IS200PDIOH1A
IS200PDIOH1A
IS200PDIOH1A
reliability requirements. In addition to realizing normal start-stop and operation operation, it is especially required to realize real-time display of various data and states under abnormal operation and accident state, and provide corresponding operation guidance and emergency treatment measures to ensure the automatic control of electrical system in the most safe and reasonable working conditions.
The electrical system shall be included in the scope of DCS monitoring
According to the operation of the unit and the characteristics of electrical control, in the application of the project will be used in the generator – transformer group and plant power supply and other electrical system control are included in the DCS monitoring.
All the electrical systems in the main plant from the booster station (excluding the booster station) to the power plant side are included in the DCS monitoring. The main systems are summarized as follows:
Generation group system (excluding the ventilation system of the transformer itself);
Generator excitation system;
High voltage factory power supply system (including normal switching of factory power supply);
Low voltage factory power supply system and 400VPC;
High voltage start/backup power supply system (shared by 2 machines);
Diesel generator set and security power supply (monitoring only);
Dc system and UPS system (monitoring only);
Automatic synchronous system;
Power plant quick cutting system.
Electrical main protection safety automatic device because of the requirements of DCS to achieve its function is still a certain degree of difficulty, and to increase considerable cost. In principle, DCS is not required to achieve its functions, still retain its device,
