Special tee for test of sulfur hexafluoride gas and use method of tee

Abstract

The invention relates to a special tee for the test of sulfur hexafluoride gas. The tee comprises a hollow body; the hollow body is provided with one air inlet pipe and two air outlet pipes; the end parts of the air inlet pipe and the air outlet pipes are provided with detachable adapters; the hollow body is also provided with a releasing valve; the use method comprises the steps of 1, selecting the adapters; 2, connecting electrical equipment filled with the sulfur hexafluoride gas and used sulfur hexafluoride gas brackish water and decomposer test equipment; 3, testing; 4, performing gas releasing operation after the test is finished; 5, wholly transferring to the next test point for performing the next around test. Compared with the prior art, the special tee for test of the sulfur hexafluoride gas and the use method of the tee have the beneficial effects that 1, the brackish water test and decomposer test of the sulfur hexafluoride gas can be finished at the same time; 2, the times for assembling and disassembling the adapters are reduced, and the influence to the sealing effect of the equipment due to multiple times of assembly and disassembly is avoided; 3, the work efficiency is improved, and the labor intensity of workers is relieved; 4, data is not influenced by residual gas, the test precision is improved and the harm to staff caused by overlarge gas pressure is prevented.

Description

Technical field [0001] The invention relates to an auxiliary device for testing sulfur hexafluoride gas, in particular to a special tee for testing sulfur hexafluoride gas and a use method thereof. Background technique [0002] Pure sulfur hexafluoride gas is a colorless, odorless, non-toxic, chemically stable, non-combustible gas, with good electrical insulation properties and excellent arc extinguishing performance, no fire hazard and many other advantages. Its electric strength is 2.5 times that of nitrogen under the same pressure, its breakdown voltage is 2.5 times that of air, and its arc extinguishing capacity is 100 times that of air. It is a new generation of ultra-high voltage insulation material superior to air and insulating oil. . Sulfur hexafluoride gas is widely used in electronics and electrical fields such as: circuit breakers, high-voltage transformers, gas-enclosed combined capacitors, high-voltage transmission lines, transformers, etc., and is used as insulati...

AI Technical Summary

Problems solved by technology

[0005] In the current on-site testing work, the sulfur hexafluoride micro-water test and the decomposition test are respectively completed by two sets of special instruments. When in use, the two sets of instruments need to be connected to the sulfur hexafluoride gas chamber interface of the same electrical equipment. To complete the two tests, it is necessary to disassemble and tighten the joints of the test instruments 4 times, which not only increases the workload of the maintenance personnel, but also causes the interface of the sulfur hexafluoride gas chamber of the equipment to wear and loosen due to repeated loading and unloading, and even cause the sulfur hexafluoride gas chamber interface to be filled with hexafluoride Sulfur electrical equipment is not tightly sealed, resulting in equipment leakage, which seriously affects the reliability of power grid power supply

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