Results 11 to 20 of about 358 (179)

Magnetic resonance imaging safety-driven, heat-mitigating design for a magnetic resonance imaging-guided, magnetically actuated robotic catheter. [PDF]

open access: yesMed Phys
Abstract Background Metallic components in magnetic resonance imaging (MRI)−guided robotic catheters, such as leadwires and microcoils, can interact with the scanner's radiofrequency (RF) fields, causing heating via the antenna effect and Joule heating, leading to localized temperature rises and an increased risk of thermal injury.
Tuna EE   +8 more
europepmc   +2 more sources

High Ampacity Carbon Nanotube Materials. [PDF]

open access: yesNanomaterials (Basel), 2019
Constant evolution of technology is leading to the improvement of electronical devices. Smaller, lighter, faster, are but a few of the properties that have been constantly improved, but these developments come hand in hand with negative downsides. In the case of miniaturization, this shortcoming is found in the inherent property of conducting materials—
Mokry G   +4 more
europepmc   +6 more sources

Investigation on Ampacity for Direct Burial Low-Voltage Power Cables [PDF]

open access: yesInternational Journal of Innovative Solutions in Engineering
Generally, cable ampacity is the physically allowable continuous current that a cable can carry under real installation conditions. Allowable continuous current is the current in a conductor limited by the temperature rise in the insulation.
Ivan Ramljak, Marko Blažević
doaj   +1 more source

Optimization of Thermal Backfill Configurations for Desired High-Voltage Power Cables Ampacity

open access: yesEnergies, 2021
The ampacity of high-voltage power cables depends, among others, on their core cross-sectional area as well as thermal resistivity of the thermal backfill surrounding the cables. The cross-sectional area of the power cables’ core is selected according to
Stanislaw Czapp, Filip Ratkowski
doaj   +1 more source

Dynamic Rating Management of Overhead Transmission Lines Operating under Multiple Weather Conditions

open access: yesEnergies, 2021
Integration of a large number of renewable systems produces line congestions, resulting in a problem for distribution companies, since the lines are not capable of transporting all the energy that is generated. Both environmental and economic constraints
Raquel Martinez   +6 more
doaj   +1 more source

An Enhanced Algorithm for Conventional Protection Devices of Transmission Lines With DTLR

open access: yesIEEE Access, 2021
As the installed capacity of renewable generation continues to increase nowadays to satisfy both emissions and economic requirements, the nature of intermittent generation results in a need to further increase transmission capacity.
Elsaeed Ali, Andrew M. Knight
doaj   +1 more source

Ampacity of power cables exposed to solar radiation – recommendations of standards vs. CFD simulations

open access: yesE3S Web of Conferences, 2018
Ampacity of power cables strictly depends on the ambient conditions. It is very important whether a cable is buried in soil, installed in the air or placed in ducts. When a cable is installed in free air, potential solar radiation has the dominant impact
Czapp Stanislaw   +3 more
doaj   +1 more source

Influence of structural characteristics on cable ampacity and electrical property for cross-linked polyethylene (XLPE) cable

open access: yesAIP Advances, 2021
The influence of structural characteristics on the cable ampacity and electrical property of the cross-linked polyethylene (XLPE) cable was presented in this paper.
ZhiHui Xu   +3 more
doaj   +1 more source

Extreme Quantiles Dynamic Line Rating Forecasts and Application on Network Operation

open access: yesEnergies, 2020
This paper presents a study on dynamic line rating (DLR) forecasting procedure aimed at developing a new methodology able to forecast future ampacity values for rare and extreme events.
Romain Dupin   +4 more
doaj   +1 more source

Study on Reactive Power Compensation Strategies for Long Distance Submarine Cables Considering Electrothermal Coordination

open access: yesJournal of Marine Science and Engineering, 2021
Long-distance high voltage alternating current (AC) submarine cables are widely used to connect offshore wind farms and land power grids. However, the transmission capacity of the submarine cable is limited by the capacitive charging current.
Gang Liu   +3 more
doaj   +1 more source

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