PLB-2 generator integrated protector circuit block diagram

PI.B-2 generator comprehensive protector is a product of Shenzhen Xuzhen Electric Technology Co., Ltd. It is
an intelligent protection device specially designed to solve the problems of generator protection in small hydropower stations. This protection device takes PIC microcontroller as the core, has
simple hardware, high precision, good stability and reliability, flexible setting, and diverse functions. It has
three-stage as well as overvoltage, undervoltage, Overspeed (speeding) and underspeed protection functions. Overspeed and underspeed protection will automatically
perform different processing according to the situation of the generator being connected to the grid (current greater than 6%k is considered to be connected to the grid). The circuit block
diagram     of the PLB-2 generator comprehensive protector is shown in Figure 7-25.