Results 21 to 30 of about 18,954 (240)

Generalised resilience models for power systems and dependent infrastructure during extreme events

open access: yesIET Smart Grid, 2019
This study presents a generalised critical infrastructures resilience model for extreme events with a focus on power grids. Infrastructures are modelled as three domains – physical, cyber, and human.
Vaidyanathan Krishnamurthy   +5 more
doaj   +1 more source

Active Reduction of Short-Circuit Current in Power Distribution Systems

open access: yesEnergies, 2020
In this paper, a new concept of short-circuit current (SCC) reduction for power distribution systems is presented and analyzed. Conventional fault current limiters (FCLs) are connected in series with a circuit breaker (CB) that is required to limit the ...
Esteban Pulido   +3 more
doaj   +1 more source

Selecting Communication Technologies for an Electrical Substation Based on the AHP

open access: yesIEEE Access, 2023
Traditional communication technologies for distribution substations will soon have difficulties meeting the needs of emerging applications. This is due to exponential population growth and future energy demands, necessitating a reliable and fast response
Nayli Adriana Azhar   +9 more
doaj   +1 more source

Effects of Aging on Condition of In-Service Transformer Oil: The Study Case of 150 kV/20 kV Substations in Crete

open access: yesEnergies
The effect of aging on the condition of the oil and the insulating paper of transformers, based on the oil analysis of a fleet of 150 kV/20 kV power transformers, is presented in this paper.
Nikolaos Mavrikakis, Kiriakos Siderakis
doaj   +1 more source

Impact analysis of traction loads on power grid based on probabilistic three-phases load flow

open access: yesThe Journal of Engineering, 2019
Electrified railway traction power supply system is directly powered by 110 kV or 220 kV (some 330 kV) high-voltage power grid. The uncertainty, non-linearity, and asymmetry of traction loads like the electric locomotives and electric multiple units ...
Yulong Che   +5 more
doaj   +1 more source

Condition Assessment of Field-Aged Composite Insulators Following Incidents of Insulator Flashunder

open access: yesEnergies
A condition assessment of a group of field-aged insulators operated for only 6 years on the island of Rhodes after incidents of intense electrical activity is presented in this paper.
Nikolaos Mavrikakis, Kiriakos Siderakis
doaj   +1 more source

Environmentally Friendly Compact Air-Insulated High-Voltage Substations

open access: yesEnergies, 2018
This paper investigates the possible options for achieving a substantial reduction in a substation footprint using air-insulated switchgear as a more environmentally-friendly alternative to gas-insulated substations that use SF6 gas.
Maurizio Albano   +3 more
doaj   +1 more source

Load flow, short circuit and motor starting studies in electrical power substations.

open access: yesITEGAM-JETIA
Power system studies are essential for the proper planning and design of electrical power substations. This paper presents the load flow, short circuit, and motor starting studies for 33/6.6/0.44 kV electrical power substation.
Mohan Muniappan
doaj   +1 more source

Research on automatic location and recognition of insulators in substation based on YOLOv3

open access: yesHigh Voltage, 2019
With the development of a smart grid, the automatic location of power equipment is becoming a trend. In this study, a method for automatic location identification and diagnosis of external power insulation equipment based on YOLOv3 is proposed. This deep
Yunpeng Liu   +6 more
doaj   +1 more source

Automatic Railway Substations [PDF]

open access: yesTransactions of the American Institute of Electrical Engineers, 1920
This paper reviews the broad range of conditions to which railway automatic substations have been applied and also discusses the economies and operating advantages effected by their use. A description is given of the modern equipment with details of its operation. Special reference is made to improvements in design of control apparatus, to the positive
openaire   +2 more sources

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