目 录
1 范围····························································································一 (1)
2 概 述·································································。··························一 (1)
3 计量性能要求··············································································…… (1)
3.1 准确度级别··············································································…… (1)
3.2 主要功能···························································，·····················…… (1)
3.3 灵敏度···················································································…… (2)
3.4 标准偏差·····················……‘·····················································…… (2)
4 通用技术要求··············································································…… (2)
4.1 外观·······················································································…… (2)
4.2 绝缘、耐压··············································································…… (2)
5 计量器具控制··············································································…… (2)
5.1 检定条件·················································································…… (2)
5.2 检定项目·················································································…… (3)
5.3 检定方法·················································································…… (3)
5.4 检定结果处理···········································································…… (6)
5.5 检定周期·················································································…… (6)
附录A 数显式变压比电桥证书数据格式 ········································，····…… (7)
附录B QJ一24型变压比电桥证书数据格式·............................................... (9)
附录C QJ一35型变压比电桥证书数据格式 ··········································…… (11)
附录D 数显式变压比电桥原始记录格式 ········································...··…… (13)
附录E QJ一24型变压比电桥原始记录格式 ··········································…… (15)
附录F QJ一35型变压比电桥原始记录格式 ··········································…… (18)
变压比电桥检定规程
1 范围
本规程适用于指针式和数显式变压比电桥、变压器变比测试仪、匝比测试仪 (以下
统称为变压比电桥)的首次检定、后续检定和使用中检验。
2 概 述
变压比电桥是测量变压器变压比的专用仪器，可用来测量单相、三相变压器及电压
互感器的变比值和变比误差值。
变压比电桥的结构型式概括地说有两种:即指针式手动电桥和数显式自动电桥。它
们的测量功能基本相同，都具有测量变比值、变比误差值和连接组等功能。
3 计，性能要求
3.1 准确度级别
变压比电桥的准确度级别分为0.05, 0.1, 0.2三个级别，各级别最大允许误差不
得大于表 1规定，允许仪器按不同的变比范围给出不同的准确度级别。
