Results 1 to 10 of about 39,891 (249)

Fault Diagnosis of High-Voltage Circuit Breakers Using Mechanism Action Time and Hybrid Classifier

open access: yesIEEE Access, 2019
Accurate fault diagnosis of high-voltage circuit breakers is crucial for the safety of power grids. Mechanism action time, though can reflect the state of high-voltage circuit breakers, is usually difficult to obtain, as multiple sensors are required for
Shuting Wan, Lei Chen
doaj   +1 more source

Circuit breakers with uncertainty about the presence of informed agents: I know what you know . . . I think [PDF]

open access: yes
This study conducts experimental asset markets to examine the effects of circuit breaker rules on market behavior when agents are uncertain about the presence of private information. Our results unequivocally indicate that circuit breakers fail to temper
Bryan K. Church   +2 more
core  

A Survey of Hybrid Circuit Breakers: Component-Level Insights to System-Wide Integration

open access: yesIEEE Open Journal of Power Electronics
This survey provides a comprehensive review of hybrid circuit breakers and their applications in 1 kV to 800 kV, both alternating current and direct current systems.
Yuchen He   +3 more
doaj   +1 more source

Modular multilevel converter with modified half-bridge submodule and arm filter for dc transmission systems with DC fault blocking capability [PDF]

open access: yes, 2018
Although a modular multilevel converter (MMC) is universally accepted as a suitable converter topology for the high voltage dc transmission systems, its dc fault ride performance requires substantial improvement in order to be used in critical ...
Abdelsalam, Ibrahim A.   +3 more
core   +2 more sources

DC protection of a muti-terminal HVDC network featuring offshore wind farms [PDF]

open access: yes, 2017
A protection scheme for DC faults has been designed for a multi-terminal HVDC network used to transfer energy from three large offshore wind farms to shore.
Finney, Stephen   +2 more
core   +3 more sources

Protection and post-fault recovery of large HVDC networks using partitioning and fast-acting DC breakers at strategic locations

open access: yesThe Journal of Engineering, 2019
DC fault protection arrangements for a large multi-terminal HVDC (MTDC) network are proposed where fast-acting DC circuit breakers are only used at strategic locations with the large DC network to be operated interconnected but partitioned into islanded ...
Md Habibur Rahman   +4 more
doaj   +1 more source

Superconducting fault current limiter application in a power-dense marine electrical system [PDF]

open access: yes, 2011
Power-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents.
Blair, Steven Macpherson   +5 more
core   +1 more source

Mechanical performance degradation modelling and prognosis method of high‐voltage circuit breakers considering censored data

open access: yesIET Science, Measurement & Technology
Due to the untimely deployment of sensors and the early retirement of high‐voltage circuit breakers, life‐cycle data is missing, leading to an inability to accurately predict the mechanical performance degradation trend.
Hongshan Zhao, Yanan Qian, Yuehan Qu
doaj   +1 more source

The Analysis of Electrodynamic Forces in Residual Current Circuit Breakers Primary Current Paths During Short-Circuit Tests

open access: yesEnergies
This paper deals with the effect of electrodynamic forces acting on the primary current paths of residual current circuit breakers. This paper consists of a simulation part and an experimental part from the short-circuit tests performed. The experimental
Michał Szulborski   +3 more
doaj   +1 more source

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