Results 91 to 100 of about 14,323 (250)
, 2023 Este trabalho de graduação conduz uma análise comparativa minuciosa entre subestações convencionais e subestações com process bus, investigando suas características, desempenho e destacando os benefícios e desafios associados a cada abordagem ...
Santos, Tarcísio Rodrigues de Paula [UNESP]
core
Electrical engineering & Electromechanics, 2014 The analysis made has shown expediency of modernization rather than reconstruction of earth electrodes, after inspection of long operating substations grounding grids, via building a two-level structure.
I.V. Nizhevskiy, V.I. Nizhevskiy
doaj
The Journal of Engineering, 2019 Electrical power control and management is the key towards improving the efficiency and security of energy supply. Proper management would help in safely diversifying energy supplies, reducing energy consumption during peak load, and improving grid ...
Shady S. Refaat, Amira Mohamed
doaj +1 more source
High Voltage, EarlyView.ABSTRACT Strong wind–sand weather in Xinjiang threatens power grid safety by increasing transmission line tripping risks. Existing studies focus on sand polarization but neglect the coupled influence of high‐speed airflow and charged sand on gap discharge characteristics.
Jianghai Geng +8 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The disintegration behaviour of ice‐melting droplets aggravates the discharge risk of ice‐covered insulators and the disintegration characteristics of droplets at applied voltages exceeding the critical discharge voltage lack in‐depth study.
Lin Yang +6 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT The thermal state of underground power cables can be monitored based on the temperature dependency of the dielectric permittivity of the insulation material. The resulting temperature‐dependent wave velocity is used as a thermometric property. To this end, the signal propagation time along a cable of an injected signal is determined.
Peter Wouters +2 more
wiley +1 more source
High Voltage, EarlyView.ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi +2 more
wiley +1 more source
Reduction of Higher Harmonic Components at DC Traction Substations
, 2020 UKR: У даній роботі розглядається проблема зниження вищих гармонік, що виникла у зв'язку з застосуванням напівпровідникової перетворювальної техніки з нелінійною вольт-амперною характеристикою.
Тижбір, Христина Іванівна
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Heat load patterns in district heating substations
, 2013 Future smart energy grids will require more information exchange between interfaces in the energy system. One interface where dearth of information exists is in district heating substations, being the interfaces between the distribution network and the ...
Gadd, Henrik +3 more
core +1 more source
High Voltage, EarlyView.ABSTRACT Unmanned Aerial Vehicle (UAV) inspection of overhead transmission line composite insulators allows for the rapid acquisition of large amounts of infrared images of insulators in service, which can be used to analyse their operational status. However, efficiently and accurately analysing these images remains a challenge.
Zhenan Zhou +7 more
wiley +1 more source