TY - GEN
T1 - Influence of salt contamination on multi-factor corona ageing characteristics of HTVSilicone rubber insulating material
AU - Zhou, Run Dong
AU - Zhao, Lin
AU - Li, Yuan
AU - Zhang, Guan Jun
AU - Hao, Xiwei
AU - Wei, Bin
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/27
Y1 - 2016/12/27
N2 - Compared with traditional ceramic and glass insulators, aging phenomena of composite insulators is much more serious. High temperature, high humidity and heavy sea fog in coastal area pose great challenge to the operation of composite insulators. However, the effect of relatively complicated surrounding on composite insulator ageing is not clear yet. In this paper, a multi-factor aging system simulating costal climate is constructed, and the experimental parameters are set according to the condition in field. After the samples are aged in the system, comprehensive characteristics of aged HTV silicone rubber samples with different contamination grade and other conditions are measured, including the physical property such as hydrophobicity, the electrical property such as trap distribution and surface resistivity. To analyze the gradual changes of micro-surface condition, SEM are employed. Experimental results show that the salt contamination greatly affects the surface microstructure of HTV silicone rubber materials. Salt contamination has great influence on the loss of hydrophobicity, and with the aging time increasing, the static contact angle of four different samples showed a declining trend. Surface resistivity decrease with the development of corona aging. More contamination the sample has on its surface, lower the surface resistivity of the sample is. Moreover, with the samples aging, the trap density of aged samples with different salt contamination will increase finally.
AB - Compared with traditional ceramic and glass insulators, aging phenomena of composite insulators is much more serious. High temperature, high humidity and heavy sea fog in coastal area pose great challenge to the operation of composite insulators. However, the effect of relatively complicated surrounding on composite insulator ageing is not clear yet. In this paper, a multi-factor aging system simulating costal climate is constructed, and the experimental parameters are set according to the condition in field. After the samples are aged in the system, comprehensive characteristics of aged HTV silicone rubber samples with different contamination grade and other conditions are measured, including the physical property such as hydrophobicity, the electrical property such as trap distribution and surface resistivity. To analyze the gradual changes of micro-surface condition, SEM are employed. Experimental results show that the salt contamination greatly affects the surface microstructure of HTV silicone rubber materials. Salt contamination has great influence on the loss of hydrophobicity, and with the aging time increasing, the static contact angle of four different samples showed a declining trend. Surface resistivity decrease with the development of corona aging. More contamination the sample has on its surface, lower the surface resistivity of the sample is. Moreover, with the samples aging, the trap density of aged samples with different salt contamination will increase finally.
KW - component
KW - composite insulator
KW - comprehensive characteristics
KW - costal area
KW - multifactor corona ageing
KW - salt contamination
UR - https://www.scopus.com/pages/publications/85010384318
U2 - 10.1109/ICHVE.2016.7800842
DO - 10.1109/ICHVE.2016.7800842
M3 - 会议稿件
AN - SCOPUS:85010384318
T3 - ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application
BT - ICHVE 2016 - 2016 IEEE International Conference on High Voltage Engineering and Application
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 5th IEEE International Conference on High Voltage Engineering and Application, ICHVE 2016
Y2 - 19 September 2016 through 22 September 2016
ER -