Development of a Calculable Current Transformer with Wide Ratio Error of - 9 ％ to + 11 ％ and its Application

摘要：

Current transformers (CT) are used for precise high current measurement in power industries. A calculable CT with nominal ratio error of –9 ％ to +11 ％ has been developed on basis of theoretical calculation of ratio error by the number of windings. The developed CT with wide ratio error (WRE CT) can be used to evaluate the linearity and accuracy of the CT comparator by comparing both the theoretical and experimental values of the WRE CT. The WRE CT has been applied for the on-site calibration and correction of the CT comparator with wide ratio error range of – 9 ％ to + 11 ％.

关键词： calculable current transformer (CT) turn ratio error self ratio error CT with wide ratio error CT comparator on-site calibration

作者: Sung-Won Kwon Jae Kap Jung Sang-Hwa Lee Mun-Seog Kim

作者单位: Korea Research Institute of Standards and Science, Daejon 305-340, Korea

会议类型: 国际会议

会议名称: The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)

会议地点: 沈阳

会议语种:英文

页码: 1-3

在线出版日期: 2009-07-05（万方平台首次上网日期，不代表论文的发表时间）