Excitation and control system
　　SD9000 series low voltage integrated automatic control panel is the solution to automatic design for the low voltage generator sets of hydro power plant, and has reached the utmost national standard. The panel is equipped with primary circuit, monitoring, protection, synchronization, temperature sensing, and excitation. Etc. It can connect with the internet via the telecommunication port to achieve the automation of the equipment. Combined with the YWT governor, It can realize the purpose of unattended or few people on duty.
　　SD9000 series High voltage automatic control panel is designed and developed for the solution to automatic design of the high voltage generator sets of the hydro power plant. It adopts the method of using comprehensive control and protection device to centralized control the generator sets, replacing the method of separately control the generator sets by PLC, tachometer, and temperature data logger. It’s capable of automatic start and shut down, excitation regulation, economic operation, micro computer protection, automatic synchronization, digital display and etc, and it’s characterized by high integration density, simple structure, powerful function, easy operation, and convenient maintenance. It adopts up to date computer hardware, software, and telecommunication technology, and make the automation level parallel to the advanced level at home and abroad. After the system comes into use, it can realize the purpose of unattended or few people on duty.