Breaker timing - zensol
2019-4-17 · – Sulfur hexafluoride, or SF6. 220.127.116.11 MINERAL OIL. Mineral oil was, until recently, the interrupting medium of choice. It has excellent breaking and insulating quality especially when it is very pure, as is the case when it is used in certain devices such as capacitors or transformers, which are airtight devices.