Results 81 to 90 of about 26,243 (212)
Study of Power Frequency Overvoltage Suppression on UHV Transmission Line
Kongzhi Yu Xinxi Jishu, 2014 It mainly studied the improvement measures of overvoltage level for UHV transmission line from Jindongnan to Jingmen. It analyzed single-phase grounding load shedding overvoltage and fault-free load shedding overvoltage in the case of the single ...
HAN Mengmeng +3 more
doaj
Advanced Energy and Sustainability Research, Volume 7, Issue 2, February 2026.Coating of 2% of the surface area of a Ni sheet electrode with a patterned mosaic of PTFE islands of uniform diameters (0.10–0.15 mm) and proximity to each other, decreases its overpotential for hydrogen production by 0.15–0.21 V and amplifies its rate of hydrogen generation by ≈20‐fold at a fixed electrode voltage of −1.15 V (vs. Hg/HgO).
Atheer Al‐Musawi +5 more
wiley +1 more source
Novel method for restraining 35 kV shunt reactor switching overvoltage – phase controlled breaker
The Journal of Engineering, 2019 Phenomena such as current chopping, arc reignition and equivalent current chopping might appear when cutting off shunt reactor. Overvoltage caused by switching will lead to interphase fault in related equipment and inter-turn insulation damage in the ...
Yiming Zheng +5 more
doaj +1 more source
Study of the oxygen electrode reaction using mixed conducting oxide surface layers. Part II: Small signal analysis [PDF]
, 1986 The oxygen gas electrode has been studied for a number of mixed conducting oxide surface layers on top of Gd2Zr2O7 (TGZO) solid electrolytes. In part II of this paper we present the results of frequency dispersion measurements for the electrode reaction,
Burggraaf, A.J. +2 more
core +3 more sources
Research on overvoltage and fault of a UHV AC/DC hybrid system
The Journal of Engineering, 2019 In view of the overvoltage problem of an ultra-high-voltage DC (UHVDC) AC/DC hybrid system, this study analyses the overvoltage condition under various fault types and gives the identification criterion of the overvoltage form. Firstly, the model of the
Yali Wang +3 more
doaj +1 more source
Technical SWOT analysis of decentralised production for low voltage grids in Flanders [PDF]
, 2012 The increasing energy prices, combined with high funding by the government, has resulted in a massive integration of decentralised electrical energy production units in Belgium.
Debruyne, Colin +3 more
core
The Journal of Engineering, 2018 Overvoltage caused by faults or switching is one of the decisive factors affecting the insulation level of equipment in UHVDC transmission systems.
Xiaoguang Zhu +6 more
doaj +1 more source
Study on characteristics of slow-front overvoltage of ±1100 kV UHVDC transmission lines
The Journal of Engineering, 2018 The ±1100 kV Zhundong–Wannan ultra high-voltage direct current (UHVDC) transmission project is under construction in China, which has the highest operating voltage in the world.
Jiqun Zhong +5 more
doaj +1 more source
DC overvoltage suppression method of wind farm connected via MMC‐HVDC system
IET Generation, Transmission & DistributionA new integration strategy of grid‐forming‐controlled wind farms connected to the bulk power systems through high‐voltage direct current transmission based on the modular multi‐level converter (MMC) is proposed to solve the problem of traditional ...
Siying Chen +6 more
doaj +1 more source
The Journal of Engineering, 2019 In the hierarchically connected ultra-high voltage (UHV) DC projects, the minimum air clearance on the 1000 kV AC side of converter transformer directly affects the layout and area of the valve hall.
Lou Ying +3 more
doaj +1 more source