Results 11 to 20 of about 841,302 (182)
Gaoya dianqi, 2021 800 kV高压交流隔离开关是我国西北电网750 kV输电线路重要的开关设备。文中在国内外高压开关设备研究的基础上,进一步对800 kV高压交流隔离开关进行理论分析研究,确定了800 kV高压交流隔离开关的技术方案及结构参数,建立了800 kV高压交流隔离开关三维模型并进行机械及绝缘特性仿真分析。研制出800 kV高压交流隔离开关样机并通过了型式试验的验证。通过仿真分析和型式试验研究得出,文中设计的800 kV高压交流隔离开关结构合理,机械特性和绝缘特性满足招标要求 ...
李宏楼 +11 more
doaj
Internal charge behaviour of nanocomposites [PDF]
, 2004 The incorporation of 23 nm titanium dioxide nanoparticles into an epoxy matrix to form a nanocomposite structure is described. It is shown that the use of nanometric particles results in a substantial change in the behaviour of the composite, which can ...
Alison J +20 more
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A novel fault location method for a cross-bonded hv cable system based on sheath current monitoring [PDF]
, 2018 In order to improve the practice in the operation and maintenance of high voltage (HV) cables, this paper proposes a fault location method based on the monitoring of cable sheath currents for use in cross-bonded HV cable systems.
Huang, Xiaojun +6 more
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Improved spatial separation of neutral molecules [PDF]
, 2017 We have developed and experimentally demonstrated an improved electrostatic deflector for the spatial separation of molecules according to their dipole-moment-to-mass ratio. The device features a very open structure that allows for significantly stronger
Gordy W. +10 more
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IEEE AccessDue to the relatively low operational reliability of the MMC valve, it is necessary to establish corresponding test methods to examine the tolerance of the valve to electrical and thermal stresses under engineering requirements through operational tests,
Qing Liu +4 more
semanticscholar +1 more source
The triggered behavior of a controlled corona stabilised cascade switch [PDF]
, 2011 Corona stabilised switches have been shown to have advantages in pulse power switching applications due to their high repetition rates and low jitter.
Given, M +5 more
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THz generation using a reflective stair-step echelon
, 2015 We present a novel method for THz generation in lithium niobate using a reflective stair-step echelon structure. The echelon produces a discretely tilted pulse front with less angular dispersion compared to a high groove-density grating.
Huang, W. Ronny +3 more
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The annealing of 1 MeV implantations of boron in silicon [PDF]
, 1985 Buried layers of boron in silicon have been made by 1 MeV implantations up to a dose of 1013 cm−2. The annealing of the implantation damage has been studied with Van der Pauw and Hall measurements. It is concluded that lattice damage reduces the mobility
Middelhoek, J., Oosterhoff, S.
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Gaoya dianqi, 2020 为了提高±800 kV特高压直流输电线路抵御雷害风险能力,研究了±800 kV直流线路避雷器安装选点、基本参数、安装方案和工程应用。文中以±800 kV锦苏线浙江段为工程背景,对其线路走廊落雷情况进行了分析及差异化防雷评估,提出了安装选点原则,开展了避雷器的关键技术参数的理论计算及试验研究,分析了线路避雷器的安装要求,根据安装选点原则配置了避雷器,设计了一种复合绝缘子斜拉式安装方法,成功实施了±800 kV直流线路避雷器的大规模工程应用,对±800 kV直流线路避雷器在其余±800 ...
曹伟 +5 more
doaj
Picosecond electric-field-induced threshold switching in phase-change materials
, 2016 Many chalcogenide glasses undergo a breakdown in electronic resistance above a critical field strength. Known as threshold switching, this mechanism enables field-induced crystallization in emerging phase-change memory.
Brongersma, Mark +18 more
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