JJG（冀）3009-2020
电子式电流互感器
Electronic current transformer
2020-04-30 实施
2020-03-26发布
目 录
1范围.............................................1
2引用文件........................................................1
3术语和定义...............................................1
3.1稳态一次电流............................................1
3.2稳态二次输出.....................2
3.3电流（比值）误差...............................................3
3.4相位差...............................................3
3.5 额定延迟时间 ...............................................4
3.6额定相位偏移 ..................................4
3.7相位误差.....................................4
3.8对时误差......................................4
3.9守时误差................................................4
4概述.........................................................5
5计量性能要求.............................................5
5.1 准确度等级和基本误差限值......................................,5
5.2测量重复性 ..............................................6
5.3 短时稳定性...............................................6
5.4 周期稳定性...................................................6
6通用技术要求....................................................6
6.1 铭牌和标志.................................................6
6.2绝缘水平............................................6
6.3报文完整性.....................................................6
6.4 对时误差...............................................7
6.5 守时误差................................................7
7计量器具控制.........................................7
7.1 检定条件...........................................7
7.1.2.4 电子式互感器校验装置.................................8
7.2 检定项目............................................8
7.3检定方法...............................................9
7.4 检定结果的处理............................................14
7.5检定周期.....................................................14
附录A..................................................15
附录B...................................................18
附录C........................................................20