TY - GEN
T1 - Study on the insulation properties of PET materials for SF6 gas insulated transformer
AU - Wang, Qian
AU - Li, Quanhao
AU - Ren, Zhigang
AU - Zhang, Daning
AU - Zhang, Guanjun
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - In this paper, the thermal aging characteristics of winding insulation material PET film in SF6 gas atmosphere are studied for the aging diagnosis of SF6 gas-solid composite insulated transformers. We abtained the evolution law of electrical and physical parameters and extracted typical characteristic quantities, which provide a theoretical basis for the aging state assessment of gas transformers. Firstly, accelerated thermal aging experiments were conducted on 6020 PET films, and then frequency domain dielectric spectroscopy (FDS), differential scanning calorimetry (DSC) and tensile tests were used to examine the aging characteristics of PET materials with different aging degrees. It was found that the overall dielectric loss of PET films increased and then decreased as the aging level increased, and tensile strength gradually decreased.
AB - In this paper, the thermal aging characteristics of winding insulation material PET film in SF6 gas atmosphere are studied for the aging diagnosis of SF6 gas-solid composite insulated transformers. We abtained the evolution law of electrical and physical parameters and extracted typical characteristic quantities, which provide a theoretical basis for the aging state assessment of gas transformers. Firstly, accelerated thermal aging experiments were conducted on 6020 PET films, and then frequency domain dielectric spectroscopy (FDS), differential scanning calorimetry (DSC) and tensile tests were used to examine the aging characteristics of PET materials with different aging degrees. It was found that the overall dielectric loss of PET films increased and then decreased as the aging level increased, and tensile strength gradually decreased.
KW - Aging characteristics
KW - FDS
KW - GIT
KW - Physical and chemical properties
KW - Polyester material
UR - https://www.scopus.com/pages/publications/85143991117
U2 - 10.1109/ICHVE53725.2022.9961661
DO - 10.1109/ICHVE53725.2022.9961661
M3 - 会议稿件
AN - SCOPUS:85143991117
T3 - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
BT - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022
Y2 - 25 September 2022 through 29 September 2022
ER -