This paper also tested each model and system - the second loop of qinshan nuclear power station ( the second term ) ， computed the balance point ， tested the performance of step disturbance and runback loads for system ( no adding adjustment system ) ， analyzing the factors effecting the first tiptop rotate speed of turb and time which the rotate speed reach the tiptop 在仿真模型上，完成了稳态计算、系统阶跃扰动试验、甩负荷试验(未加调节系统)等测试，主要监控和分析了汽轮机动态特性中两个重要参数：汽轮机第一飞升转速、飞升时间。
