污水源热泵机组启动方式探讨  

Discussion on Starting Mode of Sewage Source Heat Pump Unit

作　　者：葛云启 刘睿哲 贺佳佳 

机构地区：[1]青岛能源设计研究院有限公司,山东省青岛市266000

出　　处：《建筑电气》2016年第4期51-56,共6页Building Electricity

摘　　要：通过对某一污水源热泵启动过程中断路器跳闸情况的研究,分析跳闸原因,发现开式星-三角降压启动方式在星形转三角形时二次冲击电流过大,提出采用闭式星-三角降压启动方式,减少在星形转三角形时的二次冲击电流,起到改善电网及减少设备危害的作用。On the basis of research on breaker tripping during starting of one sewage source heat pump,tripping causes are analyzed,and then it is found that secondary impulse current is too high for open star-delta reduced voltage starting when the star starting is switched to the delta starting. This paper suggests the closed star-delta reduced voltage starting to reduce the secondary impulse current at switching,improve electric grid and relieve damages to equipment.

关 键 词：热泵机组 断路器跳闸 启动方式 降压启动 开式星-三角启动 闭式星-三角启动 过渡电阻 浪涌电流 

分 类 号：TM306[电气工程—电机]