Results 71 to 80 of about 1,406,505 (216)
Research on Transient Process of Electric Locomotive Auto-passing Neutral Section with Load
机车电传动, 2016 To theoretically analyze the overvoltage and overcurrent when the train runs through neutral section under traction condition and regeneration condition, the equivalent electrical circuit was developed based on T equivalent circuit of transformer.
Liu Ling, Xiong Chenglin
doaj
EnergiesTo address the challenges of system failures and equipment damage caused by excitation inrush currents and overvoltages during no-load energization of high-speed locomotive transformers, a simulation model was developed utilizing PSCAD electromagnetic ...
Junting Yan +3 more
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工程科学与技术, 2017 :In order to investigate the inhibition effect of prior rejuvenation on the initiation of electrical tree and the propagation of the tree in the cross-linked polyethylene cable under combined AC voltage and switching overvoltage,the prior rejuvenation ...
周凯 +5 more
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A Review of Overvoltage Protection Technologies and Protective Devices for Wind Turbines
EnergiesWind turbines are persistently threatened by both lightning overvoltage and switching overvoltage due to their ultra-high structure, dense power electronics, and harsh operational environments, which severely endanger the safe and stable operation of the
Jinru Sun +7 more
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Evaluation of the efficacy of transient overvoltages suppression measures in different wind farm topologies using SF6 circuit breaker. [PDF]
Sci Rep, 2023 Eliyan T, Wadie F.
europepmc +1 more source
Jurnal Nasional Teknik ElektroA substation is one of the essential aspects of an electrically interconnected system, especially in a grid utility. Power generation, transmission, and distribution systems always need a continuous power supply to the customer.
Bagus Irawan Saputra +2 more
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Research on the impact of transformer switching-off on core residual magnetism
Zhejiang dianliMagnetizing inrush current caused by transformer no-load switching can lead to various issues in power grid operations. Techniques such as phase-controlled switching are effective in mitigating these effects， with the key factor being the measurement of ...
HAN Xiao +4 more
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An Active dv/dt Filter to Combat Motor Terminal Overvoltage in SiC-Based Adjustable Speed Drives
IEEE transactions on industrial electronics (1982. Print)In silicon carbide (SiC)-based adjustable speed drives, the fast-switching voltage pulses cause power cables to act like transmission lines, leading to severe overvoltage at motor terminals.
Wenzhi Zhou, Xibo Yuan, Zhaobo Zhang
semanticscholar +1 more source
An advanced transient protection circuit for enhancing the overvoltage tolerance of MMC submodules
Journal of Engineering and Applied ScienceIGBTs are critical switching devices in MMCs, yet their vulnerability to turn-off overvoltage under transient and fault conditions poses a fundamental reliability challenge.
Chao You, Jiancheng Ma, Xin Chen
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ITEGAM-JETIAThe study aimed to determine the regularities of switching overvoltages during the operation of medium-voltage capacitor banks and to evaluate the effectiveness of methods for their reduction.
Aldi Mucka +3 more
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