Results 51 to 60 of about 147,345 (296)

Microprocessor Protection Relay Based on Amplitude-Phase Measurements of Signals [PDF]

, 2022
Microprocessor-based relay protection devices enable efficient operation of the electrical infrastructure of high voltage power lines and substations under emergency conditions. This is achieved by using high-speed fault detection algorithms and advanced
JDANOV, Vladimir, SESTACOVA, Tatiana
core   +1 more source

Review and prospect of hidden failure: protection system and security and stability control system

Journal of Modern Power Systems and Clean Energy, 2019
With the construction of the “3-level, 3-vertical-line, and 1-circle” power backbone in China, it's stricter and stricter on relay protection system and security and stability control system (SSCS) for reliable power transmission ...
Lili Zhao, Xueming Li, Ming Ni, Tianyu Li, Yameng Cheng   +4 more
doaj   +1 more source

Design of an Arduino-Based Inverse Type Overcurrent Relay

Emitor: Jurnal Teknik Elektro
An overcurrent relay is an important device in protection systems to protect electrical equipment from damage caused by excessive overcurrent. The objective of this study is to design and implement an overcurrent relay system that can detect and mitigate
rizky susilo, Marselino Pakorong, Priyo Handoko Chusnama Ali   +2 more
doaj   +1 more source

Current state of the problems of functioning of relay protection and automation complexes used in an active adaptive network

Известия высших учебных заведений: Проблемы энергетики, 2023
THE PURPOSE. To analyze the influence of series compensation devices on the operating modes of power transmission lines. To identify problems of functioning of relay protection and automation complexes when they are used on power transmission lines with ...
I. Yu. Ivanov, V. V. Novokreshchenov, V. R. Ivanova   +2 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

CD47 promotes mitogen‐activated protein kinase and epithelial‐to‐mesenchymal transition molecular programs to drive prometastatic phenotypes in non‐small cell lung cancer

Molecular Oncology, EarlyView.
Beyond its role in immune evasion, this study identified that CD47 drives tumor‐intrinsic signaling in non‐small cell lung cancer (NSCLC). Transcriptomic profiling and functional studies revealed that CD47 regulates cell adhesion, migration, and metastasis through an ERK–EMT signaling axis.
Asa P.Y. Lau, Lilian G. Zhai, Ryunosuke Hoshi, Zackary Rousseau, Abraam Zakhary, Yin Fang Wu, Rola M. Saleeb, Heyu Ni, Kelsie L. Thu   +8 more
wiley   +1 more source

Analysis of Polygonal Distance Protection Relay of Transmission Line Affected by SMES Device

, 2014
Because of unique advantages in rapid response and independent control of act ve and reactive power, Superconducting Magnetic Energy Storage (SMES) device will be widely used in the power system.
Yang, Jun, Zhang, Wenjia
core   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

Advanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang, Atakan Tevlek, Pawel L. Urban, Boaz Mizrahi, Onome Ejeromedoghene, Roshan Deen, Yuanjing Lin, Jagan Mohan Dodda   +7 more
wiley   +1 more source

Distance Protection Relay Testing Using Virtual Hardware-in-the-Loop Device

, 2023
The complexity of modern power system phenomena challenges power system protection testing to obtain the required adequacy of the testing environment before actual implementation.
Pham, Le Nam Hai, Gonzalez-Longatt, Francisco   +1 more
core   +1 more source