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  • Post insulator detection device and method based on Fabry-Perot interference principle

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0035] The invention discloses a post insulator detection device based on the principle of Fabry-Perot interference. figure 1 , 2 , including a first packaging box 16, a sampler 3, an F-P fiber optic current sensor 4, wires and a post-processing module.

[0036] The sampler 3 includes a sampling shell and a sampling resistor. The sampling resistor is installed inside the sampling shell. The sampling shell is made of a conductive metal material. The sampling shell is to electrostatically shield the sampling resistor. In this embodiment, the sampler 3 is a cuboid with a length of The diameter is 60mm, the width is 40mm, the height is 25mm, the wall thickness is 3mm, and it is made of stainless steel; the resistance value of the sampling resistor is 2K ohms. The sampling shell can electrostati...

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Abstract

The invention belongs to the technical field of current detection and relates to a post insulator detection device and method based on the Fabry-Perot interference principle. The device comprises a first packaging box, a sampler, an F-P optical fiber current sensor, a wire and a post-processing module. According to the post insulator detection device, the interference of the external environment to the detection device can be reduced, and the detection precision of the detection device is improved. The structure of thedetection device is simple, so that the equipment cost and the maintenance cost can be reduced, the protection on operators is improved, and the use is convenient. The invention further discloses a post insulator detection method based on the Fabry-Perot interference principle, the leakage current of a post insulator can be accurately measured and monitored, and therefore the deterioration state of the post insulator can be evaluated, and an operator can be helped to conduct detection and maintenance.

Description

technical field [0001] The invention relates to the field of current detection technology, in particular to a post insulator detection device and method based on the Fabry-Perot interference principle. Background technique [0002] The post insulator installed in the substation is mainly used for insulation and mechanical fixed connection between the conductor and the grounding body, preventing the current from returning to the ground, and playing a good electrical insulation effect and supporting role. However, due to long-term exposure to high-voltage electric field, sun and rain, dirt, mechanical stress, etc., post insulators are very likely to suffer from failures such as cracking, reduced impedance performance, and pollution flashover, which will not only cause damage to electrical equipment in substations, but may even Casualties occurred during the inspection and maintenance process, which endangered the safety of life and seriously affected the safe and stable operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/52G01R31/12G01R19/25G01R15/24
CPCG01R31/52G01R31/1245G01R19/25G01R15/24
Inventor 张嘉伟叶子帆王力王倩王闯秦司晨
Owner XIAN UNIV OF TECH
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