Results 1 to 10 of about 22,042 (209)
A New Contact Structure and Dielectric Recovery Characteristics of the Fast DC Current-Limiting Circuit Breaker [PDF]
SensorsIn order to solve the problem of slow dielectric recovery caused by large arc energy when interrupting a high rising rate fault current in a fast DC current-limiting circuit breaker (FDCCLCB), a new contact structure with multi-point static contacts in ...
Zhiyong Lv +6 more
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New multi-injection commutation topology for circuit breakers of HVDC transmission lines [PDF]
Scientific ReportsPower-sharing between countries has an essential effect on increasing the power system’s reliability and allowing a resilient energy market. High voltage direct current (HVDC) transmission systems are preferable for long-distance transmission to decrease
Fady Wadie, Mahmoud Elsisi, Tamer Eliyan
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Chromatographic analysis and monitoring of fault gases in substation using ZIF-8 coated capillary column [PDF]
Frontiers in ChemistryThis study developed a ZIF-8-coated capillary gas chromatography column for the efficient separation of critical fault gases in electrical substations.
Hua Mao +19 more
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Detecting Arcing Faults in Switchgear by Using Deep Learning Techniques
Applied Sciences, 2023 Switchgear and control gear are susceptible to arc problems that arise from slowly developing defects such as partial discharge, arcing, and heating due to faulty connections. These issues can now be detected and monitored using modern technology.
Yaseen Ahmed Mohammed Alsumaidaee +7 more
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IET Generation, Transmission & Distribution, 2021 Online non‐invasive methods to assess circuit breaker condition have been under consideration in recent years. The combination of the arcing time and the short‐circuit current recorded by protective relays can be utilized to assess the degrading impact ...
Milad Mohammadhosein +3 more
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Scientific Reports, 2022 Arcing is a ubiquitous phenomenon and a crucial issue in high-voltage applied systems, especially low-temperature plasma (LTP) engineering. Although arcing in LTPs has attracted interest due to the severe damage it can cause, its underlying mechanism has
Si-jun Kim +7 more
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Switching Arc Energy Limitation Approach for LV Circuit Breakers
Energies, 2021 This paper presents an experimentally verified approach to deriving switching arc energy limitations for low-voltage (LV) circuit breakers (CBs). Air-insulated contactors equipped with additional vacuum-insulated (VI) arcing contacts were tested for AC ...
Dariusz Smugala, Michal Bonk
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Arc erosion characteristics of DC contactor contacts
电力工程技术, 2023 The arc is generated upon contact breaking-off resulting in surface erosion in the terminals and affecting the performance of electrical contact. As there is no natural zero crossing point in the DC power supply system, the erosion caused by arcs is ...
WANG Haitao, YANG Bo
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Arc Routing with Time-Dependent Travel Times and Paths [PDF]
Transportation Science, 2021 Vehicle routing algorithms usually reformulate the road network into a complete graph in which each arc represents the shortest path between two locations. Studies on time-dependent routing followed this model and therefore defined the speed functions on the complete graph.
Thibaut Vidal +3 more
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Study of Arc Parameters of AC Relays Operating under Distorted Supply Voltage Conditions
Energies, 2020 The paper presents a procedure for measuring and analyzing the switching arc parameters occurring in air-insulated low voltage (LV) relays operating in distorted supply voltage conditions.
Dariusz Smugala, Michal Bonk
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