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切换装置设计的基本原则是尽量减小切换过程产生的冲击电流,因此最主要且最理想的是快速切换,所以机组正常起停的切换以及故障时的切换必须首先采用快速切换,除非快切失败,才继续执行备用切换模式。
The basic principle of the switching device design is to minimize the inrush current generated by the switching process. Therefore, the most important and ideal switching is fast switching between the normal starting and stopping of the generating unit and the switching of the fault must firstly adopt the fast switching unless the fast-fail fails , Continue to perform standby switching mode.