Results 81 to 90 of about 14,343 (257)
The Journal of Engineering, 2019 In hierarchically connected UHV DC projects, the 1000 kV AC filter sub-bank in converter station is provided with two 500 kV circuit breakers. To determine the test DC component decay time constant when breakers break short-circuit current, relevant DC ...
Li Zhenqiang +3 more
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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
110 kV city power substations [PDF]
, 2017 W artykule przedstawiono wybrane aspekty dotyczące realizacji procesu budowy, stosowanych rozwiązań konstrukcyjnych oraz stosowanych systemów sterowania i nadzoru w stacjach elektroenergetycznych 110 kV w aglomeracjach miejskich.
Dołęga, W.
core
This collage shows substations in Sycamore, Rock Springs, Wickenburg, Peoples Valley, Kirkland, and ...
core +2 more sources
ARCADES: analysis of risk from cyberattack against defensive strategies for the power grid
IET Cyber-Physical Systems, 2018 In this study, the authors introduce ARCADES (Analysis of Risk from Cyberattack against DEfensive Strategy), a technique to systematically explore the cybersecurity defence strategies based on contingency rankings in power systems.
Md Touhiduzzaman +3 more
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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
FARIMA model-based communication traffic anomaly detection in intelligent electric power substations
IET Cyber-Physical Systems, 2019 The technological advances of intelligent electric substations have significantly improved the operational performance of power utilities by incorporating advanced monitoring and control functionalities.
Qiang Yang +4 more
doaj +1 more source
An Investigation into Substation Grounding and Its Implementation on Gaza Substation
Energy and Power Engineering, 2011 An investigation into the optimal design of a substation grounding system for the transmission substation in Gaza City, Palestine has been carried out. A research into the most influential parameters on the effectiveness of the substation grid system has been performed and its results have been incorporated into the Gaza case study.
Ahmed Hammuda +2 more
openaire +2 more sources
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
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