The high and low pressure valves, their hydraulic control logic circuit, the problems and their countermeasure in bypass control system in Xisaishan Power Plant were analyzed in brief.

• 简要分析了高、低压旁路阀门、油站控制的逻辑以及旁路控制系统在西塞山发电厂的运行中出现的问题及其解决措施。