Results 61 to 70 of about 181 (134)

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

A novel method for predicting the lifetime of MOV

, 2004
The paper presents a methodology for predicting the lifetime of metal-oxide varistor (MOV) which is widely used as a protective material in high-voltage equipment.
Zhou, Chengke, Wen, Yuanfang
core  

Experimental studies on the use of MOV in transformer windings inner protection

, 2005
This paper presents experimental investigations into the principle, connection schemes, and the use of a metal oxide varistor (MOV) in transformer winding inner protection. Experiments have been carried out on model transformer and on practical extremely
Zhou, Chengke, Yuanfang, Wen
core  

Improvement of Surge Protection by Using an AlGaN/GaN-Based Metal-Semiconductor-Metal Two-Dimensional Electron Gas Varactor

, 2013
In this paper, a varactor with metal-semiconductor-metal diodes on top of the (NH4)(2)S/P2S5-treated AlGaN/GaN two-dimensional electron gas epitaxial structure (MSM-2DEG) is proposed to the surge protection for the first time. The sulfur-treated MSM-2DEG
Cheng, Chun Yu, Das, Atanu, Lin, Ching Chi, Chang, Liann Be, Ferng, Yi Cherng   +4 more
core   +2 more sources

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

Ferroresonance Elimination in 275kV Substation [PDF]

, 2020
This work studies the non-conventional ferroresonance oscillation in the 275kV substation. Voltage transformer (VT) which is used in this substation has a 100VA capacity and magnetization characteristic of it was modeled by single-value two-term ...
Hamid Radmanesh
core  

MEDIUM VOLTAGE DC SOLID STATE CIRCUIT BREAKER BENCH TEST [PDF]

, 2022
Next generation fleets will rely on medium-voltage direct-current (MVDC) electric power distribution systems utilizing high power density and high-efficiency components. One key gap to make such MVDC systems feasible is a super-fast, high-efficiency, and
Brandt, Jonathan J.
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  

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

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