Results 1 to 10 of about 87 (79)
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
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Investigations into Recycling Zinc from Used Metal Oxide Varistors via pH Selective Leaching: Characterization, Leaching, and Residue Analysis [PDF]
The Scientific World Journal, 2015 Metal oxide varistors (MOVs) are a type of resistor with significantly nonlinear current-voltage characteristics commonly used in power lines to protect against overvoltages.
Toni Gutknecht +4 more
doaj +2 more sources
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 +3 more sources
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
doaj +2 more sources
Impulse Life Evaluation Method of MOV Based on Weibull Distribution
IEEE Access, 2021 The working life evaluation of metal oxide varistor (MOV) is always expected by MOV manufacturers and users. In Oct. 2019, the International Electrotechnical Commission (IEC) SC37B established a project team PT 61643–333 led by the author of this ...
Qibin Zhou +3 more
doaj +1 more source
Numerical modelling of MOV with Voronoi network and finite element method
High Voltage, 2021 The electrical and thermal characteristics of metal oxide varistor (MOV) are essential for the study of MOV performance and degradation. This paper provides a modelling method of MOV to simulate its microstructure geometry with the Voronoi network and ...
Qibin Zhou +4 more
doaj +1 more source
Research on electrothermal characteristics of metal oxide varistor based on multiâphysical 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
doaj +1 more source
Leaching Kinetics of Zinc from Metal Oxide Varistors (MOVs) with Sulfuric Acid [PDF]
Metals, 2016 The leaching kinetics of zinc from zinc oxide-based metal oxide varistors (MOVs) was investigated in H2SO4 at atmospheric pressure. Kinetics experiments were carried out at various agitation speeds, particle sizes, initial H2SO4 concentrations, and reaction temperatures.
Youngjin Kim, Jaeryeong Lee
openaire +2 more sources
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 +1 more source
Investigation of Limitations in Passive Voltage Clamping-Based Solid-State DC Circuit Breakers
IEEE Open Journal of Power Electronics, 2022 This paper investigates limitations of passive voltage clamping based dc solid-state circuit breakers (SSCBs). There are two major contributions of this paper.
Shuyan Zhao +4 more
doaj +1 more source