高精度电流传感器研制

提出了一种用于绝缘在线监测技术的新型高精度电流传感器的研究方法。该方法旨在普通电流传感器基础上采用电流补偿方法,使传感器工作在磁平衡状态,从而消除电流传感器误差,提高传感器测试精度。实验证明这种方法不仅可行,而且具有补偿效果明显、测试精度高等特点,为进一步提高绝缘在线监测测试精度和稳定性提供了一条新的途径。

A new method of highly accurate current sensor used in on - line insulation monitoring system is presented. In this way, current sensor can work accurately and without any error based on a magnetic force balance by compensating the current. The test results of this method show that it is not only feasible, but also has a remarkable compensation effect and a higher accuracy. It gives a new way to enhance the accuracy and stability of on- line insulation monitoring system.