针对下花园发电厂200 MW机组汽轮机中压主汽阀在活动试验时关闭后无法开启的问题，技术人员根据现场情况进行了研究、分析，排查了可能造成问题的各种原因，最终解决了该问题，保障了机组的安全、稳定运行，对同类机组的维修具有参考意义。%Under pressure for 200 MW Steam Turbine Power Plant Garden in the main steam valve in the event the test can’t be opened after the close of the problem, according to the site technical staff conducted a research, analysis, investigation of the problem may cause a variety of reasons, the ultimate solution the problem, to protect the safety of the unit, stable operation, a reference for the maintenance of the same unit.
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