Comprehensive Analysis of Transient Overvoltage Phenomena for Metal-Oxide Varistor Surge Arrester in LCC-HVDC Transmission System with Special Protection Scheme [PDF]
Energies, 2022 This paper proposes a systematic and deterministic method for metal-oxide varistor (MOV) surge arrester selection based on the comprehensive analysis in line-commutated converter (LCC)-based high-voltage direct current (HVDC) transmission systems.
Jaesik Kang
doaj +4 more sources
FDTD Electromagnetic and Thermal Simulation of a Metal Oxide Varistor Element Considering the Temperature Dependence of Its Resistivity [PDF]
Electricity, 2021 Electromagnetic fields and the heat of a metal oxide varistor (MOV), in which a lightning impulse current flows, are calculated using the finite-difference time-domain (FDTD) method.
Tokuya Tanaka +3 more
doaj +4 more sources
Mathematical Model Predicting the Heat and Power Dissipated in an Electro-Conductive Contact in a Hybrid Woven Fabric [PDF]
AUTEX Research Journal, 2020 Electro-conductive (EC) yarns can be woven into a hybrid fabric to enable electrical current to flow through the fabric from one component A to another component B. These hybrid fabrics form the bases of woven e-textiles.
Hertleer Carla +5 more
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Faulty Phase Identification for Transmission Line with Metal Oxide Varistor-protected Series Compensator [PDF]
Journal of Modern Power Systems and Clean Energy, 2021 The nonlinear operation of metal oxide varistor (MOV)-protected series compensator in transmission lines introduces complications into fault detection approaches.
Mohammed Hussien Hassan Musa +3 more
doaj +2 more sources
Superior performing nano‐enabled metal oxide varistors [PDF]
International Journal of Ceramic Engineering & Science, 2019 AbstractCommercial metal oxide varistor devices are subject to nonuniformity, defects and coarse grain size, low working voltage, high leakage current, and mechanical cracking issues. This work tempted to make use of nanopowders and alternative sintering processes to achieve uniform microstructure and superior varistor performance.
Daniel Q. Tan
openaire +2 more sources
Analysis of Metal Oxide Varistor Arresters for Protection of Multiconductor Transmission Lines Using Unconditionally-Stable Crank–Nicolson FDTD [PDF]
Energies, 2020 Surge arresters may represent an efficient choice for limiting lightning surge effects, significantly reducing the outage rate of power lines. The present work firstly presents an efficient numerical approach suitable for insulation coordination studies ...
Erika Stracqualursi +6 more
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Preliminary study on pulse width adjustable pulse generator based on the magnetic switch and metal-oxide varistor [PDF]
AIP Advances, 2018 The pulsed power technology has been applied to many defense and industrial fields. Different applications have different demands on the parameters of the pulsed power systems. However, the parameters of the current pulsed power systems are usually fixed
Yancheng Cui +5 more
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Reliable directional relaying for T-Connected Series-Compensated transmission lines [PDF]
Scientific ReportsThis article introduces an extensive directional relaying algorithm designed for series-compensated transmission lines. The proposed algorithm relies on observing the locus of the calculated impedance of the change of the positive-sequence circuit.
Mahmoud A. Elsadd +2 more
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Case Study about the Energy Absorption Capacity of Metal Oxide Varistors with Thermal Coupling [PDF]
Energies, 2019 Metal oxide varistors are applied today inside modern surge arresters for overvoltage protection for all voltage levels. Their main issue is the thermal activation of their crossing current, which could lead to complete destruction by thermal runaway ...
Flaviu Mihai Frigura-Iliasa +3 more
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Research on electrothermal characteristics of metal oxide varistor based on multi‐physical fields
IET Generation, Transmission & Distribution, 2022 The electrothermal characteristics of metal oxide varistor (MOV), closely related to its microstructure, are important for studying its failure mechanism.
Qibin Zhou +4 more
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