Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line

An AC/DC and UHV technology, applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as low voltage and voltage levels that cannot be met

Active Publication Date: 2010-06-02
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the existing test devices can only be used for the test of SF6 gas gap insulation characteristics and insulator flashover characteristics, and cannot be used for live assessment of GIL unit sections; some can only be used for live assessment of GIL unit sections under high voltage and canno

Method used

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  • Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line
  • Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line
  • Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line

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Example Embodiment

[0023] The following specifically describes the composition and structure of the test device for UHV AC and DC gas insulated metal enclosed transmission lines according to the present invention. Such as figure 1 Is the overall structure of the device, figure 2 The device is disassembled and assembled into a structure diagram for the large-size coaxial cylindrical electrode SF6 gas gap insulation test under UHV AC and DC, image 3 The disassembly and assembly of the device is a structural diagram for the insulation performance test of UHV AC and DC GIL insulators.

[0024] Such as figure 1 As shown, the test device according to the present invention, from left to right, is composed of No. 1 high-voltage terminal 3, No. 1 high-voltage equalizing ring 1, No. 1 silicone rubber composite insulator high-voltage bushing 5, and No. 1 tower tube 7 Directly placed high voltage and large current lead-in, the No. 1 silicone rubber composite insulator bushing 5 can introduce AC phase voltage...

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Abstract

The invention relates to an experiment device used for an extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line (GIL). The device is provided with the capabilities of electrification examination of an extra-high voltage alternating current and extra-high voltage direct current GIL unit segment under high voltage and large current, insulation property experiment of large size axial cylinder SF6 gas gap for the extra-high voltage alternating current and extra-high voltage direct current GIL, and flashover characteristic experiment of a pillar insulator and a disc insulator for the extra-high voltage alternating current and extra-high voltage direct current GIL, and can meet requirements for a fundamental research and the electrification examination of the extra-high voltage alternating current and extra-high voltage direct current GIL. The device comprises a left high-voltage and large current leading-in end, a right high-voltage and large current leading-in end, and a horizontal straight line section, wherein each high-voltage and large current leading-in end is vertically placed and comprises a high-voltage connection end, a high-voltage grading ring, a silicon rubber compound insulator high-voltage sleeve pipe, and a tower type cylinder, the horizontal straight line section comprises a horizontal unit cylinder, 3 disc insulators and one pillar insulator, and the horizontal unit cylinder is formed by axially arranging 4 grounded outer shells and a middle high-voltage guide rod.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission lines and insulation, in particular to a test device for UHV AC-DC gas-insulated metal-enclosed transmission lines. Background technique [0002] Gas Insulated Metal Enclosed Transmission Line (GIL: Gas Insulated Metal Enclosed Transmission Line) is a new type of transmission line that uses SF6 gas or a mixture of SF6 and N2 gas to insulate, and the shell and guide rod are coaxially arranged. It has a large transmission capacity and a small footprint. , high reliability, maintenance-free, long life, and little interaction with the environment. The research and development of this technology began in the 1960s with the aim of realizing underground transmission lines with the same transmission capacity as overhead transmission lines. High Voltage Power Corporation, the predecessor of CGIT Systems.Inc. of the United States, installed the world's first GIL at the Hudson Power Plant ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 范建斌李金忠汤浩韩书谟谭盛武钟建英张友鹏
Owner CHINA ELECTRIC POWER RES INST
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