Insulation Requirements For Oil Immersed Transformers

The requirement for transformer insulation is that it should not affect the normal operation of the transformer due to insulation damage during the operating period. The main requirements are as follows:
(1) Capable of withstanding overvoltage during operation and normal operating voltage.
(2) Capable of withstanding short-circuit current, overcurrent, and normal operating current during operation.
(3) Moisture and aging do not affect the normal operation of the transformer.