摘要详情

ID / 提交时间

106 / 2021-10-25 10:50:27

标题

Effects of Load on CVT Transient Response

关键字

Capacitive Voltage Transformer (CVT),Scattering Parameter,Transient Overvoltage,Load Influence

主题及专题

High voltage and insulation technology > High voltage testing and measurement

状态

终稿

作者

Fei Pan / State Grid Sichuan Electric Power Research Institute

Zhou Mu / State Grid Sichuan Electric Power Research Institute

Tongtong Wang / Shandong Taikai Instrument Transformer Co., Ltd.

Bo Jiang / Metering Center of State Grid Sichuan Electric Power Company

Guosong Lin / School of Electical Engineering, Southwest Jiaotong University

摘要

In this paper, the influence of load on the transient characteristics of capacitive voltage transformer is studied. The CVT secondary side generally has four windings, and the different loads of each winding on the secondary side will directly cause the CVT measurement error. Under the same transient overvoltage condition of the CVT input, the influence of different loads on the secondary output waveform of the CVT is measured, and a network analyzer is used to measure the scattering parameters in each case and convert it into a transfer function to analyze the results. The results show that at frequencies under 9kHz-50kHz, the measured waveform of the secondary side decreases with the increase of the load, and the change of cosφ=1 is more obvious than the change of cosφ=0.8. At the same time, the transfer function obtained by the measurement and calculation also decreases with the increase of the load.

重要日期

会议日期

07月11日

2023

至

08月18日

2023
11月10日 2021

初稿截稿日期
12月10日 2021

注册截止日期
12月11日 2021

报告提交截止日期

主办单位

IEEE IAS

承办单位

IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST