摘要
在电压互感器传统测量方法的基础上,参照电压互感器误差的经典公式,提出了一种测量高压电压互感器误差的现场校验方法,研究了其测试原理。对难以测量的漏抗,建立了有效的计算数学模型。并在此基础上进行了电压互感器测试仪的硬件、软件设计。在很大程度上提高了测试准确度,测量准确度可以达到检定规程要求。实际运行表明,该测试仪具有很好的精确度和稳定性。
Verifying method for high-voltage potential transformer is proposed in this paper on the basis of traditional measuring methods and the classic formula of potential transformer error. The measuring theory is also studied. Effec- tive computational mathematical model is established for the measurement difficulty of leakage reactance. Hardware and software design of potential transformer measuring instrument are given as well. The accuracy of measurement is improved and can meet the requirement of verification regulation. The practical application shows that the measuring instrument has good accuracy and stability.
出处
《电测与仪表》
北大核心
2014年第11期1-5,共5页
Electrical Measurement & Instrumentation
关键词
电压互感器
校验
比差
角差
信号调理
potential transformer, verify, ratio error, angle error, signal processing
