单台辅变运行对机组的影响

Single auxiliary operation of the crew on the impact

秦二厂1/2号机组在正常运行时,由发电机经厂变向厂内的设备供电,辅变处于热备用状态,当主电网或者厂内的变压器(主变、厂变)故障时,则四条厂用6.0k V母线将会自动切向辅变供电,机组进入事故规程。在核电厂技术规格书中仅对两台辅变不可用做出明确的规定,并未对单台辅变的不可用做出明确的规定,本论文详细分析当机组出现主变向辅变切换的情况下,单台辅变运行将会做机组产生的影响。

During the normal operation of No.1/2 plant of Qin Plant,the power supply in the plant is changed from generator to plant.The auxiliary transformer is in hot stand-by state.When the main power grid or the transformer(main transformer,factory transformer)Failure,then the four plants with 6.0kV bus will be automatically tangential auxiliary power supply,the crew into the accident rules.In the technical specification of nuclear power plant,only two sets of auxiliary variable are not available to make a clear provision,not a single auxiliary variable is not available to make a clear provision,the paper detailed analysis of the main unit when the auxiliary transformer switch The case of a single auxiliary operation will be the impact of generating units.