öljyeristeiset
öljyeristeiset are a type of insulating material used in electrical equipment. The name itself, derived from Finnish, directly translates to "oil-insulated" or "oil-based insulation." These materials primarily consist of mineral oils, often derived from petroleum, which possess excellent dielectric properties. This means they are very effective at preventing the flow of electrical current, thereby acting as an insulator.
These oils are commonly found in transformers, circuit breakers, and other high-voltage electrical apparatus. In transformers,
The effectiveness of öljyeristeiset depends on several factors, including the oil's purity, viscosity, and flash point.