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Ultrahigh-frequency sensor and local discharge detection device

A technology of ultra-high frequency sensor and face, applied in the direction of electromagnetic field characteristics, testing dielectric strength, etc., can solve the problems of inability to meet the spatial positioning of the discharge source, lack of omnidirectionality, and broadband, etc., to expand the working frequency band and increase the reception Direction and area, improve the effect of omnidirectional

Inactive Publication Date: 2014-12-31
STATE GRID CORP OF CHINA +2
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Problems solved by technology

In recent years, the idea of ​​UHF array spatial positioning has been proposed. Four UHF sensors are used to form a sensing array to realize the detection and spatial positioning of the discharge source in the entire substation. The key to successfully realizing the spatial positioning of the discharge source is the UHF sensor. , while conventional UHF sensors in the prior art do not have the characteristics of omnidirectionality and broadband, and cannot meet the demand for spatial positioning of discharge sources

Method used

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  • Ultrahigh-frequency sensor and local discharge detection device

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Embodiment Construction

[0014] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0015] The embodiment of the present invention provides the embodiment of the UHF sensor, such as figure 1 and figure 2 As shown, the UHF sensor includes an antenna 1 , a short-circuit pin 2 and an insulating support 3 . The surface of the antenna 1 is curved.

[0016] Such as figure 1 As shown, the antenna 1 includes a curved surface located on the upper part and a cone surface located at the bottom of the curved surface. The curved surface has a spherical surface. The diameter gradually decreases from the first end to the second end. The radius of the spherical surface is 65mm, the maximum diameter of the cone surface is 140mm, and the height of the cone surface is 70mm.

[0017] There ...

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Abstract

The invention discloses an ultrahigh-frequency sensor and a local discharge detection device. The ultrahigh-frequency sensor comprises an insulating support, an antenna and short-circuit dowels. The antenna with curved surfaces is arranged on the insulating support; the short-circuit dowels are connected onto the antenna. The ultrahigh-frequency sensor and the partial discharge detection device have the advantages that the omni-directional property of the ultrahigh-frequency sensor can be improved; the performance of the ultrahigh-frequency sensor can be adjusted via the short-circuit dowels, so that working frequency bands of the ultrahigh-frequency sensor can be expanded and widened, the ultrahigh-frequency sensor is excellent in performance, and substation space orientation requirements can be met.

Description

technical field [0001] The invention specifically relates to a UHF sensor and a partial discharge detection device. Background technique [0002] The ultra high frequency (UHF) method has become the focus and hotspot in the field of partial discharge detection at home and abroad in the past two decades due to its advantages such as wide coverage, high sensitivity, and the ability to identify and locate discharge sources. In recent years, the idea of ​​UHF array spatial positioning has been proposed. Four UHF sensors form a sensing array to realize the detection and spatial positioning of the discharge source in the entire substation. The key to successfully realizing the spatial positioning of the discharge source is the UHF sensor. , while the conventional UHF sensor in the prior art does not have the characteristics of omnidirectionality and broadband, and cannot meet the demand for spatial positioning of the discharge source. Contents of the invention [0003] The pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08G01R31/12
Inventor 段大鹏江秀臣齐伟强盛戈皞刘若溪钱勇程序刘弘景
Owner STATE GRID CORP OF CHINA
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