Sulphur Hexa Floride Circuit Breakers

N S Gorhe

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Sulphur Hexa Floride Circuit Breakers

机译：六氟化硫断路器

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Sulphur Hexa Fluoride (SF_6) is the recent development in the field of high voltage switchgear circuit breaker. In this a gas called sulphur hexa flouride is used as the medium of insulation and arc interruption. SF_6 is about 5 times heaver than air. It is chemically very stable, odourless, inert, non-flammable and non-toxic, The gas has a high dielectric strength and outstanding arc quenching characteristics. In SF_6, the arc voltage remains low until immediately before current zero so that arc energy does not attain high value. Moreover, the arc time constant for SF_6 is also very low. Furthermore, SF_6 and decomposition products are electronegative permitting electron capture at relatively high temperature.

机译：六氟化硫（SF_6）是高压开关设备断路器领域中的最新进展。在这种情况下，称为六氟化硫的气体被用作绝缘和电弧中断的介质。 SF_6比空气重约5倍。它在化学上非常稳定，无味，惰性，不易燃且无毒。该气体具有高介电强度和出色的灭弧特性。在SF_6中，电弧电压一直保持低电平，直到紧接电流零之前为止，这样电弧能量就不会达到高值。此外，SF_6的电弧时间常数也非常低。此外，SF_6和分解产物是带负电的，允许在相对较高的温度下捕获电子。

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来源
《Electrical India》 |2016年第1期|146-148150|共4页
作者
N S Gorhe;
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Walchand Collage of Engineering in Electrical Dept. of K K Wagh Polytechnic Chandori;

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Sulphur Hexa Floride Circuit Breakers

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