本文介绍了一种既节省燃油和时间,又可以延长机组寿命的调速、超速试验新设计——分裂轴承箱增设调速电机,按照这一设计,机组停机后,可以在不用启动机组的情况下直接做调节保安系统的性能试验,且可以保证达到试验的目的。这一试验方法的实施,将给电站机组,尤其是大型机组带来明显的经济效益。 This paper introduces a new design of speed control and speeding test that can save fuel and time as well as prolong the life of the unit. In this case, an additional speed regulating motor is added to the split bearing box. According to this design, after the unit is stopped, the unit can be started without starting the unit Under the direct regulation of security system performance test, and can guarantee to achieve the purpose of the test. The implementation of this test method will bring obvious economic benefits to power plant units, especially large-scale units.