Automatic Thyristor Switching Device TKEP for AC Power Supply Systems

The device is designed for automatic load switching from the main power source to the backup power source in power supply systems of I category of AC voltage 380V. Functionally, the device consists of two identical arms: if you look from the front side of the cabinet, the upper 3 BTK blocks are taken as the main arm (the first), and the lower ones are taken as the backup arm (the second). The CBU and BTK units are interconnected by a serial CAN interface, through which all units are controlled and communicated. The code board determines whether the BTK belongs to a certain arm and a certain phase. The main arm is connected to the main load power supply, and the backup arm to the backup power supply. Each BTK contains an output voltage sensor, a valve conductivity sensor, a fusible link for backup short-circuit protection, an output current sensor, a fusible link breakage sensor, indicators displaying current and voltage output, and a switch....