集成于隔离断路器的电子式电流互感器  

Electronic Current Transformer Integrated to Disconnecting Circuit Breaker

作　　者：罗苏南[1] 卢为[1] 须雷[1] 胡桂平[1] 石亲民[1] 黄德祥[1] 

机构地区：[1]南京南瑞继保电气有限公司,南京211102

出　　处：《高压电器》2013年第12期75-79,87,共6页High Voltage Apparatus

摘　　要：提出并实现了一种可与隔离断路器集成为一体的电子式电流互感器新型结构,介绍了产品的原理、结构及性能测试试验情况。产品利用空心线圈传感保护电流信号、低功率CT传感测量电流信号、远端模块就地采集空心线圈及低功率CT的输出信号、悬式光纤绝缘子保证绝缘并传输信号,具有绝缘结构简单可靠、体积小、质量小、测量准确度高、动态范围大、暂态特性好等特点。性能测试试验表明产品的测量准确度、温度特性及抗电磁干扰特性等关键性能满足入网运行要求。产品与隔离断路器集成为一体,能有效减小变电站的占地面积,即将在中国新一代智能化变电站使用。A novel electronic current transformer which can be integrated to disconnecting circuit breaker is put forward and manufactured firstly. Introduction is made to the principle, structure and tests about the product in this paper. This product use the LPCT sense measurement current signals sense protection current signals, the remote module sample the output signals of the , the air core coil LPCT and air core coil, the suspension fiber insulator ensure insulation and transmit signals. This product has the characteristics of simple insulation structure, small volume, light weight, high accuracy, large dynamic range, and good transient performance. Test results show that the key performances of the product, such as measurement accuracy, temperature cycle and anti-EMI, meet the network operational requirements. This product integrates with disconnecting circuit breaker, which can effectively reduce the substation area, will be used in Chinese new generation smart substation.

关 键 词：隔离断路器 电子式电流互感器 低功率CT 空心线圈 

分 类 号：TM452[电气工程—电器]