Results 31 to 40 of about 1,289,411 (215)
Development of DC Circuit Breakers for Medium-Voltage Electrified Transportation [PDF]
, 2022 Medium-voltage DC (MVDC) distribution is an enabling technology for the electrification of transportation such as aircraft and shipboard. One main obstacle for DC distribution is the lack of adequate circuit fault protection.
Arvin, Trevor Morgan
core +1 more source
Smart protection system for identification and localisation of faults in multi-terminal DC microgrid
IET Smart Grid, 2020 DC microgrid provides the horizontal infrastructures to integrate distributed generation (DG) and loads. Unlike traditional AC systems, DC systems cannot survive or sustain high magnitude fault currents. It makes locating faults very difficult.
Rajeev Kumar Chauhan +2 more
doaj +1 more source
Chengshi guidao jiaotong yanjiuObjective Arc extinction technology for DC (direct current) is one of the design challenges in urban rail transit traction power supply systems. Therefore, it is necessary to analyze the principles of DC opening and arc extinction for main DC fast ...
MENG Junfeng +3 more
doaj +1 more source
Hybrid Z-Source Circuit Breaker with Thomson Coil for MVDC
Energies, 2023 Hybrid circuit breakers are the most promising circuit breakers among DC circuit breakers. Conventional hybrid circuit breakers complete fault current isolation by converting current to IGBT when fault current occurs.
Hyun-Seung Lee +3 more
doaj +1 more source
DC Circuit Breaker Evolution, Design, and Analysis
Energies, 2023 While traditional AC mechanical circuit breakers can protect AC circuits, many other DC power distribution technologies, such as DC microgrids (MGs), yield superior disruption performance, e.g., faster and more reliable switching speeds.
Mehdi Moradian +2 more
doaj +1 more source
A capacitive high voltage DC circuit breaker incorporating a current limiting function
Zhejiang dianliDC circuit breakers， as one of the vital devices for fault clearance in DC power systems， significantly influence the secure and stable operation of the system.
TU Lizhong +4 more
doaj +1 more source
Anode and cathode arc root movement during contact opening at high current [PDF]
, 1999 This paper presents experimental research into the behavior of short circuit break arcs ignited between opening contacts. The investigation is applied to arc chamber geometries commonly used in miniature circuit breakers (MCB).
Peter A. Jeffery +3 more
core +1 more source
Research on current sharing of paralleled IGBTs in different DC breaker circuit topologies
MATEC Web of Conferences, 2016 IGBT modules used in series and parallel to satisfy the requirement in high-power DC circuit breakers are often prone to large-current destruction due to current unbalance between paralleled IGBTs.
Chen Ying, Zhuo Fang
doaj +1 more source
DC interruption characteristic of vacuum circuit breaker
Electrical Engineering in Japan, 2005 AbstractA high‐speed vacuum circuit breaker (HSVCB) has been investigated. HSVCB makes high‐frequency current superimposed on a fault current so that the current is forced to be zero and is interrupted. Its interruption performance is considered to be dependent on the rate of change of the current (di/dt). As a fundamental research, we investigated the
Odaka, Hiromi +5 more
openaire +2 more sources
A Robotic Testing Platform for Pipelined Discovery of Resilient Dielectric Elastomer Actuators
Advanced Science, EarlyView.This work introduces a robotic testing platform enabling high‐throughput, multi‐parameter lifetime mapping of linear dielectric elastomer actuators (DEAs). By integrating programmable high‐voltage control and automated electromechanical measurements, the system identifies material and operating conditions that double actuator lifetime.
Ang (Leo) Li +10 more
wiley +1 more source