isolatsioonõlide

Isolatsioonõlid, also known as insulating oils or dielectric oils, are specialized fluids used primarily in electrical equipment for their insulating and cooling properties. They are crucial components in transformers, high-voltage cables, circuit breakers, and other electrical apparatus. The primary function of an isolatsioonõli is to prevent electrical arcing and breakdown by providing a high dielectric strength. This means it can withstand a significant electrical voltage without becoming conductive.

In addition to electrical insulation, isolatsioonõlid serve as an effective coolant. They absorb heat generated by electrical components, such as the windings in a transformer, and transfer it away through convection. This cooling action prevents overheating and extends the operational life of the equipment.

The most common type of isolatsioonõli is mineral oil, derived from crude oil. However, due to environmental concerns and evolving regulations, alternative types such as synthetic esters, natural esters (vegetable-based oils), and silicone fluids are gaining popularity. These alternatives often offer improved fire safety, biodegradability, and performance at extreme temperatures.

The quality of isolatsioonõli is critical for the reliable operation of electrical equipment. Over time, these oils can degrade due to oxidation, moisture absorption, and contamination from byproducts of electrical discharge or solid particles. Regular testing and maintenance, including filtration and oil replacement, are therefore essential to ensure the continued effectiveness of the insulating oil.