
What is a 400KVA Oil Transformer and How Does It Work?
A 400KVA oil transformer plays a vital role in modern power distribution by combining robust load-handling capacity with efficient thermal management. Unlike dry-type alternatives, this transformer uses specially formulated insulating oil that serves a dual purpose—cooling internal components during operation while providing high-level electrical insulation between windings and the core. With a typical oil capacity ranging from 150 to 250 liters, a 400KVA oil transformer is engineered to deliver reliable voltage transformation under demanding conditions, making it a preferred choice for commercial and industrial applications where consistent performance and long service life are essential.









