Results 101 to 110 of about 457 (219)

The effects of fast rise multiple lightning impulse on the physical and LC Circuit Parameters of MOV [PDF]

, 2006
The behaviour and performance of lightning protective devices such as metal oxide varistor under the application of multiple lightning impulse are different from the standard single stroke test.
Wong, Ing Siong
core  

国际上基于数值仿真计算金属氧化物避雷器的研究进展

Dianci bileiqi, 2018
系统综述了基于数值仿真计算技术在金属氧化物避雷器（metal-oxide surge arresters,MOA）研究中的应用发展。共分3个方面:1)基于等效电路模型的数值仿真计算;2)基于电、机械与热的两或多物理量（场）耦合的金属氧化物电阻片（metal-oxide surge varistor,MOV）数值仿真计算;3)整只MOA的电场、温度场或多物理场耦合的数值仿真计算。对于MOV的建模和仿真计算,将来主要的努力方向是改进数学计算模型,以便可以描述ZnO晶界与时间和温度相关的特性 ...
赵冬一, 李凡, 汤霖
doaj  

A Comprehensive Study on the Quality of Commercially Available Medium Voltage Surge Arresters

IEEE Access
This paper presents a comprehensive study on the quality and reliability of commercially available medium voltage surge arresters, with particular emphasis on their electrical performance and structural degradation under aging conditions.
Kuba Wojcik, Marek Olesz, Leszek S. Litzbarski, Stanislaw Wojtas, Michal J. Winiarski, Daniel Jaworski, Marcin Lapinski, Pawel Lawniczak, Bartlomiej Andrzejewski   +8 more
doaj   +1 more source

Effects of Dopants and Processing Parameters on the Properties of ZnO-V₂O₅-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]

Materials (Basel), 2023
Lungu MV.
europepmc   +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
core  

MOV failure mode identification

, 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., Wiley, Paris, Ioannou, Stelios   +2 more
core  

Return voltage measurements to investigate the degradation of zinc oxide varistor [PDF]

, 2009
Due to their reliability and accuracy, many modern diagnostics based on dielectric voltage response, such as polarization/depolarization current (PDC), voltage decay (VD) and return voltage (RV) measurements, have been used in monitoring ageing processes
Ahmad Noorden, Zulkarnain
core  

DC-SSCB Snubber for Electric Propulsion Ships With Effective Surge Voltage Reduction and Fast Dissipation of Fault Current Energy

IEEE Access
This paper proposes a snubber circuit for SSCB that performs voltage clamping operation in two stages to reduce surge voltage. The surge voltage is suppressed in the first stage using a MOV with low operating initiation and clamping voltages.
Jae-Hun Cha, Guangxu Zhou, Sung-Geun Song, Feel-Soon Kang   +3 more
doaj   +1 more source

Synergistic Effects of Pr₆O₁₁ and Co₃O₄ on Electrical and Microstructure Features of ZnO-BaTiO₃ Varistor Ceramics. [PDF]

Materials (Basel), 2021
Shaifudin MS, Ghazali MSM, Kamaruzzaman WMIWM, Wan Abdullah WR, Kassim S, Ismail NQA, Sa'at NK, Mohd Zaid MH, Mohd Fekeri MF, Matori KA.   +9 more
europepmc   +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