基于半绝缘电压串联加法的工频电压比例自校系统  

Power Frequency Voltage Ratio Standard Self-calibration Based on Semi-insulating Voltage Series Summation

作　　者：殷小东[1] 周峰[1] 雷民[1] 章述汉[1] 胡宗泉[1] 

机构地区：[1]国网电力科学研究院,武汉430074

出　　处：《电测与仪表》2010年第11期27-31,共5页Electrical Measurement & Instrumentation

摘　　要：为了提升110kV工频电压比例标准自校系统国家标准的准确度等级,使其满足电网快速发展和开展0.005级及以下准确度级别电压互感器的检定/校准工作的需求,研究并提出了半绝缘互感器电压串联加法溯源线路。通过对半绝缘和全绝缘互感器电压串联加法线路数学模型误差的分析比较,得到基于半绝缘互感器电压加法的自校系统准确度等级更高,并具有很好的开放性。试验结果表明,新自校系统达到了预期的技术指标。In order to study and improve the level of the 110kV frequency voltage ratio standard self-calibration system to meet the requirement of both the rapid development of power grid and voltage transformer test/calibration below 0.005 level,a traceability method based on semi-insulating voltage series summation is proposed.By analyzing the error of the mathematical models based on between the semi-insulating and fully insulating voltage series summation,the analysis indicates that the self-calibration system based on semi-insulating voltage series summation has both higher degree of accuracy and opening with great flexibility.The tests show that new self-calibration system achieves the desired specification.

关 键 词：自校系统 溯源 半绝缘 电压串联加法 电压互感器 

分 类 号：TM933[电气工程—电力电子与电力传动]