TY - GEN
T1 - The breakdown characteristics of oil-paper insulation in converter transformers
AU - Zuo, Kun
AU - Shen, Wei
AU - Cui, Huize
AU - Zhou, Guangming
AU - Wang, Weiwang
AU - Li, Shengtao
N1 - Publisher Copyright:
© 2020 Institute of Electrical Engineers of Japan. All rights reserved.
PY - 2020/9/13
Y1 - 2020/9/13
N2 - Oil-paper insulation is the most widely used insulation material in converter transformers, and its safe and reliable operation is one of the important factors to ensure the normal operation of converter transformers. In the long-term working process, the formation and accumulation of space charge in the oil-paper insulation will affect the oil-paper interfacial characteristics and the internal electric field distribution, and will affect the breakdown characteristics. Therefore, it is of practical significance to conduct in-depth study on the charge transport characteristics and breakdown characteristics and mechanism of oil-paper insulation under the influence of space charge. Based on the study of oil-paper insulation breakdown characteristics, this paper systematically studies the space charge characteristics, oil-paper interface characteristics of oil-paper insulation and its breakdown characteristics in different states. Through this research, according to the breakdown strength of oil-paper insulation under different conditions, it can provide support for the design of UHV converter transformers, provide experimental basis for improving the breakdown field strength of oil-paper insulation, and provide a deeper understanding of the solid-liquid interface characteristics based on theoretical study.
AB - Oil-paper insulation is the most widely used insulation material in converter transformers, and its safe and reliable operation is one of the important factors to ensure the normal operation of converter transformers. In the long-term working process, the formation and accumulation of space charge in the oil-paper insulation will affect the oil-paper interfacial characteristics and the internal electric field distribution, and will affect the breakdown characteristics. Therefore, it is of practical significance to conduct in-depth study on the charge transport characteristics and breakdown characteristics and mechanism of oil-paper insulation under the influence of space charge. Based on the study of oil-paper insulation breakdown characteristics, this paper systematically studies the space charge characteristics, oil-paper interface characteristics of oil-paper insulation and its breakdown characteristics in different states. Through this research, according to the breakdown strength of oil-paper insulation under different conditions, it can provide support for the design of UHV converter transformers, provide experimental basis for improving the breakdown field strength of oil-paper insulation, and provide a deeper understanding of the solid-liquid interface characteristics based on theoretical study.
KW - Breakdown strength
KW - Converter transformers
KW - Electric field
KW - Oil-paper
UR - https://www.scopus.com/pages/publications/85099318669
M3 - 会议稿件
AN - SCOPUS:85099318669
T3 - Proceedings of the International Symposium on Electrical Insulating Materials
SP - 537
EP - 540
BT - Proceedings of 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
PB - Institute of Electrical Engineers of Japan
T2 - 2020 International Symposium on Electrical Insulating Materials, ISEIM 2020
Y2 - 13 September 2020 through 17 September 2020
ER -