Results 81 to 90 of about 2,386,087 (130)

MOV failure mode identification

open access: yes, 2009
A surge protector includes a thermal fuse, a metal oxide varistor electrically connected in series relation to the thermal fuse, and a detection network electrically connected in parallel relation to the thermal fuse and the metal
Stefanakos, Elias L.   +2 more
core  

多种冲击电流下金属氧化物压敏电阻动态模型准确性分析

open access: yesGaoya dianqi
为研究IEEE模型和Pinceti模型对金属氧化物压敏电阻(metal-oxide varistor,MOV)的仿真准确性,以额定电压为150~750 V的6种MOV为对象,理论和试验分析了不同幅值4/10 μs、8/20 μs雷电冲击电流和30/60 μs操作冲击电流下的残压及吸收能量。结果表明,在IEEE模型参数确定中,随操作冲击电流幅值的增大,非线性电阻参考电压取值增大但电感取值减小;在残压预测中,IEEE模型误差为2.6%,较Pinceti模型误差4.6%更准确;在MOV吸收能量估算中 ...
王伟芳   +4 more
doaj  

A Notch Filter-Based Coupling Circuit for UNB and NB PLC Systems. [PDF]

open access: yesSensors (Basel), 2022
da Silva Costa LG   +4 more
europepmc   +1 more source

Preliminary study on pulse width adjustable pulse generator based on the magnetic switch and metal-oxide varistor

open access: yes, 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
Song Li   +5 more
core   +1 more source

Fabrication and characterization of varistor-polymer composite based on zinc oxide [PDF]

open access: yes, 2012
This research focuses on fabricating a varistor-polymer composite based on nanosized ZnO and micro-sized ZnO, and comparing their current-voltage characteristics.
Fatehi, Asma
core   +1 more source

Development of a Power Factor Corrected High Current Supercapacitor Charger for a Surge Resistant UPS [PDF]

open access: yes, 2012
The Uninterrupted Power Supplies (UPSs) provide short term power back up to electrical loads when the mains power fail. Usually UPSs employ battery packs as the energy storage device.
Zhang, Xu
core  

Production of metal oxide nanoparticles

open access: yes, 2007
Particles having at least regions of at least one metal oxide having nano-sized grains are produced by providing particles of a material having an initial, nonequiaxed particle shape, prepg. a mixt.
Edwards, Geoffrey Alan   +2 more
core  

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