Surface flashover in 50 years: Theoretical models and competing mechanisms

Z Li, J Liu, Y Ohki, G Chen, H Gao, S Li - High Voltage, 2023 - Wiley Online Library
Surface flashover is a devastating electronic avalanche along the gas–solid interface when
a high electric field is applied, which is a potential issue that threatens the safe operations of …

China's 10-year progress in DC gas-insulated equipment: From basic research to industry perspective

C Li, C Zhang, J Lv, F Liang, Z Liang, X Fan… - IEnergy, 2022 - ieeexplore.ieee.org
The construction of the future energy structure of China under the 2050 carbon-neutral
vision requires compact direct current (DC) gas-insulation equipment as important nodes …

Surface charge migration and dc surface flashover of surface-modified epoxy-based insulators

C Li, J Hu, C Lin, B Zhang, G Zhang… - Journal of Physics D …, 2017 - iopscience.iop.org
Epoxy-based model insulators were manufactured and fluorinated under a F 2/N 2 mixture
(12.5% F 2) at 50 C and 0.1 MPa for 15 min and 60 min. Surface charge accumulation and …

Understanding surface charge accumulation and surface flashover on spacers in compressed gas insulation

C Li, C Lin, B Zhang, Q Li, W Liu… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
Surface charges have the effect of changing the electric field over spacers in compressed
gases, which may affect the stable operation of gas insulated equipment and could possibly …

Temperature dependent surface potential decay and flashover characteristics of epoxy/SiC composites

BX Du, HC Liang, J Li, C Zhang - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
GIS spacers made of epoxy resin always suffer from the flashover due to surface charge
accumulation. Therefore, it is important to seek a new method to improve the performance of …

Review of interface tailoring techniques and applications to improve insulation performance

M Zhu, J Xue, Y Wei, G Li, G Zhang - High Voltage, 2022 - Wiley Online Library
Interfaces between different materials, for instance, electrode–dielectrics and
vacuum/air/SF6‐insulators and oilpaper, are universal in high‐voltage insulation systems …

Trap distribution and dielectric breakdown of isotactic polypropylene/propylene based elastomer with improved flexibility for DC cable insulation

Y Gao, J Li, Y Yuan, S Huang, B Du - IEEE Access, 2018 - ieeexplore.ieee.org
In this paper, we report on electrical and mechanical properties of isotactic polypropylene
(PP) blended with polyolefin elastomer (POE) and propylene-based elastomer (PBE) …

Dielectric relaxation and trap-modulated DC breakdown of polypropylene blend insulation

Z Li, Z Zhong, B Du - Polymer, 2019 - Elsevier
This work focuses on the dielectric relaxation of isotactic polypropylene (iPP), syndiotactic
polypropylene (sPP) and atactic polypropylene (aPP) blended insulation. The relationship …

Accelerated aging effect on high temperature vulcanized silicone rubber composites under DC voltage with controlled environmental conditions

B Mehmood, M Akbar, R Ullah - Engineering Failure Analysis, 2020 - Elsevier
Silicone rubber (SiR) insulators are considered as promising alternatives to conventional
ceramic insulators for high voltage transmission networks. However, aging of SiR insulators …

Surface charge behavior of silicone rubber/SiC composites with field-dependent conductivity

BX Du, ZR Yang, ZL Li, J Li - IEEE Transactions on Dielectrics …, 2017 - ieeexplore.ieee.org
High temperature vulcanized (HTV) silicone rubber (SiR) is widely used as HVDC cable
accessory insulation considering its outstanding electrical properties along with elasticity …