The SCR based STS (Static Transfer Switch) is an automatic power transfer system that selects between two power sources. Under normal operating conditions, when the main power supply is within the normal voltage range, the load remains continuously connected to the main power supply. In the event of

The three phase Static Transfer Switch is the second option automatic switching system of the power supply. Under the normal working state, the main power supply is within the normal voltage range, and the load is always connected to the main power supply. When the main power supply fails, the load