This paper points out it is very hard torun over a long period of time at the 0.2 degree of accuracy for the coreof Rogowski coil current transformer.

• 指出；按目前的器件水平和加工工艺水平条件；使罗氏线圈电流互感器长期满足0.；2级的实用测量精度要求是非常困难的。