Results 141 to 150 of about 7,540 (299)
Differential Protection of a Three-Phase Power Transformer Using Hall Effect Current Transducer [PDF]
, 2002 In a power system, transformers and other electrical equipment need to be protected not only from short circuit, but also from abnormal operating conditions, such as over loading, and differential fault protection.
Fathollahi Fard, Ali Asghar
core
Ultrasmall High‐Entropy Materials: Nanoscale Effects, Synthesis, and Mechanistic Insights
Advanced Functional Materials, EarlyView.This review article focuses on sub‐10 nm high‐entropy materials that combine nanoscale design with complex compositions for next‐generation applications. ABSTRACT Ultrasmall high‐entropy nanomaterials (USHENMs, <10 nm) merge multicomponent chemistry with size‐dependent effects, forming a distinct class of materials with unprecedented properties.
Yueyue He +5 more
wiley +1 more source
Transformer protection using numerical relay
, 2014 Prilikom rada energetskog transformatora mogući su brojni kvarovi i smetnje koji mogu oštetiti transformator i onemogućiti normalan rad elektroenergetskog sustava.
Gardijan, Boris
core
Digital Protection Of Power Transformer Using Microcontroller-Based Relay [PDF]
, 2002 In this thesis the fault types m the power transformer as well as their protection scheme have been studied, and the factors which lead to mal operation of differential protection such as : magnetizing inrush, over excitation, ratio mismatch and ...
Rafa, Adel Hamad
core
Advanced Functional Materials, EarlyView.Metasurfaces and other structured photonic environments can dramatically modify the absorption and/or light emission of semiconductors. However, the consequences of these changes on the temperature of the system are not well understood. The authors address this problem for colloidal nanocrystals and leverage their findings to convert light into ...
Hugo Kowalczyk +7 more
wiley +1 more source
, 2012 A Failure of large power transformer protection not only reduces the reliability of power system but also has significant effects on power quality since one of the important components of any system quality is the reliability of that system.
Bentarzi, Hamid, Chafai, M.
core +1 more source
Advanced Functional Materials, EarlyView.A nanounit‐assembled hydrogel employing a “pull‐and‐push” strategy simultaneously scavenges pro‐inflammatory cell‐free DNA (cfDNA) and delivers regenerative therapeutics in response to burn‐induced hyperthermia. By repolarizing macrophages and promoting angiogenesis, this multifunctional platform accelerates burn wound healing, offering a blueprint for
Han‐Sem Kim +9 more
wiley +1 more source
Application of Ibuprofen Sodium Dihydrate for Thermochemical Energy Storage
Advanced Functional Materials, EarlyView.Ibuprofen sodium dihydrate is introduced as a durable organic salt hydrate for low‐temperature thermochemical energy storage, operating within 60°C–110°C with high energy density. At the material level, it delivers ∼99.9% cycling efficiency over 150 cycles without deliquescence, enabled by a dual energy‐storage mechanism coupling dehydration and phase ...
Kavin Chakravarthy Thangaraj +10 more
wiley +1 more source
Advanced Functional Materials, EarlyView.This work presents a programmable atomic engineering strategy for 2D materials using Å‐scale nanoreactors formed by bilayer graphene (BLG) intercalation. A new class of alkali‐iron‐chloride compounds, along with lateral heterostructures composed of monolayer alkali halides and iron chlorides, is revealed.
Haiming Sun +6 more
wiley +1 more source
Investigation оf Microprocessor Differential Protection оf Power Reducing Transformer
Наука и техника, 2014 The paper presents investigations on functioning of a differential protection of 110 kV reducing transformer with internal faults using computer simulation.
F. A. Romaniuk, M. S. Loman
doaj