And the new transfer equipment has such function:high-speed,synch capture switch and residual voltage switch.

In order to explore the method to calculate the short-circuit faults of a new-type converter transformer,which can provide the theoretical foundation for the setting of relay protection and design of automatic control device in the new-type converter transformer,This paper studied the residual voltage transformation method which is an effective method to calculate short circuit fault.

Analysis of unusual situation of the voltage switching circuit;

Research of voltage switching in typical network structure of digital substation

Discussion on the design of micro-voltage switching function in the double busbar

Analysis and solution of voltage switch plug-burning problem

For the existing problem of the secondary voltage switch of duplicate bus voltage transformers,this paper firstly analyzes several situations of fuse blowing of voltage transformers and breakage criterion using microprocessor-based protection,and then concludes some measures to prevent mistake action causing secondary circuit losing voltage.

In the FB-ZVS-PWM converter, a saturable resonant inductor is used, which reduces the losses of the accessory circuit energy and effective duty cycle, and the load range of the Zero-Voltage-Transition (ZVT) is extended.