Results 51 to 60 of about 15,608,816 (291)

Study on working condition of 750 kV AC filter breaker in ± 1100 kV UHVDC system

The Journal of Engineering, 2019
In this article, the Changji-Guquan ± 1100 kV ultra-high voltage direct current (UHVDC) system has been established by PSCAD software, especially for the arc of the circuit breakers.
Zexin Zhao, Jie Guo, Fang Yu, Xuni Rao, Xiaoke Wu   +4 more
doaj   +1 more source

Research on a Novel DC Circuit Breaker Based on Artificial Current Zero-Crossing

IEEE Access, 2020
Modular multilevel converter-based high voltage direct-current (MMC-HVDC) transmission has developed rapidly because of its flexibility, reliability and efficiency.
Shangfu Teng, Zhifeng Zhang, Liye Xiao
doaj   +1 more source

D-Distance Technique to Determine Failure Probability of Power Circuit Breaker

Energies, 2023
In this paper, a new D-distance factor is proposed to determine the failure probability and to prioritize maintenance actions of power circuit breakers in high-voltage substations.
Suphon Kumpalavalee, Thanapong Suwanasri, Cattareeya Suwanasri, Rattanakorn Phadungthin   +3 more
doaj   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Experimental Study on Splitter Plate for Improving the Dielectric Recovery Strength of Low-Voltage Circuit Breaker

, 2020
The low-voltage circuit breakers are widely used to protect loads in the distribution system. Interruption reliability of circuit breakers is important because they are a protective device close to the customer.
Kun-A Lee, Young-Maan Cho
core   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

Advanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang, Jianxiang Zhao, Zhaoqi Chen, Hao Gong, Yinsen Yan, Junlei Tao, Yong Yang   +6 more
wiley   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

Advanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller, Steffen Gabsa, Werner Homberg, Guido Grundmeier   +3 more
wiley   +1 more source

PENGEMBANGAN MEDIA OBYEK 3D VACUUM CIRCUIT BREAKER MEMANFAATKAN PIRAMIDA HOLOGRAM

Jurnal Kajian Teknologi Pendidikan, 2019
Media obyek 3 dimensi digital vacuum circuit breaker memanfaatkan pirmida hologram adalah media yang menampilkan obyek tiruan yaitu vacuum circuit breaker berbentuk digital grafis memanfaatkan piramida hologram.Tujuan penelitian ini untuk menghasilkan ...
Dana Kurniawan, Susilaningsih Susilaningsih, Yerry Soepriyanto   +2 more
doaj   +1 more source

A Low Voltage Circuit Breaker Switch Trip Circuit State Detection Method Based on Current Signal Characteristic Extraction and Bidirectional Long Short‐Term Memory Neural Network

Engineering Reports
To accurately and timely detect the status of the low‐voltage circuit breaker switch trip circuit, ensure the safe and stable operation of the power system, and reduce economic losses caused by circuit breaker failures, a method for detecting the status ...
Wei Zhang, Ping Wang
doaj   +1 more source

Simulation and research on over-voltage suppression for high voltage transmission line

The Journal of Engineering, 2019
For different types of fault in transmission line, the generation mechanism of tripping and closing over-voltage is analysed. To built the double power supply system of high-voltage transmission line simulation model by PSCAD/EMTDC, finally, for the ...
Qi Yao, Chuan Su, Yi Ji
doaj   +1 more source