he performance characteristics of oil immersed transformers are:

a. The low-voltage winding of oil immersed transformers generally adopts a cylindrical structure with copper foil winding, except for small capacity copper wires; The high-voltage winding adopts a multi-layer cylindrical structure, which ensures a balanced distribution of ampere turns, low magnetic leakage, high mechanical strength, and strong short-circuit resistance.

b. The iron core and winding each adopt fastening measures, and the fastening parts such as the height and low-voltage lead are equipped with self-locking anti loosening nuts. They adopt a non hanging core structure and can withstand transportation vibrations.

c. The coil and iron core are vacuum dried, and the transformer oil is filtered and injected using a vacuum process to minimize moisture inside the transformer.

d. The oil tank adopts corrugated plates, which have breathing function to compensate for the volume change of oil caused by temperature changes. Therefore, this product does not have an oil storage tank, which obviously reduces the height of the transformer.

e. Due to the replacement of the oil storage tank by corrugated plates, the transformer oil is isolated from the outside, effectively preventing the entry of oxygen and water, which can lead to a decrease in insulation performance.

f. Based on the above five performance points, it ensures that oil immersed transformers do not require oil changes during normal operation, greatly reducing maintenance costs and extending the service life of transformers.