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Testing system of gas insulated combined electric appliance equipment

A gas-insulated combination and electrical equipment technology, applied in the field of power systems, can solve problems that affect the detection results of GIS equipment and are not involved, and achieve the effects of convenient on-site debugging and detection, easy operation, and normal operation

Active Publication Date: 2010-12-01
SIEYUAN ELECTRIC CO LTD
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Problems solved by technology

However, the above-mentioned technology does not involve the shielding of the partial discharge of the GIS withstand voltage test system itself. When the partial discharge of the test system itself is large, it will inevitably affect the results of the partial discharge detection of the GIS equipment. Therefore, it is necessary to carry out partial discharge on the GIS The partial discharge of the discharge test system is tested and reduced

Method used

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  • Testing system of gas insulated combined electric appliance equipment
  • Testing system of gas insulated combined electric appliance equipment
  • Testing system of gas insulated combined electric appliance equipment

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Embodiment Construction

[0024] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0025] Such as figure 1 As shown, this embodiment includes: console 2, voltage regulator 3, filter box 4, test transformer 5, sleeve 6, temperature sensor 7 and partial discharge instrument 8, wherein: the first input terminal of console 2 is connected to 380V The power supply is connected and receives the power input, the first output terminal of the console 2 is connected with the input terminal of the voltage regulator 3 and transmits the step-up / down control signal to the voltage regulator 3, the first output terminal of the voltage regulator 3 is connected with the input terminal of the voltage regulator 3 Th...

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Abstract

A testing system of gas insulated combined electric appliance equipment in the technical field of electric system comprises a control platform, a voltage regulator, a wave filtering box, a test transformer, a temperature sensor, a sleeve and a partial discharge instrument; the wave filtering box comprises a wave filter, a parallel compensation reactor and a quick protection device. In the invention, the technologies of SF6 insulation and reactor compensation are used for shielding spatially coupled partial discharge interference signal at the outside of the measuring system so that the rated partial discharge of the system is lower than 5pC, which not only reduces the partial discharge of the GIS testing equipment but also solves the effect on the test experiment of on-site interference. The invention can be applied in the high voltage power supply of 500kV GIS on-site AC withstand voltage test and local partial discharge test and 110 kV or 220kV GIS on-site AC withstand voltage test and local partial discharge test.

Description

technical field [0001] The invention relates to a test device in the technical field of power systems, in particular to a power frequency withstand voltage and partial discharge test system for gas-insulated composite (GIS) electrical equipment. Background technique [0002] With the development of the economy and power grid, the whole society has higher and higher requirements for the stability of power transmission and distribution, so higher requirements are put forward for the reliability of power transmission and distribution equipment. At present, GIS (SF 6 Closed combined electrical appliances) are more and more widely used, so higher requirements are put forward for the handover test and routine maintenance test of GIS equipment. [0003] The on-site partial discharge test of GIS is gradually regarded as an on-site handover test, and it is getting more and more attention. Now there are many kinds of equipment for GIS AC withstand voltage test that can be provided in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R27/26
Inventor 李刚魏立新张志英
Owner SIEYUAN ELECTRIC CO LTD
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