Why Is The Insulation Of The Core Of A Constant Voltage Transformer Prone To Aging And Damage?

The core of the 3 phase constant voltage transformer series is composed of multiple layers of silicon steel sheets, and the interlayer insulating varnish is an indispensable component of the overall structure. With long-term operation, the interlayer insulating varnish of the constant voltage transformer for home series core will gradually deteriorate due to mechanical vibration, thermal cycling, and electromagnetic stress. If the varnish cracks due to loose clamping screws or structural deformation between the silicon steel sheets, eddy current losses will increase, leading to localized temperature increases, increased oil temperature in the tank, and deterioration of oil quality.