Results 91 to 100 of about 2,008 (171)

First and subsequent return stroke properties of cloud-to-ground lightning [PDF]

open access: yes
Lightning properties obtained by a network of magnetic direction finders and by electric field measurements for distances from 50 to 500 km are compared for three summer thunderstorms in Sweden.
Lundquist, Stig, Namasivayam, S.
core   +1 more source

A Review of Voltage-Clamping Methods for Solid-State Circuit Breakers [PDF]

open access: yes
In recent years, the interest in DC systems has increased dramatically because of some key advantages, in terms of efficiency and reliability, that this technology can offer compared to AC systems in applications such as shipboard distribution, more ...
Gregis G.   +3 more
core   +1 more source

Novel current-limiting strategy for solid-state circuit breakers (SSCB) without additional impedance [PDF]

open access: yes
Current-limiting strategies for solid-state circuit breaker (SSCB) without adding impedance is introduced in this paper. With the current limitation of novel phase-shifting method, the advantages are simple hardware structure, relatively low cost, no ...
Castellazzi, Alberto   +4 more
core  

Overload protection for AC-DC transfer measurement standards [PDF]

open access: yes, 2020
: Electrical transient overloads (ETOs) are inherent to electrical and electronic systems, especially those that are composed of semiconductor materials.
Kgakatsi, Thato Ernest
core   +1 more source

Analysis and Implementation of the Crowbar Clamping Circuit for Surge Voltage Reduction in the DC Solid-State Circuit Breaker

open access: yesIEEE Access
The DC Solid-State Circuit Breaker (SSCB) is usually used to prevent damage to sensitive equipment and ensure system stability by rapidly interrupting fault currents and improving safety.
Phanit Sok   +2 more
doaj   +1 more source

The behaviour and performance of metal oxide varistor under the application of multiple lightning impulses / Mohd Aizad Safwan Abdul Majid [PDF]

open access: yes, 2010
The behavior and performance of lightning protective devices such as the metal oxide varistor (MOV) under the application of multiple lightning impulses are different from that of the standard single stroke test.
Abdul Majid, Mohd Aizad Safwan
core  

Enhancing Current Sharing in Metal Oxide Varistors Using Dynamic U-I Characteristic Analysis [PDF]

open access: yes
Metal oxide varistors (MOVs) are widely used as protective elements in power electronics (PEs) to clamp overvoltage and dissipate energy. However, the conflict between the increasing power capacity of PEs and the limited energy-handling capacity of ...
Long, Chen, Wu, Yi, Wu, Yifei, Xiao, Yu
core   +1 more source

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

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  

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