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Test apparatus of DC gas insulated metal enclosed transmission line (GIL)

A gas-insulated metal and transmission line technology, applied in the direction of fault location, testing dielectric strength, etc., can solve the problems of failing to meet the DC GIL insulation test, etc., achieve the effect of reducing the amount of use, and the operation process of charging and discharging is simple

Active Publication Date: 2011-04-20
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Does not have SF at the same time 6 The test capabilities of gas gap insulation test, insulator surface flashover characteristic test, and metal conductive particle test cannot meet the needs of DC GIL insulation test

Method used

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  • Test apparatus of DC gas insulated metal enclosed transmission line (GIL)
  • Test apparatus of DC gas insulated metal enclosed transmission line (GIL)
  • Test apparatus of DC gas insulated metal enclosed transmission line (GIL)

Examples

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Embodiment Construction

[0046] The composition and structure of the test and research device for DC gas-insulated metal-enclosed transmission line (GIL) according to the present invention will be described in detail below. like figure 1 The overall structure diagram of the device and figure 2 The top view of the device is shown.

[0047] like figure 1 As shown, the entire test device according to the present invention has an approximately "L" shape, which is provided with a high-voltage lead terminal 1, a high-voltage equalizing ring 2 and a silicone rubber composite insulator high-voltage bushing 3 in the vertical direction. In the horizontal direction, the middle high-voltage guide rod electrode 9 and the test device casing 19 are coaxially distributed, and the unit module No. 1 air chamber 14, No. 2 air chamber 17, and No. 3 air chamber 20 form a horizontal test device casing 19, of which 1 No. air chamber 14 is arranged vertically, No. 2 air chamber 17 and No. 3 air chamber 20 are arranged ho...

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Abstract

The invention relates to a test apparatus of a DC gas insulated metal enclosed transmission line (GIL). The apparatus has the test capabilities of SF6 gas clearance insulation tests, insulator surface flashover characteristic tests and metallic conducting particle tests, and can well meet insulation test requirements of the DC GIL. The apparatus approximately takes the shape of 'L', and comprises a high-voltage lead end, a high-voltage equalizing ring and a silicon rubber composite insulator high-voltage bushing in the vertical direction and high-voltage guide electrodes which are coaxially distributed and positioned in the middle along the horizontal direction, a peripheral test apparatus shell, and a transverse test apparatus shell which is composed of three air chambers together.

Description

technical field [0001] The invention relates to the technical field of high-voltage transmission lines and insulation. Background technique [0002] Gas Insulated Metal Enclosed Transmission Line (GIL: Gas Insulated Metal Enclosed Transmission Line) originated from SF 6 Insulated metal-enclosed busbar is a kind of SF 6 gas or SF 6 and N 2 High voltage and high current power transmission equipment with mixed gas insulation, coaxial arrangement of shell and conductor. Its electrical characteristics are similar to those of overhead lines, without insulation aging problems, low loss, good safety protection, small footprint, and advantages in large-capacity and long-distance power transmission. 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, in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R31/08
Inventor 范建斌李鹏李金忠吴军辉张友鹏张书琦王宁华汤浩
Owner CHINA ELECTRIC POWER RES INST
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