Results 11 to 20 of about 51,958 (298)

Insulation Resistance and Tracking Index of Circuit Breaker According to the Accelerated Aging Test

open access: yesIEEE Access, 2023
This study examined insulation resistance and tracking index characteristics through the accelerated aging test of low-voltage circuit breakers. The leakage current was found to be influenced by external factors rather than the internal structure ...
Sin-Dong Kang, Jae-Ho Kim
doaj   +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

A current‐limiting DC circuit breaker with power flow control capability

open access: yesIET Generation, Transmission & Distribution, 2022
Power flow controller (PFC), fault current limiter (FCL) and DC circuit breaker (DCCB) are important equipment in the DC grid. There are a large number of power electronic components in these equipment, resulting in high cost.
Shimin Xue   +5 more
doaj   +1 more source

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

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

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

Providing decision support for the condition-based maintenance of circuit breakers through data mining of trip coil current signatures [PDF]

open access: yes, 2007
The focus of this paper centers on the condition assessment of 11kV-33kV distribution circuit breakers from the analysis of their trip coil current signatures captured using an innovative condition monitoring technology developed by others.
Campbell, A.   +4 more
core   +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

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 breaker prognostics using SF6 data [PDF]

open access: yes, 2011
Control decisions within future energy networks may take account of the health and condition of network assets, pushing condition monitoring within the smart grid remit.
Catterson, Victoria   +3 more
core   +1 more source

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