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    • 76. 发明授权
    • Gas insulation switch
    • 气体绝缘开关
    • US06292356B1
    • 2001-09-18
    • US09273502
    • 1999-03-22
    • Tokio YamagiwaHiroki HonmaKoji Sasaki
    • Tokio YamagiwaHiroki HonmaKoji Sasaki
    • H02B120
    • H02B1/22H01H2033/566H02B5/06
    • A gas insulation switch has a container charged with insulating gas which contains an electric conductor and at least a pair of contactors. The container is divided into a plurality of sections. For the sections which have no switching devices or separable contactors, a different insulating gas is used as compared with that for the sections having breakers or separable contactors. In particular, in the section of the container, such as a grounding tank, that contains only electric conductors without separable contactors, an insulating gas having a smaller earth warming coefficient or global warming coefficient than that of SF6 gases is used. On the other hand, for the section of the grounding tank which contains a breaker or switch having separable contactors, an SF6 insulating gas is used. Since SF6 gas is known to have a high earth or global warming coefficient, as compared with air or nitrogen gas, the SF6 gas is only used as the insulating gas in the grounding tank for the sections in which superior arc extinguishing performance is required. Accordingly, the gas insulation switch has a reduced requirement for SF6 gas.
    • 气体绝缘开关具有装有绝缘气体的容器,该容器包含电导体和至少一对接触器。 容器被分成多个部分。 对于没有开关装置或可分离接触器的部分,与具有断路器或可分离接触器的部分相比,使用不同的绝缘气体。 特别地,在仅含有不具有可分离接触器的电导体的容器(例如接地箱)的部分中,使用具有比SF 6气体更小的地球变暖系数或全球变暖系数的绝缘气体。 另一方面,对于包含具有可分离接触器的断路器或开关的接地箱部分,使用SF6绝缘气体。 由于SF6气体已知具有高的地球或全球变暖系数,与空气或氮气相比,SF6气体仅用作需要优异灭弧性能的区域的接地罐中的绝缘气体。 因此,气体绝缘开关对SF6气体的要求降低。