Results 41 to 50 of about 22,491 (267)

Research on temperature rise characteristics of medium voltage gas-filled switchgear in high altitude areas

open access: yesDiance yu yibiao
Gas-filled switchgear is widely used in high altitude areas of China due to its wide adaptability and high reliability. Due to the reduction of atmospheric pressure in high altitude areas, the air cooling capacity is reduced, so the gas-filled switchgear
WANG Hao   +5 more
doaj   +1 more source

Practical applications of data mining in plant monitoring and diagnostics [PDF]

open access: yes, 2007
Using available expert knowledge in conjunction with a structured process of data mining, characteristics observed in captured condition monitoring data, representing characteristics of plant operation may be understood, explained and quantified ...
McArthur, Stephen D. J.   +2 more
core   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

open access: yesHigh Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong   +6 more
wiley   +1 more source

Audio General Recognition of Partial Discharge and Mechanical Defects in Switchgear Using a Smartphone

open access: yesApplied Sciences, 2023
Mechanical defects and partial discharge (PD) defects can appear in the indoor switchgear of substations or distribution stations, making the switchgear a safety hazard. However, traditional acoustic methods detect and identify these two types of defects
Dongyun Dai   +5 more
doaj   +1 more source

RAGLRO: Retrieval‐Augmented Generation With Large Language Models for Robotic Operations

open access: yesCAAI Transactions on Intelligence Technology, Volume 11, Issue 2, Page 385-395, April 2026.
ABSTRACT To enable autonomous operations in complex industrial environments, this paper proposes retrieval‐augmented generation with large language models for robotic operations (RAGLRO), a robotic framework specifically designed for power switchgear operation tasks.
Wenrui Wang   +6 more
wiley   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

open access: yesHigh Voltage, Volume 11, Issue 2, Page 317-344, April 2026.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi   +3 more
wiley   +1 more source

Investigation of the Impact of XLPE Cable Ageing on Impedance Mismatch Characteristics and Unbalanced Behaviour in Hybrid Operation Systems

open access: yesHigh Voltage, Volume 11, Issue 2, Page 544-555, April 2026.
ABSTRACT In the Hainan–Guangdong interconnection project, oil leakage in oil‐filled cables required replacing the faulty core with a single core from a three‐core cross‐linked polyethylene (XLPE) cable, leading to mixed operation of XLPE and oil‐filled cables.
Liang Zou   +4 more
wiley   +1 more source

Seismic evaluation of ±800 kV UHVDC disconnect switch by shake table test

open access: yesThe Journal of Engineering, 2019
Disconnect switches, the widely used electrical substation apparatuses, however, were severely damaged in several earthquakes, causing huge economic losses.
Jiayi Wen, Qiang Xie
doaj   +1 more source

Research on Power Frequency Insulation Properties and Configurations of CF3SO2F Gas Mixture for Industrial Applications

open access: yesHigh Voltage, Volume 11, Issue 2, Page 556-563, April 2026.
ABSTRACT The breakdown characteristics of the novel eco‐friendly insulating gas CF3SO2F are fundamental to the design of gas‐insulated equipment. In this paper, the gas mixture parameters for CF3SO2F were optimised for different ambient temperatures in order to ascertain the insulation performance and liquefaction temperature constraints.
Shubo Ren   +5 more
wiley   +1 more source

Partial discharges measurement by UHF method [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2020
The unconventional UHF (Ultra High Frequency) method of measuring partial discharges (PD) is based on measuring electromagnetic waves (EM) in the UHF frequency band (300-3000) MHz, using appropriate antennas.
Malešević Nevena   +3 more
doaj  

Home - About - Disclaimer - Privacy