The core should be flat with intact insulation varnish film and tightly stacked laminations. The silicon steel sheets on the edges should not be curled up or wavy. The surface of all core parts should be free of oil sludge and impurities. There should be no short circuits or (lapping) between laminations, and the joint gaps must meet the required specifications. Read More

Transformer cores are generally made of silicon steel sheets. Silicon steel is a type of steel containing silicon (also known as silica). The reason for using silicon steel to make transformer cores is that it is a highly permeable magnetic material, which can generate a strong magnetic induction intensity within an energized coil. This allows the volume of the transformer to be reduced. Read More

When installing the valve chamber cover, excessive tightening force can easily cause it to deform and leak oil. In this case, remove the leaking cover and carefully reshape it by gently tapping it with a wooden stick to restore a flat contact surface. Then, reinstall it with a new gasket. Different parts of the machine may have different oil leak issues, so be careful not to cause any damage to the equipment during the repair process. Read More