Results 21 to 30 of about 2,536,520 (305)
Modelling and performance testing of a digital over-current relay enhanced designed model
Electrical engineering & Electromechanics, 2022 Introduction. The over-current relay is widely used to protect distribution and transmission electrical systems against excessive currents occurring due to short circuit or overload conditions.
H. Sekhane, D. Labed, M. A. Labed
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Design of intelligent terminal of mine inspection instrument based on STM32
Meikuang Anquan, 2021 An intelligent terminal of mine inspection instrument is designed. STM32 single-chip microcomputer with rich resources and suitable for large capacity data processing and control as the core of control unit, the software and hardware development of ...
GUO Haoteng, WU Weili, MAO Hao, ZHAO Hongju
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Energies, 2021 In this paper, the authors have developed a hardware model for blocking even and odd harmonics of a power transformer. In the proposed hardware model, intelligent differential & over-current relays are used for the blocking of harmonics of a power ...
Abdul Azeem +4 more
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IET electric power applications, 2020 This study confers a novel approach towards fuzzy-PI (proportional–integral) controlled pulse width modulation (PWM) controlled permanent magnet synchronous motor (PMSM) drive operated through a conventional voltage source inverter (VSI) supplemented ...
Chiranjit Sain +4 more
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Several Methods of Reducing Discharge Energy for Intrinsic Safety Power Supply
Meikuang Anquan, 2020 In order to reduce the discharge spark energy of the intrinsic safety power supply, several measures are proposed in this paper. When the over-current protection occurs, DC-DC or AC-DC module should be turned off as quickly as possible, and the ...
DONG Jianguo, LI Yanmin, ZHOU Xingdong, ZHANG Lei
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Optimal coordination of over-current relays in microgrids considering multiple characteristic curves
Alexandria Engineering Journal, 2021 Nowadays, microgrids play a significant role in the development of modern distribution networks (DNs). In this context, the ever increasing presence of renewable distributed generation (DG) in microgrids has imposed new challenges in protection ...
Sergio D. Saldarriaga-Zuluaga +2 more
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Study of a Fast Over-Current Protection Based on Bus Voltage Drop for Gallium Nitride Power Device
IOP Conference Series: Materials Science and Engineering, 2020 Due to the low threshold voltage, gallium nitride (GaN) high electron mobility transistor (HEMT) is prone to mis-conduction. Meanwhile, compared with silicon (Si) insulated gate bipolar transistors (IGBT) and silicon carbide (SiC) metal- oxide ...
Yang Zhou, Z. Bai, X. Gong
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Design of protection module of intrinsic safety power supply based on LT4356
Gong-kuang zidonghua, 2014 In view of problems of simple protection function, low conversion efficiency, poor anti-interference ability and low intrinsic safety current existed in current protection module of intrinsic safety power supply, a protection module of intrinsic safety ...
XIE Guojun +3 more
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Design analysis of mine-used intrinsic safety power supply
Gong-kuang zidonghua, 2014 In view of requirements that intrinsic safety power supply must has multi-protection of over-current and over-voltage, the paper introduced working principle of a circuit of mine-used intrinsic safety power supply based on LM317 regulator, analyzed ...
LIU Qi
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AC Microgrids Protection: A Digital Coordinated Adaptive Scheme
Applied Sciences, 2021 A significant challenge for designing a coordinated and effective protection architecture of a microgrid (MG) is the aim of an efficient, reliable, and fast protection scheme for both the grid-connected and islanded modes of operation.
Noor Hussain +6 more
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