【摘要】 在简介双级补偿大电流互感器和二次小电流校验法的基础上,给出了该电流互感器以二次小电流法测得误差与其真实误差的差别公式;并从理论推导和物理试验两方面证明了,该电流互感器二次绕组电流与补偿绕组电流之间的大小关系,在正常工作状态下与校验状态下并不相同。更多还原

【Abstract】 Introduce the principle of two-stage current transformer and the method of small secondary current,present the difference between the real error of two-stage current transformer and the error measured by the method of small secondary current.It’s analyzed that the ratio of secondary current to auxiliary current in the condition of working is different from that in the condition of verification.The conclusion is proved correct by the result of test.更多还原