链形结构电流互感器一次电流在环形铁心中产生的磁场计算

Calculation of Magnetic Field Produced in Ring Core by Primary Current of Chain-Type Current Transformer

介绍了链形结构电流互感器一次导体中的电流在二次绕组环形铁心中产生的磁感应强度的计算方法 ,并推导出计算公式 ,给出了改善铁心中磁场分布的方法 。

This paper introduces a calculating method of magnetic induction intensity which is produced in ring core of secondary winding by current in chain-type current transformer primary conductor. Its calculating formula is derived. A method improving magnetic field distribution in core is given. Applicability of the method is verified by the testing results of the products.