The main function of the isolation transformer is to completely insulate the primary side and the secondary side electrically, and also isolate the loop. In addition, the high frequency loss of its iron core is used to suppress the transmission of high-frequency clutter into the control loop. The use of isolation transformers to levitate the secondary to ground can only be used in occasions where the power supply range is small and the line is short. At this time, the capacitance current of the system to ground is not small enough to cause harm to people. Another very important role is to protect personal safety! Isolate dangerous voltages.
With the continuous development of the power system, transformers play an increasingly important role as key equipment in the power system, and its safe operation is directly related to the reliability of the entire power system operation. Transformer coil deformation refers to the axial and amplitude size changes, body displacement, coil distortion and other situations that occur after the coil is stressed. There are two main reasons for the deformation of transformer coils: one is that the transformer is inevitably affected by external short circuit faults during operation, and the other is that the transformer has an accidental collision during transportation and hoisting.