Multifunctional combined test valve for gas moisture and decomposer tests of transformer substation

Abstract

The invention relates to a multifunctional combined test valve for an SF6 gas moisture and decomposer tests to equipment of a transformer substation. The test valve comprises a three-way pin valve and an angle valve which are assembled together, wherein two valve joints of the angle valve are of right angles, the valve rod of the angle valve is of a column shape, and ventilating slots corresponding to the valve joints which are vertical to the valve rod are formed on the valve rod; and valve joints vertical to the valve rod on the angle valve are connected to the valve joints which are over against the valve rod of the pin valve and arranged on the pin valve. According to the multifunctional combined test valve, the operation of a humidity and decomposer test can be completed by once assembly and disassembly in the SF6 gas moisture and decomposer test to the equipment of the transformer substation; and power grid safety is better guaranteed in a live test, the emission amount of SF6 gas is reduced, and the air quality is improved.

Description

technical field [0001] The invention relates to a method for performing SF on substation equipment 6 Multi-functional combined test valve for gas humidity and decomposition test. Background technique [0002] SF produced at home and abroad 6 There are many types of gas humidity and decomposition instruments. Various humidity instruments and decomposition instruments, because each instrument has its own joints, are basically not interchangeable, so that when performing humidity and decomposition tests on site, it is often necessary to bring the respective joints of each instrument. Each device needs to be disassembled and assembled multiple times to complete the test. During the live test, most of the equipment without valves in front of the joints are check valves, which are easy to cause air leakage, causing the power grid to be unsafe, and the discharged SF 6 Gas is also a kind of pollution to the atmosphere. Contents of the invention [0003] The purpose of the pre...

AI Technical Summary

Problems solved by technology

Various humidity instruments and decomposition instruments, because each instrument has its own joints, are basically not interchangeable, so that when performing humidity and decomposition tests on site, it is often necessary to bring the respective joints of each instrument. Each device needs to be disassembled and assembled several times to complete the test.

During the live test, most of the equipment without valves in front of the joints are check valves, which can easily cause air leakage, resulting in unsafe power grids, and the discharged SF 6 Gas is also a kind of pollution to the atmosphere

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