Results 1 to 10 of about 448 (266)

Development and Testing of a 252 kV/2500 A-40 kA Multi-Break Bus-Coupler Fast Vacuum Circuit Breaker

open access: yesEnergies, 2021
It is effective to open the bus-coupler circuit breaker in case of a short-circuit fault. A fast vacuum circuit breaker (FVCB) is an ideal bus-coupler circuit breaker due to its high velocity.
Kui Ma   +7 more
doaj   +3 more sources

Simulation and Protection of Reignition Overvoltage in Wind Farm Considering Microscopic Dielectric Recovery Process of Vacuum Circuit Breaker

open access: yesEnergies, 2023
The high amplitude and steep overvoltage generated by the breaking of the vacuum circuit breaker in the wind farm damages the inter-turn insulation of the transformer.
Ziheng Pu   +4 more
doaj   +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

Restrike characteristics of vacuum circuit breaker in its opening process under DC voltage

open access: yesIET Science, Measurement & Technology, 2023
The restrike of vacuum circuit breaker during the breaking process causes overvoltage and intensifies the insulation deterioration of high‐voltage equipment. To solve this problem, the vacuum breaker aging test method and the restrike characteristics are
Jixing Sun   +8 more
doaj   +1 more source

Research on the action characteristics and breaking control of 100 kA series double break DC vacuum circuit breaker for CRAFT quench protection system

open access: yesAIP Advances, 2023
The DC vacuum circuit breaker plays an important role in the quench protection system of the Comprehensive Research Facility for Fusion Technology (CRAFT) project.
Xingguang Hu   +5 more
doaj   +1 more source

Online Detection of Vacuum Level of Circuit Breaker Based on Terahertz Wave Return Loss

open access: yesJournal of Harbin University of Science and Technology, 2022
For the online detection of vacuum degree in circuit breaker interrupter chamber, based on the principle of terahertz detection technology, the method of online detection of vacuum degree in circuit breaker using terahertz wave return loss is adopted ...
LUO Hong-hong   +3 more
doaj   +1 more source

A Novel Control Strategy of Phase-Controlled Switching Technology for Vacuum Circuit Breaker

open access: yesIEEE Access, 2022
The opening and closing of a vacuum circuit breaker in the selected phase of the system voltage and the associated electrical equipment plug in or disconnect the electrical system with minimal impact on itself and the system.
Aimin Liu   +3 more
doaj   +1 more source

Dynamic Model of Medium Voltage Vacuum Circuit Breaker and Induction Motor for Switching Transients Simulation Using Clark Transformation

open access: yesEnergies, 2023
A derivation of the dynamic model of a medium voltage vacuum circuit breaker and induction motor in space vectors in coordinates αβ0 allow us to model switching transients in various dynamic states of the motor.
Jan Pígl, Radoslav Cipín
doaj   +1 more source

A fast LVDC vacuum hybrid circuit breaker: Dielectric recovery and design consideration

open access: yesIET Generation, Transmission & Distribution, 2021
Aiming at the fast protection requirements of electrical ships LVDC distribution system, this paper studies a topology of unidirectional vacuum hybrid circuit breaker.
Siqi Liu   +4 more
doaj   +1 more source

PENGEMBANGAN MEDIA OBYEK 3D VACUUM CIRCUIT BREAKER MEMANFAATKAN PIRAMIDA HOLOGRAM

open access: yesJurnal Kajian Teknologi Pendidikan, 2019
Media obyek 3 dimensi digital vacuum circuit breaker memanfaatkan pirmida hologram adalah media yang menampilkan obyek tiruan yaitu vacuum circuit breaker berbentuk digital grafis memanfaatkan piramida hologram.Tujuan penelitian ini untuk menghasilkan ...
Dana Kurniawan   +2 more
doaj   +1 more source

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