安科瑞 师晴晴
江苏安科瑞电器制造有限公司 江苏江阴
1.项目概述 Project overview:
做锂电池的公司，需要使用直流霍尔传感器将直流电流传输到4-20mA模拟信号输出。客户在确认了输入输出和工作电源后，选择了AHKC-EKA和AHKC-EKAA。
The company that do lithium batteries need to use DC Hall sensors to transmit DC current to the 4-20mA analog signal output. After confirming the input and output and working power, the customer chose AHKC-EKA and AHKC-EKAA.
2.开口式霍尔传感器优点Advantages of open type Hall sensor
与传统直流电流计量一般采用分流器或互感器测量方法相比，开口式霍尔传感器具有以下优点：
1）原边副边绝缘强度高，可达AC 12kV隔离；
2）无插入损耗；
3）动态性能好：响应时间小于20us速度di/dt高于20A/us
4) 安装时无需拆卸原边电缆或母排，特别适用于不允许断电设备的改造施工。
Compared with the traditional DC current measurement method generally adopted by shunt or transformer, the open-type Hall sensor has the following advantages:
1) High insulation strength of primary side and secondary side, up to AC 12KV isolation;
2) No insertion loss;
3) Good dynamic performance: the response time is less than 20uS and the tracking speed Di /dt is higher than 20A/ uS
4) There is no need to disassemble the original side cable or bus during installation. It is especially suitable for the transformation and construction of equipment that is not allowed to lose power.
3.产品选型Product Selection
4.应用Application
霍尔电流传感器主要应用在工厂改造直流配电系统中，如电厂直流电源系统改造、光伏，UPS,电机系统等，它能将系统中原边直流电流信号转换成为标准DC± 5V或4-20mA输出，起到了监测和电气隔离作用，可与多回路监控仪表或其他电气测量仪表配套使用。
Hall current sensor is mainly used in factory transformation of DC power distribution system, photovoltaic, UPS, motor system, etc. It can convert the primary DC current signal in the system into a standard DC ± 5V or 4-20mA output, which plays a role in monitoring and electrical isolation , It can be used with multi-loop monitoring instruments or other electrical measuring instruments.
5 .结论Conclusion
开口式霍尔电流传感器因其结构简单、安装方便、运行可靠等良好的适用性，在直流系统应用中发挥很大的作用。
Open-end Hall current sensor plays an important role in the application of DC system because of its simple structure, convenient installation, reliable operation .
参考文献 Bibliography
1.Solutions For Enterprise Micro-grid System 2021.04
