Magneto-Thermo-Structural Analysis of Power Transformers under Inrush and Short Circuit Conditions
Energies, 2021 The main equipment responsible for connection and transmission of electric power from generating centers to consumers are power transformers. This type of equipment is subject to various types of faults that can affect its components, in some cases also ...
Antonio Roniel Marques de Sousa +4 more
doaj +1 more source
Application of multiple resistive superconducting fault-current limiters for fast fault detection in highly interconnected distribution systems [PDF]
, 2013 Superconducting fault-current limiters (SFCLs) offer several benefits for electrical distribution systems, especially with increasing distributed generation and the requirements for better network reliability and efficiency.
Blair, Steven Macpherson +3 more
core +1 more source
The Journal of Engineering, 2019 The 110 V lead-acid battery pack is widely used as the DC power supply for the load control of power plants. If the low-voltage DC circuit breaker (LVDCCB) at the DC side of its charging device cannot operate in time when the fault current is flowing in ...
Fang Yao +3 more
doaj +1 more source
Inventions, 2022 The contribution current of an inverter-interfaced distributed generator unit during a fault is one of the significant challenges for two modes: grid-connected and isolated AC microgrid.
Mahmoud Aref +5 more
doaj +1 more source
Multiple-fault detection methodology based on vibration and current analysis applied to bearings in induction motors and gearboxes on the kinematic chain [PDF]
, 2016 © 2016 Juan Jose Saucedo-Dorantes et al. Gearboxes and induction motors are important components in industrial applications and their monitoring condition is critical in the industrial sector so as to reduce costs and maintenance downtimes.
Delgado Prieto, Miquel +4 more
core +2 more sources
Control-based fault current limiter for modular multilevel voltage-source converters
International Journal of Electrical Power & Energy Systems, 2020 The sharp rise in short-circuit currents of voltage-source converters is still a challenge for DC grid reliability, which imposes stringent requirements on DC breakers. Therefore, fault current limiters are used for slowing down the rise in short-circuit
V. A. Lacerda +5 more
semanticscholar +1 more source
Wavelet-based EMTR method for fault location of VSC-HVDC transmission lines
The Journal of Engineering, 2018 A wavelet-based electromagnetic time reversal method for locating faults in voltage source converter-high-voltage direct current (VSC-HVDC) transmission lines is proposed in this study.
Xipeng Zhang +4 more
doaj +1 more source
Bridge‐type fault current limiter and hybrid breaker for HVDC grids applications
IET Generation, Transmission & Distribution, 2020 The fast raising nature of DC fault currents and sensitivity of high-voltage DC (HVDC) power converters to DC faults is critical protection issues. On the other hand, DC fault current does not meet zero; which causes DC to fault current breaking process ...
Amir Heidary +4 more
semanticscholar +1 more source
Two basic ways to realise DC circuit breakers
The Journal of Engineering, 2019 As a key element of the DC grid, the technology of DC circuit breakers (DCCBs) still have difficulty to be widely used due to its large cost and volume. This paper studies the basic principle and its realisation methods for DCCBs.
Zheng Xu +3 more
doaj +1 more source
A Zero Crossing Hybrid Bidirectional DC Circuit Breaker for HVDC Transmission Systems
Energies, 2021 With the increasing demand for renewable energy power generation systems, high-power DC transmission technology is drawing considerable attention. As a result, stability issues associated with high power DC transmission have been highlighted.
Geon Kim +4 more
doaj +1 more source