Current transformer secondary connecting line monitoring system and method for lightning arrester monitoring

• Main Authors: LI XIAOBIN, REN JUN, FANG XIANKUN, JI XIANG, YANG PENG, SUN YUE, WANG BAOQI, NIE DESHUN, SU JIANFEI, ZHOU NAN, DONG FUGUANG, JIA XIAOZHEN, QIN MIAOHUA, ZHAO ZHONGHUA, LYU XIAO, WANG XIAOTONG, LUO ZHONGJIE
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a current transformer secondary connecting line monitoring system and method for lightning arrester monitoring, and belongs to the technical field of lightning arrester on-line monitoring. The current transformer secondary connecting line monitoring system comprises a memory and a CPU (central processing unit); the CPU is connected with the memory through a signal control line, and the CPU is connected with the power switch control circuit through a power on-off control signal line; the signal power supply is connected with the power switch control circuit; the lightning stroke sampling loop comprises a current transformer, and the current transformer comprises a current transformer secondary loop; a monitoring point is arranged at the connection position of the dotted terminal of the secondary circuit of the current transformer and the sampling resistor R2; and the CPU acquires monitoring point signals through the signal sampling circuit within the conduction time. The system has the