Results 61 to 70 of about 9,639,269 (244)
Deep Underground Science and Engineering, EarlyView.Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu +4 more
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Gong-kuang zidonghua, 2021 The current researches on the application of direct current resistivity method in coal seam floor water inrush monitoring mainly focus on the resistivity response characteristics of the deformation and damage of the floor, and there are few researches on
LU Jingji
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Controlled transition full-bridge hybrid multilevel converter with chain-links of full-bridge cells [PDF]
, 2016 This paper proposes a controlled transition full-bridge (CTFB) hybrid multilevel converter (HMC) for medium and high voltage applications. It employs a full-bridge cell chain-link (FB-CL) between the two legs in each phase to generate multilevel bipolar ...
Adam, Grain Philip +3 more
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High Voltage, EarlyView.ABSTRACT The breathing system of an oil‐immersed transformer is of vital importance for maintaining equilibrium between internal and external pressures, with any malfunction potentially disrupting the transformer's stable operation. This study develops a thermal–fluid–structure interaction (TFSI) model to simulate the breathing phenomenon in a 110 kV ...
Lujia Wang +5 more
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Inrush current method of transformer based on wavelet packet and neural network
The Journal of Engineering, 2018 The transformer is an important equipment of power system; its operation state is directly related to the security and stability of the power system. Aiming at the problem that the differential protection of power transformer has been plagued by inrush ...
Wei Wang +5 more
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Power quality and electromagnetic compatibility: special report, session 2 [PDF]
, 2015 The scope of Session 2 (S2) has been defined as follows by the Session Advisory Group and the Technical Committee: Power Quality (PQ), with the more general concept of electromagnetic compatibility (EMC) and with some related safety problems in ...
Desmet, Jan +2 more
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Applied SciencesAn inrush current will be generated inside a converter transformer during no-load switching on or off. The inrush current will cause severe vibration of the winding and other components of the converter transformer.
Jinzhuang Lv +7 more
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Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2017 Principles of implementation of current protection of elements of electric power systems with power transformers are considered. In some cases, in facilities with power transformers there could be an inrush of a magnetizing current that can cause a false
F. A. Romaniuk, A. G. Shapozhnikova
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A Forced Union: Exploring the Consequences of India's Removal of Jammu and Kashmir's Special Status
Nations and Nationalism, EarlyView.ABSTRACT This article adds to academic literature interested in two core questions: What happens to residents as a result of an annexation? And how do aggressor states maintain control over an annexed territory where there is a history of insurgency and mobilization for independence?
Serena Hussain
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Energies, 2017 Three-phase active damping LCL-type grid-connected converters are usually used in distributed power generation systems. However, serious inrush current will be aroused when the grid-connected converter starts, especially in rectifier mode, if no ...
Shiying Zhou +4 more
doaj +1 more source