Results 61 to 70 of about 45,196 (330)

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

International White Book on DER Protection : Review and Testing Procedures [PDF]

, 2011
This white book provides an insight into the issues surrounding the impact of increasing levels of DER on the generator and network protection and the resulting necessary improvements in protection testing practices.
Abdulhadi, Ibrahim Faiek, Booth, Campbell, Burt, Graeme, Coffele, Federico, Crolla, Paul, Dysko, Adam, Li, Xinyao, Schafer, Nils   +7 more
core  

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Single-Pole High-Resistance Grounding Protection for DC Distribution Lines Based on Current Integral Quantity Correlation

Zhongguo dianli
When a single-pole high-resistance grounding fault occurs in a DC distribution system, the transient current amplitude is small and the fault characteristics are weak, making it hard for the existing protection methods to provide reliable protection for ...
Xingquan JI, Huizong MAO, Pingfeng YE, Zhiqiang LIU, Xiangxing ZHANG, Xinyue HUANG, Yachao NI   +6 more
doaj   +1 more source

Principle of Flexible Ground-Fault Arc Suppression Device Based on Zero-Sequence Voltage Regulation

IEEE Access, 2021
Single-line-to-ground (SLG) fault arcs cause the intermittent over-voltages, leading to short circuits within large-scale area. In this paper, a flexible arc suppression device is proposed, which adopts a zigzag grounding transformer, multi-terminal ...
Bishuang Fan, Ganzhou Yao, Kun Yu, Xiangjun Zeng, Wen Wang, Chao Zhuo, Josep M. Guerrero   +6 more
doaj   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Fault phase selection of mine power supply system based on frequency distribution theory

Gong-kuang zidonghua, 2017
In view of the problem of ineffective selection of asymmetric mine neutral point ungrounded system while high resistance grounding occurs, a fault phase selection of mine power supply system based on frequency distribution theory was proposed. Each phase
YU Qun, CHEN Zhihui, HE Ziyua
doaj   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Performance Optimization of Grounding System for Multi-Voltage Electrical Installation

Applied Sciences
Grounding systems are critical for ensuring electrical safety, fault current dissipation, and electromagnetic compatibility in power installations across different voltage levels.
Md Tanjil Sarker, Marran Al Qwaid, Md Sabbir Hossen, Gobbi Ramasamy   +3 more
doaj   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source