Low-frequency high-precision standard voltage transformer magnitude traceability method and system

• Main Authors: ZHU HUAN, ZHOU QI, SUN JUN, LI SHUN, LU JIAQI, JIA YANFANG, ZHUANG JUN, LU CHUNGUANG, DING XUNAN, XIAO TAO, KONG XIANGFENG, LIU WEI, HUANG TAO, SUN JIANQIAO, LI XIONG, ZHANG WEIHUA, WEI LIANGSEN, XU CAN, ZHOU YI, XU LINGJIE, QI YUNFEI, GUO PENG, LI PENGGUI, CHEN XIAO, FU YUEJIANG
• Format: Patent
• Language: Chinese; English
• Published: 22.11.2022
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention belongs to the technical field of standard voltage transformer error measurement, and particularly relates to a high-precision standard voltage transformer magnitude traceability method and system. In order to overcome the defects that no standard voltage transformer exists in the prior art and quantity value tracing cannot be carried out on the standard voltage transformer, the invention adopts the following technical scheme: the high-precision standard voltage transformer quantity value tracing method comprises the following steps of: adjusting an inductive voltage divider to enable a first quantity value transmission standard to be the same as a transformation ratio of a voltage transformer to be measured; adjusting the low-voltage arm capacitance value of the second transmission standard to enable the error between the two to meet the requirement; and keeping the state of the second magnitude transmission standard unchanged, outputting voltage by the power supply, and calculating an error be