Insulation test tool for gas-insulated metal-enclosed switchgear (GIS)

A technology of closed switchgear and gas-insulated metal, applied in the direction of testing dielectric strength, etc., can solve the problems of inconvenient docking between test equipment and GIS, difficult installation, and lack of universality of test equipment

Inactive Publication Date: 2011-05-25
SHANGHAI SIEYUAN HIGH VOLTAGE SWITCHGEAR
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Problems solved by technology

Most of the electrical test equipment at this stage has the following disadvantages: general equipment can only independently test GIS equipment of different voltage levels, the test equipment is not universal, and the test efficiency is not high
It is difficult to install the lightning impulse test
It is inconvenient to connect the test equipment with the GIS interval
[0005] After searching the existing technology, it is found that, for exampl

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  • Insulation test tool for gas-insulated metal-enclosed switchgear (GIS)
  • Insulation test tool for gas-insulated metal-enclosed switchgear (GIS)
  • Insulation test tool for gas-insulated metal-enclosed switchgear (GIS)

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Embodiment Construction

[0022] 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.

[0023] Such as Figure 1-3 As shown, this embodiment includes: power frequency test transformer 1, lightning impulse generator (connected with lightning impulse introduction bushing 11, not shown in the figure), impulse voltage introduction bushing 11, voltage divider coupler 2, partial discharge Calibration terminals, three-phase transfer switches 5, 8, and four three-position isolating switches 3, 4, 9, 10, wherein: the output end of the first three-position isolating switch 3 is sequentially connected with the voltage divider coupler 2 and the power frequency test The transformer 1 is connected, the output end ...

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Abstract

The invention relates to an insulation test tool for gas-insulated metal-enclosed switchgear (GIS) in the technical field of high-voltage switches. The insulation test tool comprises a power frequency test transformer, a thunder impulse generator, an impulse voltage leading-in sleeve, a voltage division coupler, a partial discharge calibration terminal, a three-phase transfer switch and four three-station isolating switches. In the insulation test tool, a thunder impulse test device is combined with a power frequency tolerance voltage test, two tests can be performed under the conditions of not changing the interval connection modes by switching the three-station isolating switches, and the test efficiency is improved. One set of intervals of 145kv and one set of intervals of 252kv can be jointed simultaneously by using two voltage classes of three-phase transfer. The insulation test tool structure for the GIS greatly improves the utilization rate of test equipment, and a thunder impulse test, a power frequency tolerance test and a partial discharging amount measurement test can be finished one time after interval joint; and the interval joint is more convenient.

Description

technical field [0001] The invention relates to a device in the technical field of high-voltage switches, in particular to an insulation test tool for gas-insulated metal-enclosed switchgear. Background technique [0002] GIS must maintain a high degree of reliability in long-term use. For this reason, various tests must be carried out on the equipment according to the design specifications. In the manufacturing plant, there are: tests on the raw materials used, intermediate tests in the manufacturing process, product finalization and factory tests, etc. Through the test, mastering the condition of the GIS insulation can guarantee the product quality or find its defects early, so as to carry out corresponding maintenance and repair to ensure the normal operation of the equipment. [0003] Insulation tests can be divided into two categories: insulation characteristic test and insulation withstand voltage test; the first type of insulation characteristic test refers to measur...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 刘志刚李景峰陈邦栋胡清马立演
Owner SHANGHAI SIEYUAN HIGH VOLTAGE SWITCHGEAR
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