整体检定现场电流互感器检定装置的探讨 .pdfVIP

学兔兔 总第49卷 第554期 电测与仪表 Vo1．49 NO．554 2012年 第2期 ElectrjcaJ Measurement Instrumentation Feb。2012 整体检定现场电流互感器检定装置的探讨 赵修民，赵屹涛，韩海洲，闫宪峰 (山西省机电设计研究院，太原030009) 摘要：在分析各种类型现场电流互感器榆定装置的数学模型基础上，探讨了其整体检定的有关问题。提出了对 其整体检定用的标准器的要求：应适用于各类型的检定装置，即标准器既是电流互感器又是电压互感器，其二 次负荷为空载或连接导线电阻0．021)，准确级为0．01s级，在最大磁导率下其一匝感应电势应不低于0．06V。整 体检定的条件应尽可能符合装置检定现场电流互感器的实际工作状态，即标准器应在无补偿和匝数补偿下分 别检测。唯有如此，整体检定结果A‘准确可靠。 关键词：电流互感器；检定装置；整体检定；数学模型；标准器 中图分类号：TM452 文章标识码：B 文章编号：1001—1390(2012)02—0037—03 Research on the Whole Certification of the Locale Device Used to Test Current Transformer ZHA()Xiu—min，ZHAO Yi—tao，HAN Hai—zhou，YAN Xian-feng (Shanxi Design and Research Institute of Mechanical and Electrical Engineering，Taiyuan 030009，China) Abstract：This paper analyzes Ihe ma!hematical models of various types of locale current transformer calibration equipments．and explores issues related t0 the whole calibration．The requirements of the standard device are proposed on the whole calibration：the standard device should be applied to all types of calibration equipments，i．e．the standard device is both the current transformer and the voltage transformer。the secondary burden is no—load or the resistance of connection wires is 0．02 the accuracy class is not lower than 0．0 1 S。in the case of maximum permeability．the one—turn inductive e．m．f should not be less than 0．06V．In the whole calibration．the working conditions should be as closely as possible the actual working conditions ot’loeale current transformer．i．e．the standard device should be used to work under no compensation and turn compensation．Thus．the whole calibration iS accurate and reliable．