Results 81 to 90 of about 426,824 (203)
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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Study of Recovery Transient Overvoltage using ATP
, 2009 Peak overvoltage occurring during switching (energizing and de-energizing) is one of the most frequently encountered problems in power systems environment.
Anantha Rao, Anantha
core
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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Transient Overvoltage Analysis During Capacitor Bank Switching in 35 kV Energy Systems [PDF]
Reactive power compensation improves voltage regulation, reduces power losses, and enhances the reliability of electrical systems. In medium-voltage (35 kV) networks, static capacitor banks (SCBs) are widely used for reactive power compensation. However,
Ismayilova, Gulgaz Gulaga +2 more
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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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EnergiesThe ±500 kV valve halls of wind farm offshore platforms are integrated through a high-voltage direct current (HVDC) transmission system and constructed in deep-sea conditions, making the design of net air clearance distances particularly critical.
Qing Chen +5 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 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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