During the operation of Qinshan CANDU Nuclear Power Plant,internal secondary distribution system encoun-tered override trip of power control center(PCC)ground protection,resulting in reduced reliability of the distribution sys-tem and the process system.On the basis of case analysis,combined with domestic design standards and peer experience,this paper gives solutions from the perspective of for the tuning of ground protection,and puts forward rational sugges-tions for the posterior type selection of unit equipment.
关键词
低压厂用配电系统/动力中心/电机控制中心/接地保护
Key words
internal secondary distribution system/power control center/motor control center/ground protection
维普
万方数据