Results 61 to 70 of about 2,386,087 (130)

Advancements in Z‐Source Solid‐State Circuit Breakers for Enhanced Protection of DC Distribution Networks: A Comprehensive Review

Active and Passive Electronic Components, Volume 2024, Issue 1, 2024.
DC technologies constitute essential components within the scope of DC distribution networks. All DC networks confront inherent threats, such as DC short‐circuit faults, necessitating robust protective measures. Utilizing DC circuit breakers (DCCBs) emerges as a pivotal strategy for safeguarding these networks.
Sabah Daniar, Amirhossein Khosravi Sarvenoee, Yuh-Shyan Hwang   +2 more
wiley   +1 more source

Porosity through reduction in metal oxides [PDF]

, 2008
Routes to porous materials with nanoscale dimensions have been investigated. In the first example presented, porous manganese oxide has been prepared by leaching Ni metal from a nickel-manganese oxide precursor via reduction.
Seshadri, R., Shoemaker, D.P., Corr, S.A.   +2 more
core   +1 more source

Design and performance evaluation of low-voltage solid-state DCCB using capacitor-based surge mitigation techniques

Power Electronic Devices and Components
This article conducts practical tests on four different configurations of solid-state DC circuit breakers (SS-DCCBs), investigating fault detection and circuit interruption phenomena in DC systems.
Mehdi Moradian, Tek Tjing Lie, Kosala Gunawardane   +2 more
doaj   +1 more source

Lightning Surge Immunity of LED Road Luminaires: A Comparative Study of Hybrid SPD, EMI Filter, and TVS-Diode Protection Strategies

IEEE Access
This study presents an experimental evaluation of surge protection performance of a LED road luminaire subjected to standardized 8/ $20\mu $ s impulse stress.
Vasilios P. Androvitsaneas
doaj   +1 more source

The effects of fast rise multiple lightning impulse on the electrical breakdown characteristics of MOV [PDF]

, 2006
The behavior and performance of lightning protective devices such as metal oxide varistor under the application of multiple lightning impulses are different from the standard single stroke test.
Sin, Chock Tean
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A statistical analysis of metal oxide varistor current under distorted supply voltage conditions [PDF]

, 2014
: Leakage current monitoring is still relied upon when on-site condition assessment or stability analysis of metal oxide varistors is to be conducted. The non-availability of adequate testing equipment, capable of directly measuring resistive component ...
Pitshou Bokoro, Ian Jandrell, Bokoro, Pitshou, Hove, Miidzo, Miidzo Hove, Jandrell, Ian   +5 more
core   +1 more source

Design and synthesis of metal oxide–polymer composites

, 2022
Recently, metal oxide-polymer composites have received significant attention in many industrial fields. The combination of metal oxides (commonly used TiO2, ZnO, Fe3O4, and Al2O3) with a polymer matrix governs to produce high-performance metal oxide ...
Deveci, Hüseyin, Huseyin Deveci, Kaya Güzel, Gülcihan, Gulcihan Guzel Kaya   +3 more
core   +1 more source

Recovery of Antimony: A Laboratory Study on the Thermal Decomposition and Carbothermal Reduction of Sb(III), Bi(III), Zn(II) Oxides, and Antimony Compounds from Metal Oxide Varistors [PDF]

, 2018
As antimony is typically present in industrial and commercial products only in small amounts, the concentration of antimony in waste types is low and a limited amount of antimony is currently recycled. One product relatively rich in antimony is the metal
Steenari, Britt-Marie,, Toni Karlsson, Forsgren, Christer,, Forsgren, Christer, Karlsson, Toni,, Britt-Marie Steenari, Karlsson, Toni, Christer Forsgren, Steenari, Britt-Marie   +8 more
core   +1 more source

A DC SSCB With Range-Limited Parallel Operation Switches and a Snubber Circuit Utilizing Inverse Current Injection

IEEE Access
Although many snubber circuits have been studied, research on circuits that effectively suppress surge voltage while supporting bidirectional operation remains relatively limited.
Jae-Seong Jo, Sun-Pil Kim, Sang-Hyeok Lee, Sung-Geun Song, Feel-Soon Kang   +4 more
doaj   +1 more source

Analysis of varistor behaviour under DC overvoltages [PDF]

, 2019
V tem diplomskem delu sem se posvetil časovnemu poteku električnega toka skozi energetski metaloksidni varistor (MOV) ob pojavu časnih prenapetosti, do katerih lahko pride v sistemu.
JAVORNIK, ŽAN
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