Results 61 to 70 of about 6,358 (219)

Short-term Breakdown and Long-term Failure in Nanodielectrics: A Review [PDF]

open access: yes, 2010
Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics.
Yunxa Zhang   +15 more
core   +1 more source

Study on the Amplification Factor of Ice‐Shedding Jump Height of Transmission Lines Under Ice–Wind Coupling

open access: yesHigh Voltage, EarlyView.
ABSTRACT Ice accumulation on transmission lines poses a persistent threat to grid stability, yet precise technical guidance for the dynamic response during ice shedding under wind loads remains insufficient. In response to this issue, this study uses C++ to create a calculation program and obtains aerodynamic coefficients of ice‐covered conductors with
Guolin Yang   +5 more
wiley   +1 more source

Study on Raindrop Dynamic Behaviour and Its Impact on Insulator Flashover Characteristics Under Airflow Synergy

open access: yesHigh Voltage, EarlyView.
ABSTRACT The synergistic effect of airflow on rainfall behaviour significantly impacts the flashover probability of insulators. This study combines experiments and simulations to investigate the influence of raindrop dynamic behaviour, shed structures and rainfall conditions on flashover characteristics under airflow conditions.
Keqi Huang   +5 more
wiley   +1 more source

Investigation of Lightning-Initiated Flashover Faults in Medium Voltage Overhead Lines - Modelling and Experimental Evaluation [PDF]

open access: yes, 2016
Lightning can cause flashovers on Medium Voltage (MV) lines from both direct and nearby strikes. The work presented in this dissertation thoroughly investigates the characteristics of lightning-initiated flashover faults, expected overvoltage stress and ...
Mahmood, Farhan
core   +1 more source

Application Status and Development Trends of DC Ice‐Melting Devices in China's Power Grid

open access: yesIET Smart Energy Systems, EarlyView.
This paper summarises the development history and engineering application status of DC ice‐melting devices (DCIMD) in China, analyses the principles, advantages, disadvantages and adaptability of mainstream topologies and discusses the key problems and corresponding improvement directions.
Ming Lei   +6 more
wiley   +1 more source

Effect of AC Pre-Charging of Epoxy Insulator on Flashover Properties in Eco-Friendly Binary Gas Mixtures

open access: yesEnergies
Metal particles and surface charge accumulation are considered the key factors that could trigger unexpected flashovers of insulators equipped in gas-insulated switchgear (GIS).
Jian Guan   +5 more
doaj   +1 more source

Analysis of Various ESDD of Contaminant Insulator Flashover Acoustic Signal by Wavelet Packet

open access: yesCybernetics and Information Technologies, 2016
With the formation of China’s large power grid, the security of the network is particularly important. The contaminant flashover of insulators has a serious impact on the operation safety of a high voltage power network.
Wang Hong Kun, Wang Shou Xiang, Nie Jing
doaj   +1 more source

Anode-Initiated Surface Flashover [PDF]

open access: yes, 1979
Either of two distinctively different surface flashover mechanisms may lead to the electrical breakdown of an insulator under high voltage stress in vacuum.
Anderson, R. A.
core  

Micro Partial Discharge Characteristics of SF6 Under DC Voltage

open access: yesHigh Voltage, Volume 11, Issue 4, Page 1058-1067, August 2026.
ABSTRACT In gas‐insulated high‐voltage direct current (HVDC) devices, micro partial discharges (PD) caused by micro‐protrusions or surface roughness on conductors or enclosures may not cause immediate insulation system failure due to their weak discharge intensity.
Geng Chen   +4 more
wiley   +1 more source

Pengaruh Polutan Asap Kendaraan Terhadap Tegangan Flashover Pada Isolator Jenis Epoksi Resin Metode Slow Rate Of Rise Test

open access: yes, 2019
Tegangan flashover merupakan kegagalan isolasi yang disebabkan karena pembebanan medan listrik pada permukaan isolator melebihi kapasitas ketahanan elektriknya.
Al KATSIRI, Muhammad Zaki
core  

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