500kV鹏城变电站技改中CT回路危险点分析及防范  

The control in advance and danger analysis existed in CT circuit in technological transformation of the 500 kV Pengcheng transformer substation

作　　者：董泰福[1,2] 宗秀红[3] 

机构地区：[1]广东电网公司 [2]广东省电力工业学校,广东广州510520 [3]广东电网公司深圳供电局,广东深圳518020

出　　处：《电力系统保护与控制》2009年第23期159-161,共3页Power System Protection and Control

摘　　要：为配合500kV鹏城变电站一次设备的更换,二次回路需要执行必要的安全措施。针对二分之三接线方式下一次设备更换过程中和一次设备更换后二次回路的验收中CT回路可能存在的危险点,以及改造后送电过程中CT回路可能发生的危险点,进行了详细的阐述,并给出了相应的防范措施,确保二次回路安全措施的执行全面到位,对二分之三接线方式下二次回路的运行维护具有一定的指导意义。In order to coordinate the equipment＇s replacement of the 500kV Pengcheng substation, some necessary security measures need to be carried out for the secondary circuit. For the 3/2 wiring way, the danger points of the CT secondary circuit, which may be existed in the course of the equipment replacement or after the equipment replacement, are detailedly analyzed in this paper. Also, the corresponding preventive measures are put forward to ensure that the security measures of the secondary circuit are comprehensively executed, which has some guiding sense for the operation and maintenance of the secondary circuit under the 3/2 wiring way.

关 键 词：CT回路 二次回路 3/2接线方式 事故预防 500 KV变电站 母线保护 

分 类 号：TM63[电气工程—电力系统及自动化]