Results 31 to 40 of about 3,842 (216)

Circuit-based method for extracting the resistive leakage current of metal oxide surge arrester

open access: yesBulletin of Electrical Engineering and Informatics, 2020
Resistive leakage current based condition assessment of metal oxide surge arrester (MOSA) is one of the most extensively employed technique to monitor its degradation.
A. H. Khavari   +2 more
semanticscholar   +1 more source

Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends [PDF]

open access: yes, 2017
Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts.
Alan J. Watson   +8 more
core   +1 more source

Calculation and protection on the lighting intruding waves of 550 kv GIS substation

open access: yesThe Journal of Engineering, 2018
Electromagnetic Transient Programme has been used to calculate the lightning intruding wave of 550 kV GIS substation. The effects of mode operation, surge impedance and length of cable have been considered in the process of calculation.
Dongpeng Sui   +5 more
doaj   +1 more source

Failure Analysis of Metal Oxide Surge Arrester on Busbar of 220kV Substation

open access: yes, 2021
MOA (Metal Oxide Arrester) is widely used in power systems because of its good nonlinear volt-ampere characteristics and current-carrying capacity. Its long-term operation may have defects such as heat generation and reduced insulation performance.
Dewen Zhang   +5 more
semanticscholar   +1 more source

A Simplified Lightning Model for Metal Oxide Surge Arrester [PDF]

open access: yes, 2002
Lightning strike has been one of the major factors that lead to failure of electrical power systems. In recent years, metal oxide surge arrester has been widely used and it is now an essential item in the insulation coordination for power systems based ...
Mardira, K. P., Saha, T.K.
core  

EDTA‐Functionalized Nanoscale Metal–Organic Framework for Onco‐Cardiology via Radiochemotherapy Synergy and Spatiotemporally Matched Iron Chelation

open access: yesAdvanced Science, EarlyView.
Doxorubicin (DOX)‐induced cardiotoxicity is a major limitation to its broader clinical application, while cardioprotective interventions often risk reducing the anticancer efficacy of DOX. To address these challenges, this work constructs an EDTA‐functionalized metal–organic framework that enhances tumor therapy and provides efficient cardioprotection ...
Daojing Yuan   +8 more
wiley   +1 more source

Analysis of Surge Propagation with Lightning Arrester using FDTD for 25 kV-AC Transmission Line [PDF]

open access: yes, 2017
This paper analyzes lightning surge propagation and reflection as the surge arrives at a lightning arrester. Telegraphist equations have been used to characterize the voltage and current of a travelling wave in a lossless power transmission line and ...
Aodsup, K. (Kokiat)   +1 more
core  

Towards the prospection of an optimal thermal response of ZnO surge arrester in HV power system [PDF]

open access: yes, 2021
In order to understand the thermal and electrical properties of surge arrester under standard climatic conditions, it would be useful to evaluate the heating progression in its different elements.
Bayadi, Abdelhafid   +2 more
core   +3 more sources

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao   +3 more
wiley   +1 more source

Design of Defect Identification and Location System for UHV AC Surge Arrester

open access: yesIEEE Access
Ultra high voltage (UHV) metal oxide arrester (MOA) is prone to problems such as resistance sheet aging and moisture exposure during long-term operation.
Dantian Zhong, Lei Gao, Zhiyuan Cai
doaj   +1 more source

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