JJG 1021—2007
电力互感器
Instrument Transformers in Power System
2007-02-28 发布
2007-05-28 实施
目 录
1范围..................................(1)
2 引用文献...............................(1 )
3概述..................................(1 )
4：计量性能要求..............................(2)
4.1准确度等级.............................(2)
4.2基本误差..............................(2 )
4.3稳定性...............................(3)
4.4运行变差............................(3)
4.5磁饱和裕度.............................(4 )
5通用技术耍求..............................(4 )
5.1铭牌.和标志......................... (4)
5.2 绝缘...............................(4 )
6计星器具控制............................(4)
6.1 检定条件.............................(4 )
6.2检定项目..............................(5 )
6.3检定方法..............................(6 )
6.4检定结果的处理...........................(J3)
6.5检定周期..............................(14)
附录A 检定原始记录及检定证书内页格式..................(15)
附录B.电流互感器开路退磁法.......................(23)
附录C用等安匝法测忧大也流互感器误龙................(24)
附录D 电压互感器负荷误弟曲线外推法 ...............(25)
附录E邻近载流导体对互感器诙关的影响...................(27)