This article presents the comparison of the dielectric properties of three different refrigerant fluids, HFE-7100, HFC-245fa, and HFO-1336mzz(E) (R-1336E Opteon ME), the latter having a global warming potential of two orders of magnitude lower than the other two. Refrigerant fluids are used, among others, in generator circuit breaker applications where good thermal and chemical properties must be coupled with excellent dielectric strength and low electric conductivity. This article describes in detail the applied measurement techniques and the results obtained, as well as comparisons to previous measurements and literature. The comparison includes dielectric breakdown in liquid and vapor phase, dc conductivity, real permittivity, and dissipation factor.

中文翻译：

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制冷剂流体 HFO-1336mzz-E、HFC-245fa 和 HFE-7100 的介电特性

本文比较了三种不同制冷剂流体 HFE-7100、HFC-245fa 和 HFO-1336mzz(E) (R-1336E Opteon ME) 的介电特性，后者具有两个数量级的全球变暖潜势低于其他两个。除其他外，制冷剂流体用于发电机断路器应用，在这些应用中，良好的热和化学特性必须与出色的介电强度和低电导率相结合。本文详细描述了应用的测量技术和获得的结果，以及与以前的测量和文献的比较。比较包括液相和气相中的介电击穿、直流电导率、实际介电常数和损耗因数。