GIS partial discharge live test device

A live test and partial discharge technology, used in measuring devices, circuit breaker testing, and dielectric strength testing, etc., can solve problems such as low test efficiency, reduce the risk of dielectric strength drop, reduce escape, and facilitate reception. Effect

Pending Publication Date: 2021-12-31
GUANGDONG POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a GIS partial discharge live test device, which is used t

Method used

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  • GIS partial discharge live test device
  • GIS partial discharge live test device

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Example Embodiment

[0023] At present, when the GIS bureau is discharged, the metal sheet mounted in the GIS basin insulator is closed, and then the tester hand-held sensor is placed on the pouring hole of the basin insulator, by detecting the pouring hole position The radiated electromagnetic wave signal is tested on the partial discharge signal of the GIS device, not the exclusive sensor fixed interface. After the test is completed, the handheld sensor is removed, and the screw is repeatedly fastened to the mounting of the metal sheet to block the pouring port. The shortcomings of prior art are as follows:

[0024] 1) When testing, use the handheld sensor to be placed at the casting port, lacking a dedicated sensor interface. The casting holes during the manufacturing process of the basin insulator are substantially rounded rectangular, with a length of 45-55 mm, and a width of 15-25 mm.

[0025] 2) Metal sheets typically enclose the casting holes in a fastening bolt, and multiple disassembly in a ...

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Abstract

The invention discloses a GIS partial discharge live test device, and relates to the technical field of GIS discharge test. The device can fix a test box body on a to-be-tested GIS insulator through a fixing assembly, so that a worker does not need to hold a sensor by hand for testing, and meanwhile, an epoxy resin plate is correspondingly attached to the pouring hole of the to-be-tested GIS insulator, the sensor interface is arranged corresponding to the position of the pouring hole, and the input port of the sensor is matched with the structure of the sensor interface, so that the ultrahigh frequency sensor can be ensured to be tightly attached to the pouring hole, the dissipation of electromagnetic waves in the GIS during outward radiation is reduced, the ultrahigh frequency sensor can receive all signals conveniently, the test accuracy is improved, and the test efficiency is also improved; and the epoxy resin plate is adopted, so that the risk that the insulating strength of the basin-type insulator is reduced is reduced.

Description

Technical field [0001] The present invention relates to the field of GIS discharge testing, and more particularly to a GIS partial discharge electrical test device. Background technique [0002] At present, gas insulating combination electrical (GIS) relies widely in the power system in the power system. In the complex environment of high temperature and high pressure in the power system, or in the manufacturing, transportation and assembly process of GIS, it will inevitably produce some safety hazards, such as dust, conductive particles, metal tips, air gap, etc., will lead to various forms. Partial discharge. Partial discharge does not immediately lead to the overall breakdown of the insulation, but its harm is extremely serious, once partial discharge occurs in the medium, it will eventually result in the failure of the insulation system. When a local discharge occurs inside the GIS device, the frequency range of 300 MHz or more is released. The metal coaxial structure of the ...

Claims

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Application Information

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IPC IPC(8): G01R31/327G01R31/12
CPCG01R31/3272G01R31/3275G01R31/1254
Inventor 李新海陈昱王伟平梁国坚梁丽丽冯宝陈权张志强杨劲松刘均裕邓光昱梁智康张宾产启中周雪东何炳锋温焯飞吴棉廷黄文彬楚佳雨
Owner GUANGDONG POWER GRID CO LTD
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