PCS-9726 Generation Management Unit PCS-9726 generation management unit is a microprocessor-based device used for protecting, measuring and controlling two-winding box-type transformer in new energy power station (wind power station or photovoltaic power station etc.). It also includes the functions of protocol conversion and ring-network communication, and supports externally expanded color touch screen LCD to achieve local Protection Functions • Six stages of mechanical protection Three stages of phase overcurrent protection Two stages of negative sequence overcurrent protection Generation Management Unit side 2 Figure 1 Typical PCS-9726 Functional Block Diagram

GREEN(Renewable Energy Generation,Storage & Microgrid) • Two stages of residual overcurrent protection • One stage of undervoltage protection • One stage of overvoltage protection • Differential protection (optional) Measurement Functions • 42 binary inputs • 26 analog inputs • 3 groups of remote control signals • 4 groups of 4-20mA signals • 4 groups of RTD signals Communication Functions • Four Ethernet ports • Ten RS485/RS232 serial ports • Support of various protocols: IEC61850, IEC60870-5-103, Modbus. • “Hand in hand” ring network by two pairs of optical interface Additional Functions •...