High pressure gas mixtures have been used for a number of years as the dielectric media for selected high voltage systems and components. Typical applications range from the Van de Graaff high voltage electrostatic generator to transformers, bushings and circuit breakers. The principal advantages of this medium as compared to liquid and solid dielectrics are that it is flexible in that the breakdown, field strength and total voltage characteristics of any electrode configuration can be varied simply by varying the gas mixture and pressure. An added and probably more important advantage, however, is its recovery characteristic after electrical breakdown and passage of high energy. Thus, gas gaps completely recover, usually within microseconds whereas liquid and solid gaps maintain a conducting path which can be removed normally only by recirculating and cleaning the liquid or replacing the solid.
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机译：高压气体混合物已经用作选定高压系统和组件的介电介质已有多年了。典型应用范围从Van de Graaff高压静电发生器到变压器，套管和断路器。与液体和固体电介质相比，该介质的主要优点在于它的灵活性，因为只要改变气体混合物和压力，就可以改变任何电极配置的击穿，场强和总电压特性。然而，附加的且可能更重要的优点是其在电击穿和高能量通过后的恢复特性。因此，气隙通常在几微秒内完全恢复，而液体和固体间隙保持导电路径，只有通过再循环和清洁液体或更换固体，才能正常去除该导电路径。
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