Results 51 to 60 of about 7,424,509 (170)

Research Progress in Treeing Phenomena of Polypropylene Insulation Materials

High Voltage, EarlyView.
ABSTRACT Polypropylene (PP) is increasingly utilised in high‐voltage systems due to its superior electrical and thermal properties. However, electrical treeing poses a significant threat to its long‐term reliability, potentially leading to insulation failure.
Boxue Du, Heyu Wang, Zhonglei Li
wiley   +1 more source

Live‐Line Work on High‐Voltage Transmission Overhead Lines: From FRP Flashover to Air‐Gap Breakdown Physics and Emerging Technologies

High Voltage, EarlyView.
ABSTRACT This paper presents a comprehensive review of live‐line work on high‐voltage transmission overhead lines, with a focus on insulation performance, air‐gap breakdown and discharge physics under realistic operating conditions. This review primarily covers journal publications from approximately 2014 to 2026, with emphasis on recent developments ...
Mona Ghassemi, Masoud Farzaneh
wiley   +1 more source

A Review of Transient Support and Security‐Stability Enhancement Control Strategies for Grid‐Forming Voltage Source Converter‐Based High Voltage Direct Current Transmission

High Voltage, EarlyView.
ABSTRACT Amid the ongoing global energy transition, the short‐circuit ratios of AC power grids are continuously decreasing. Grid‐forming voltage source converter‐based high voltage direct current transmission (GFM VSC‐HVDC) systems have therefore come to the forefront of attention.
Cheng Peng, Guangfu Tang, Yuexi Yang, Xiao Zhou, Chong Gao, Zhiyuan He, Xinying Wang, Hui Pang   +7 more
wiley   +1 more source

Developments and Prospects of Voltage Source Converter‐High‐Voltage Direct Current Transmission Technology

High Voltage, EarlyView.
ABSTRACT Voltage source converter‐high‐voltage direct current (VSC‐HVDC) transmission is a key technology for renewable‐energy integration, regional grid interconnection and passive‐network power supply. This review summarises the development history of VSC‐HVDC, the evolution of converter topologies, its technical advantages and representative ...
Licheng Li, Yongxia Han, Yuebin Zhou, Huangqing Xiao, Yang Dong, Weisheng Zhang, Yanan Ye, Yichang Li   +7 more
wiley   +1 more source

Computation of Very Fast Transient Overvoltages (VFTO) in a 1000 kV Gas Insulated Substation

, 2017
Very fast transient overvoltages (VFTO) generated in a gas insulated substation (GIS) during disconnector switching operations is one of the major concerns in insulation design of the GIS. Such over voltages can cause malfunctioning of the protection and
M. A. Haseeb, M. Joy Thomas, Haseeb, M A, Thomas, M Joy   +3 more
core   +1 more source

Bypass Sheath Voltage Limiters at Cable-to-GIS Terminations: Geometry-Resolved Connection-Lead Impedance for Insulation Coordination Under Very Fast Transient Overvoltages

Energies
Very fast transient overvoltages (VFTOs) from disconnector operations in gas-insulated switchgear (GIS) stress the sheath sectionalizing insulation at cable terminations, where a bypass sheath voltage limiter (BSVL) protects it. At these frequencies, the
Katarina Musulin, Božidar Filipović-Grčić, Bruno Jurišić   +2 more
doaj   +1 more source

Research Progress on Electrical Insulation Under Superimposed Voltage With High‐Frequency Harmonics in New‐Type Power Systems

High Voltage, EarlyView.
ABSTRACT A new‐type power system serves as a critical technical support for the integration of new energy, and its secure and stable operation is of great importance. However, the extensive utilisation of power electronic devices leads to power equipment insulation being subjected to electrical stresses of high‐frequency harmonics, which can easily ...
Shengtao Li, Chuang Zhang, Weiwang Wang, Yuanwei Zhu, Liuqing Yang   +4 more
wiley   +1 more source

Advances in Polymeric Insulating Materials: Global Progress in These 10 Years

High Voltage, EarlyView.
ABSTRACT This journal, High Voltage, celebrates its 10th anniversary in 2026. To commemorate this significant milestone, this comprehensive special review article showcases the latest global research progress and cutting‐edge advancements in polymeric insulating materials, a critical component that underpins high‐voltage systems and is vital to modern ...
Yoshimichi Ohki, George Chen, Davide Fabiani, Reimund Gerhard, Mona Ghassemi, Stanislaw Gubanski, Shengtao Li, Ronald Plath, Roger Schurch, Yuriy Serdyuk, Gilbert Teyssedre   +10 more
wiley   +1 more source

A Review of the Functional Properties of Ester Liquids for Power Transformers

High Voltage, EarlyView.
ABSTRACT Ester liquids have become viable alternatives to conventional mineral oils for power transformer applications, mainly driven by increasing demands for enhanced fire safety and environmental sustainability. This paper reviews the historical development and functional properties of synthetic and natural ester liquids, with particular emphasis on
Qiang Liu, Shanika Matharage, Stefan Tenbohlen, Xiaojing Zhang, Yang Xu, Hui Ma, Tapan Saha, Issouf Fofana, Shuhang Shen, Norhafiz Azis, Zhongdong Wang   +10 more
wiley   +1 more source

Very Fast Transient Overvoltage Analysis on 245 kV Gas Insulated Substation

, 2022
Gas-insulated Substations play an important role in power systems today but are adversely affected by the generation of Very Fast Transient Overvoltages (VFTO).
Anuj Paul, Pavan Karpe, R. A. Ahire, Nilesh Chaudhari, Kartik Kapse   +4 more
core   +1 more source