Results 51 to 60 of about 6,119 (211)
Arc tracking control in insulation systems for aeronautic applications: challenges, opportunities, and research needs [PDF]
, 2020 Next generation aircrafts will use more electrical power to reduce weight, fuel consumption, system complexity and greenhouse gas emissions. However, new failure modes and challenges arise related to the required voltage increase and consequent rise of ...
Bogarra Rodríguez, Santiago +3 more
core +2 more sources
High Voltage, EarlyView.ABSTRACT In heavy metal industrial areas, the issue of insulation flashover caused by metal contamination on the external insulation of transmission lines has become increasingly prominent. This paper investigates the U160B/155 porcelain insulator, examining how iron, copper and zinc metal contaminations affect its AC flashover characteristics ...
Zhijin Zhang +5 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The surface charge accumulation on insulators is one of the important factors that limit the development of high‐voltage direct current (HVDC) gas insulated transmission line (GIL), and the accurate measurement of surface charge is the basis to explore its physical mechanism.
Lei Zhang +3 more
wiley +1 more source
Protek: Jurnal Ilmiah Teknik ElektroThis study aims to use an artificial neural network to forecast the flashover voltage of a polluted high-voltage insulator. Practical tests were conducted on a high-voltage insulator to gather data for the neural network.
Mardini Hasanah +5 more
doaj +1 more source
High Voltage, EarlyView.ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren +5 more
wiley +1 more source
Energies, 2018 The flashover performance of insulators is the foundation of the calculation of precise lightning protection. The material and structure of an insulator affect its flashover performance but the research on the differences in the flashover performance of ...
Yaqi Zhang +9 more
doaj +1 more source
AIP Advances, 2023 The flashover failure and damage of polypropylene (PP) and polyester (PET) films under nanosecond current pulses were experimentally investigated.
Zhiqiang Chen +8 more
doaj +1 more source
Tower grounding improvement versus line surge arresters: comparison of remedial measures for high-BFOR subtransmission lines [PDF]
, 2015 This paper presents a technical/economic comparison between remedial measures aimed at improving the lightning performance of an existing Italian three-phase 150-kV overhead line.
GATTA, Fabio Massimo +4 more
core +1 more source
Micro Partial Discharge Characteristics of SF6 Under DC Voltage
High Voltage, EarlyView.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
Field Analysis of SF(6) Gas Insulated Cables and Its Application to Spacer Design [PDF]
, 1974 This paper describes the spacer design for SF(6) gas insulated cables. The maximum electric stress within the cable is calculated by a numerical method, and it is recognized that the breakdown voltage depends linearly on the calculated values.
Itaka, Koshi +2 more
core +1 more source