What methods are used for gas removal from silicone oil, and why is it important?

Gas removal from silicone oil is typically achieved through vacuum degassing, where the oil is subjected to low-pressure conditions that cause dissolved gases to vaporize and be extracted. This process is important because dissolved gases, especially oxygen and combustible gases, can decrease the oil’s dielectric strength and increase the likelihood of electrical discharges. Removing these gases enhances the insulating properties of the oil, improves transformer safety, and prevents potential operational issues related to gas accumulation.