Results 11 to 20 of about 646,489 (284)

Environmental Compatible Circuit Breaker Technologies [PDF]

open access: yes, 2021
Recent research and development in the field of high-current circuit breaker technology are devoted to meeting two challenges: the environmental compatibility and new demands on electrical grids caused by the increasing use of renewable energies ...

core   +1 more source

Introduction of an Auxiliary Breaker into the Generator-Transformer Block for Energy Saving in Open Switchgear Circuits of Power Plants

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2023
A need in finding of new ways of energy saving at open switchgears of power plants is substantiated. In order to increase energy saving efficiency, an auxiliary breaker is suggested to be inserted between a transformer of a block and its two high-voltage
A. S. Barukin   +3 more
doaj   +1 more source

Wavelet based analysis of circuit breaker operation [PDF]

open access: yes, 2004
Circuit breaker is an important interrupting device in power system network. It usually has a lifetime about 20 to 40 years. During breaker's service time, maintenance and inspection are imperative duties to achieve its reliable operation.
Ren, Zhifang Jennifer
core   +3 more sources

The applications of anisotropic electrodes in vacuum circuit breakers to increase the switching life [PDF]

open access: yesE3S Web of Conferences, 2021
The article analyzes the disadvantages of the vacuum circuit breaker, the transients that occur during switching, as well as the processes that lead to a decrease in the contact system resource. The simulation of the vacuum circuit breaker electrodes was
Samofalov Yuri   +2 more
doaj   +1 more source

New two chamber transfer switch for 6500 A commutation current

open access: yesGlobal Energy Interconnection, 2018
HVDC transfer switches are used in different locations in electrode lines of HVDC transmission systems for their reconfigurations. They have to carry and commutate currents to the overload currents of HVDC transmission systems, which increased to 6,400A ...
Lutz-Rüdiger Jänicke   +4 more
doaj   +1 more source

Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]

open access: yes, 2010
An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G.   +9 more
core   +1 more source

Effective and efficient circuit breaker analysis

open access: yes, 2011
Worldwide utilities and industries have seen various technological advancements in circuit breaker (CB) testing and analysing. Yet most of the owners underperform the maintenance activity when it comes to circuit breaker maintenance and many limit ...
Habtay, Yehdego, Jeyaraj, S.G.
core   +7 more sources

Short-Circuit Fault Current Calculation Method for the Multi-Terminal DC Grid Considering the DC Circuit Breaker

open access: yesEnergies, 2020
The analysis and calculation of the short-circuit fault current in the DC grid is of great significance to the design and configuration of the converter station and DC circuit breaker parameters.
Haipeng Jia   +5 more
doaj   +1 more source

Circuit breakers for addiction [PDF]

open access: yesInternal Medicine Journal, 2007
AbstractThe phenomenon of addiction is complex, although its expression clinically is relatively straightforward. There is a series of neurophysiological changes that mediate changes in the mesolimbic and mesocortical systems which in turn lead to disturbances in reward mechanisms.
openaire   +2 more sources

Research on the Difference Mechanism of High Voltage Circuit Breaker’s Opening/Closing Coil Current [PDF]

open access: yesE3S Web of Conferences, 2021
High voltage circuit breakers are important protection and control equipment for the power grid. The defects and faults of the circuit breaker seriously affect the safety and stability of the power system.
Su Yi, Lu Yufeng, Zhang Lei, Rao Xiajin
doaj   +1 more source

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