Microcomputer intelligent comprehensive protection device
                            产品型号: GDB-7G   
                            
                            GDB-7G protector is a high-precision three-phase AC integrated electrical parameter monitoring and protection device.
It can display various power parameters of three-phase four-wire in Chinese, and automatically trip protection when the power grid fails
Lines and generator sets. With over...
 
             
                                         
                                            
 
                                            