Study on Logic Optimization of Generator Stator Water Cooling System
This paper mainly studies the logic optimization of water cooling system for the stator in Tianwan nuclear pow-er plant phase Ⅱ project.The system adopts a closed-loop framework and is equipped with two AC motor-driven centrifu-gal water pumps,arranged in parallel,with one in use and one as backup during normal operation.The system is con-figured with a water interruption prevention logic to avoid overheating of the generator stator coils,and also has a backup automatic switch logic to automatically start the backup pump.The paper proposes an optimization scheme through in-depth analysis on system flow,protective logic configuration,existing problems,and logic optimization,and verifies its effectiveness using experiments.
generatorstator water cooling systemlogic optimizationwater interruption preventionbackup automatic switch logic