Results 41 to 50 of about 19,160 (287)
Омский научный вестник, 2023 The issues of introduction of electrical digital substations in the Russian Federation are considered. An existing criteria analysis for assessing the modern relay protection devices efficiency is carried out and an assessment of their sufficiency is ...
A. V. Simakov +2 more
doaj +1 more source
Peculiarities of the relays intended for operating trip coils of the high-voltage circuit breakers [PDF]
Serbian Journal of Electrical Engineering, 2007 Parameters of the subminiature electromagnetic relays used as output elements in microprocessor relay protection, do not correspond to technical specifications on these relay protection. The reasons of this discrepancy are analyzed.
Gurevich Vladimir
doaj +1 more source
Core technologies for hydropower digitalization within the Energy Internet framework: a mini-review
Frontiers in WaterHydropower, a cornerstone renewable energy source globally, is undergoing a transformative evolution through digitalization technologies within the emerging Energy Internet paradigm.
Tingxiang Cao +5 more
doaj +1 more source
Protection Relay Setting based on Overcurrent Phenomena in Commercial Building [PDF]
Nowadays, every single distribution system needs to install an appropriate relay to keep the system safe. The operational and commonly recommended relay for distribution systems is the overcurrent (OC) relay.
Hussain, Muhamad Hatta +6 more
core +1 more source
Coordination of adaptive distance protection in transmission and wind farm collector lines under resistive fault conditions [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2020 Distance relays calculate the path impedance between the fault point and the relay location by sampling the voltage and current at the relay location. By using the ratio of the impedance estimated by the relay to the impedance of the line where the relay
Jamshid Barati +2 more
doaj +1 more source
Modeling and testing of digital protection relay for an induction motor [PDF]
, 2010 The project details the modelling of the induction motor SEL701 Relay in PowerFactory. In order to prove operational reliability, both off-line and on-line testing were implemented to verify the characteristic curve of the relay by measuring trip times ...
Cho, Sungmin
core +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 +7 more
wiley +1 more source
Application of evolutionary algorithms for optimal directional overcurrent relay coordination [PDF]
, 2014 Includes bibliographical references.Relay coordination is necessary to ensure that while protection relays operate as fast as possible, they are also able to isolate only the faulted parts of the system from the network, ensuring that a power system ...
Stenane, Ndabeni Moses
core
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 +8 more
wiley +1 more source
Protection of ungrounded systems using an advanced relay element [PDF]
, 2010 The aim of this thesis project is to investigate single line to ground faults in an ungrounded system and determine an effective fault detection method. Ungrounded system analysis is conducted using ICAP simulation.
Siyambalapitiyage, Berty
core +1 more source