Search results for "Normal conditions"

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A Comparison of Special Bonding Techniques for Transmission and Distribution Cables under Normal and Fault Conditions

2021

In this article, a review of the existing special bonding techniques for medium voltage and high-voltage cables is presented. Special bonding techniques have the purpose of reducing sheath currents, thereby limiting copper losses and the reduction of the ampacity of cables. The literature review shows various bonding techniques and how these have evolved over the years thanks to new technologies. Simulations of each technique are performed in MATLAB/Simulink, to compare their strengths and drawbacks both under normal conditions and in the presence of a single-line-to-ground fault.

Normal conditionsComputer science020209 energy020208 electrical & electronic engineeringMechanical engineering02 engineering and technologyspecial bonding techniquesFault (power engineering)Industrial and Manufacturing EngineeringCross bondingSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaTransmission (telecommunications)Control and Systems EngineeringElectromagnetic coilreactance bondingHardware_INTEGRATEDCIRCUITS0202 electrical engineering electronic engineering information engineeringsheath bonding transformersAmpacityElectrical and Electronic EngineeringReduction (mathematics)MATLABcomputerVoltagecomputer.programming_language
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Spectral and temperature sensitivity of area de-coupled tandem modules

2015

- Area de-coupling is a recently suggested method for current- or voltage-matching two-terminal tandem modules. It has previously been shown that under standard conditions, area de-coupled modules have the same theoretical efficiency as four-terminal tandem cells for any combinations of band gaps. In this work, the spectral and temperature sensitivity of ideal area de-coupled modules is investigated by detailed balance modeling. Voltage-matched area de-coupled modules are found to be considerably less sensitive to changes in the spectrum than current-matched modules. Current-matched modules are, on the other hand, found to be less sensitive to changes in the temperature. Under normal condit…

Work (thermodynamics)Spectral sensitivityMaterials scienceNormal conditionsTandemBand gapbusiness.industryPhotovoltaic systemOptoelectronicsSensitivity (control systems)Photonicsbusiness
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