Control the characteristics and functions of the transformer?
Control transformer is one of the most important and obvious features, that is, the system's capacitance to ground is not small enough to cause personal injury, protect personal safety and control dangerous voltage.
The control transformer is electrically insulated from the primary side and the secondary side, that is, the circuit is isolated. But the principle of controlling the transformer is the same as that of a normal transformer. They all use the principle of electromagnetic induction.
The control transformer also uses the characteristics of the high frequency loss of its core to suppress high frequency clutter from entering the control loop. The control transformer is used to suspend the second ground to the ground, and is used in a place where the power supply range is small and the line is short.