Dry Type Transformer Function
The main function of Dry Type Transformer is to completely insulate the electrical connection between the primary and secondary sides and to isolate the circuit. In addition, the high-frequency loss of the core is used to suppress the high-frequency noise from entering the control circuit. Using a dry-type transformer to suspend the secondary to the ground can only be used in situations where the power supply range is small and the line is short. At this time, the system's capacitive current to the ground is too small to cause harm to people. Another very important function is to protect personal safety! Isolate dangerous voltage.
With the continuous development of the power system, the transformer plays an increasingly important role as a key equipment in the power system, and its safe operation is directly related to the reliability of the operation of the entire power system. Transformer coil deformation refers to the axial and radial size changes, body displacement, coil distortion, etc. of the coil after being subjected to force. There are two main reasons for the deformation of the transformer coil: one is that the transformer is inevitably subjected to external short-circuit fault impact during operation; the other is that the transformer has an accidental collision during transportation and hoisting.
Power
The magnetic flux of the transformer core is related to the applied voltage. In the current, the excitation current will not increase with the increase of load. Although the core will not saturate when the load increases, the resistance loss of the coil will increase. If the rated capacity is exceeded, the heat generated by the coil cannot be dissipated in time, and the coil will be damaged. If the coil is made of superconducting materials, the increase in current will not cause heating, but there is impedance caused by magnetic leakage inside the transformer. The output voltage will drop when the current increases. The larger the current, the lower the output voltage, so the transformer output power cannot be infinite. If the transformer has no impedance, then when the current flows through the transformer, it will generate a particularly large electric force, which can easily damage the transformer coil. Although the power is unlimited, it cannot be used. It can only be said that with the development of superconducting materials and core materials, the output power of transformers of the same volume or weight will increase, but not infinitely!