一种新型的交流大电流测量标准装置  

A Fire-New Standard Measurement Device of Heavy AC Current

作　　者：任士焱[1] 张智杰 刘晓军 

机构地区：[1]华中理工大学电力工程系 [2]武汉低压电器检测站

出　　处：《华中理工大学学报》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 )

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.

关 键 词：交流大电流 多通道技术 测量标准装置 在线测试 

分 类 号：TM933.13[电气工程—电力电子与电力传动]