Results 21 to 30 of about 8,801 (231)

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden, Burt, Callavik, Dong Chen, Mitchell, Mohamed Emad Farrag, Oudalov, Waqas Javed, Wu, Xue, Yan Xu, Zhong   +11 more
core   +1 more source

Simulation Analysis for Opening Performance of Medium Voltage Vacuum Circuit Breaker Based on ADAMS and Maxwell

MATEC Web of Conferences, 2017
The circuit breakers play a important role in control and protect the power systemand the vacuum circuit breaker has beenwidely used in the field of medium voltage with its excellent opening performance.Virtual prototyping technology is alsobecamemore ...
Ding Xianliang, Wang Zhiming, Yin Qinlin, Chen Pengwei, Zhou Shijin, Yang Yang   +5 more
doaj   +1 more source

The power application vacuum switch [PDF]

, 1958
Vacuum switching, which has attracted considerable attention recently in the public utility field, is actually far from a new concept.
Sorensen, R. W.
core   +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
Hiromi Odaka, Masataka Yamada, Ryohei Sakuma, Cuie Ding, Eiji Kaneko, Satoru Yanabu   +5 more
openaire   +2 more sources

The effect of water absorption on the dielectric properties of epoxy nanocomposites [PDF]

, 2008
In this research, the influence of water absorption on the dielectric properties of epoxy resin and epoxy micro-composites and nano-composites filled with silica has been studied. Nanocomposites were found to absorb significantly more water than unfilled
Fothergill, J., Rowe, S. W., Zou, C.
core   +1 more source

Graphene-Enhanced CuW Composites for High-Voltage Circuit Breaker Electrical Contacts

Applied Sciences
To address the issue of over-standard short-circuit currents in a power system, it is imperative to enhance the comprehensive performance of the electrical contacts, which serve as the lynchpin of circuit breakers, so as to improve the breaking capacity ...
Tan Liu, Yu Han, Dongchen Jia, Zhen Pang, Yuwei Fu, Zhongxiao Song, Yi Ding   +6 more
doaj   +1 more source

Improving interruption performance of mechanical circuit breakers by controlling pre-current-zero wave shape

High Voltage, 2019
Mechanical circuit breakers (MCBs) are the limiting component for current injection HVDC circuit breakers. Improving their interruption performance reduces requirements for capacitance and inductance needed in the injection circuit and thus space use and
Tim Schultz, Benjamin Hammerich, Benjamin Hammerich, Lorenz Bort, Christian M. Franck, Christian M. Franck   +5 more
doaj   +1 more source

Synthetic test circuit with two‐level voltage source for HVDC circuit breakers

IET Generation, Transmission & Distribution, 2023
In order to ensure the reliable interruption of high voltage direct current circuit breaker (HVDC CB), the breaking test of HVDC CB plays an important role in its performance verification.
Shixin Xiu, Zhisong Long, Ke Qin, Shenli Jia, Qiang Tang, Zongqin Shi, Feifan Zhang   +6 more
doaj   +1 more source

A database ATP simulated waveforms of shunt reactor switching cases with vacuum breakers on motor circuits [PDF]

, 2009
This paper presents a database ATP (Alternative Transient Program) simulated waveforms for shunt reactor switching cases with vacuum breakers in motor circuits following interruption of the starting current.
Kam, Shui-cheong, Ledwich, Gerard
core   +1 more source

Synergistic SnSe2@Ti3C2Tx MXene Heterostructured Separator for Highly Efficient Polysulfide Adsorption, Catalytic Redox Acceleration, and Enhanced Electrochemical Stability in Advanced Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A multifunctional SnSe2@MXene heterostructure coated on a separator serves as a catalytic interlayer in Li‐S batteries. This design synergistically integrates the strong polysulfide adsorption and catalytic activity of SnSe2 with the high electrical conductivity of the MXene matrix, effectively suppressing the shuttle effect and enabling long‐term ...
Amirhossein Mirtaleb, Matija Scekic, Ruigang Wang   +2 more
wiley   +1 more source