The failure of valve opening sensor would cause valve management of DEH system working confusedly,and result in large scale change of turbine power in the case of governing stage pressure loop idle.

• DEH系统中阀位传感器的故障会给阀门管理带来混乱，特别在调节级压力回路未投入的情况下会引起汽机功率的较大变化。