摘要：1问题的提出 SF_6断路器以SF_6气体为绝缘和灭弧介质，SF_6气体泄漏将导致SF_6断路器内部气体压力下降。当压力降低到某一数值时，SF_6断路器将不允许进行分、合闸操作。因此，SF_6气体压力是否正常，将成为影响电气设备安全、稳定供电的制约环节。
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