摘要
研究了一种新型交流大电流测量标准装置 .装置基于交流比较仪原理 ,采用多通道开口级联技术 ,用于在线测试及校验发电机出口电流互感器 .电流比较仪的准确度优于 0 .0 4% ,开口重复性误差小于 0 .0 0 7% ,防磁能力大于 0 .0 1T .
On the principle of current comparator, a fire new standard measurement device of heavy AC is developed that can be used for on site test and calibration of the output CT of ac generators. Testing of the comparator indicates that its accuracy is better than 0.04?%, including the error of ratio and phase angle. The error in repeatability of openable core is 0.007?%. The ability of resistance to external magnetic field is greater than 0.01?T.
出处
《华中理工大学学报》
CSCD
北大核心
2000年第6期40-42,共3页
Journal of Huazhong University of Science and Technology
基金
国家自然科学基金资助项目! (5 98770 0 6 )
