Results 11 to 20 of about 28,186 (267)
Petroleum Exploration and Development, 2014 Through outcrop observation of the internal structure of volcanic fault zone and in combination with fault sealing mechanism research and lithology juxtaposition evaluation, this paper analyzes the internal structure and lateral fault sealing of a ...
Lingdong MENG +6 more
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Distance protection based on parameter identification considering transformer characteristics
The Journal of Engineering, 2018 The distance protection method with parameter identification can distinguish internal fault from external fault correctly and avoid the transient overreach effectively based on the accurate secondary signal data.
Zhiqin Zheng +4 more
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Internal faults in power transformers
IET Electric Power Applications, 2007 The paper deals with internal faults in large power transformers. The explanation of such faults is followed by the description of an analytical method proposed for the calculation of the power flow during an interturn fault, including the current supplied by the power grid, the current in a group of short-circuited turns and the current in the spot of
M. Jabloński, E. Napieralska-Juszczak
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Lithosphere, 2021 Superimposed tectonic movement and karst erosion resulted in a combination of fractures and irregular caves in deep/ultradeep carbonate rocks, typically along major fault swarms.
Peng Cao +6 more
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Internal representation of a process, fault diagnosis and fault correction [PDF]
Ergonomics, 1979 This paper reports on an investigation into the relationship between the internal representation of a process on the one hand and on the other, control behaviour when diagnosing and correcting faults. The subjects were 87 process operator trainees, performing certain tasks in a simulated process control situation.
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Waveform dissimilarity factor-based protection for main transformers in wind farms
Energy Reports, 2023 Current differential protection (CDP) is widely used as main protection for transformers due to its high reliability and selectivity. Owing to non-fundamental frequency current, magnetizing inrush and current transformer (CT) saturation, CDP may undergo ...
Yingyu Liang +3 more
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Entropy, 2015 On the basis of analyzing high-voltage direct current (HVDC) transmission system and its fault superimposed circuit, the direction of the fault components of the voltage and the current measured at one end of transmission line is certified to be ...
Sheng Lin +3 more
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Research of influence of open-winding faults on properties of brushless permanent magnets motor
Open Physics, 2017 The paper presents an analysis of influence of selected fault states on properties of brushless DC motor with permanent magnets. The subject of study was a BLDC motor designed by the authors for unmanned aerial vehicle hybrid drive.
Bogusz Piotr +4 more
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Fast single-end line protection method for the meshed multi-terminal HVDC grid
The Journal of Engineering, 2019 In view of the short-circuit fault characteristics, the protection technique of the dc lines limits the development of the modular multi-level converter (MMC)-based HVDC grid in a large extent. This study derives the calculation formulas of the transient
Qiang Huang +4 more
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A Fault Attack on the Family of Enocoro Stream Ciphers
Cryptography, 2021 A differential fault attack framework for the Enocoro family of stream ciphers is presented. We only require that the attacker can reset the internal state and inject a random byte-fault, in a random register, during a known time period.
Julian Danner, Martin Kreuzer
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