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Distribution network performance improvement using load compensation
Published 2024“…Such loads include Adjustable speed drives (ASD), High voltage Direct current (HVDC) system, traction systems, electric arc furnace, flexible AC transmission systems (FACTS), heating, ventilation and Air conditioning (HVAC) and loads with switch-mode power supplies. These power electronics-based devices draw nonsinusoidal currents which increased the reactive power demand from the source and other effects such as current and voltage distortion, errors in metering and malfunctioning of protective equipment, increased heating in conductors and power transformers, poor voltage regulation due in the supply's distribution system due to resonance condition. …”
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Distribution network performance improvement using load compensation
Published 2024“…Such loads include Adjustable speed drives (ASD), High voltage Direct current (HVDC) system, traction systems, electric arc furnace, flexible AC transmission systems (FACTS), heating, ventilation and Air conditioning (HVAC) and loads with switch-mode power supplies. These power electronics-based devices draw nonsinusoidal currents which increased the reactive power demand from the source and other effects such as current and voltage distortion, errors in metering and malfunctioning of protective equipment, increased heating in conductors and power transformers, poor voltage regulation due in the supply's distribution system due to resonance condition. …”
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Distribution network performance improvement using load compensation
Published 2024“…Such loads include Adjustable speed drives (ASD), High voltage Direct current (HVDC) system, traction systems, electric arc furnace, flexible AC transmission systems (FACTS), heating, ventilation and Air conditioning (HVAC) and loads with switch-mode power supplies. These power electronics-based devices draw nonsinusoidal currents which increased the reactive power demand from the source and other effects such as current and voltage distortion, errors in metering and malfunctioning of protective equipment, increased heating in conductors and power transformers, poor voltage regulation due in the supply's distribution system due to resonance condition. …”
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Investigating phenotypic differences of Plasmodium falciparum parasites following exposure to classical antimalarial drugs
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Diode-end-pumped solid-state lasers
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Integrated network-based thermofluid model of a once-through boiler at full- and part-load
Published 2023“…The increased penetration of renewable energy sources in South Africa requires greater operational flexibility of existing coal-fired power plants (CFPPs). …”
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Characterisation of L-band differential low noise amplifiers
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High Speed flywheel and test rig design for rural energy storage
Published 2014“…There is considerable growth in the renewable energy sector to contribute to sustainable development, environmental conservation and most importantly to provide affordable energy to isolated rural communities of sub-Saharan Africa. Renewable energy sources such as solar and wind require energy storage since the source of energy is intermittent. …”
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Analysis of information literacy training at the National University of Lesotho
Published 2019“…NUL Subject Librarians take initiative to improvise information literacy content; they use lecture mode and library tours as their predominant mode of information literacy teaching and learning. …”
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ATOM : a distributed system for video retrieval via ATM networks
Published 2016“…A flow is a single media source which traverses resource modules between Server and Client. …”
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The applicability of implementing Enhanced Milieu Teaching (EMT) with young children with developmental disabilities who reside in the Western Cape and speak Afrikaans or IsiXhosa...
Published 2020“…The adaptome framework comprises four sources of adaptations, namely: service setting, mode of delivery, target audience and cultural adaptations. vi Results: The barriers and facilitators to implementing EMT, together with the areas for potential adaptation within a multilingual and/or multicultural context, were reported in this study. …”
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Investigating the feasibility and logistics of decentralized urine treatment for resource recovery
Published 2020“…This research aimed to evaluate a novel mode of resource recovery, through the assessment of a decentralized approach to urine treatment. …”
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Modeling and control of brushless doubly-fed bar cage induction machines
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The genesis of the blue amphibole asbestos of the Union of South Africa.
Published 2017“…Particular attention is paid to the mode of occurrence of fibrous riebeckite and it is suggested that the name "crocidolite" be reserved for the asbestiform riebeckite which occurs interbedded with banded ironstones. …”
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Challenges and Opportunities for Sustainable Urban Mobility (Non-Motorised Transport): A Case Study of Eveline Street in the Windhoek Municipality, Namibia
Published 2020“…NonMotorised Transport (NMT), as a mode of transport, is one of the most sustainable modes of transport, as it does not rely on fuel and, is one of the cleanest modes of transportation. …”
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Recycling ghosts : reimagining C. Louis Leipoldt's play "Die Laaste Aand" (1930)
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Interactive Expert System for Budgeting World Bank Consultancy Projects
Published 2021“…Upon establishing the regression by classification approach by using the ensemble method, the final vote is computed using "mode" operation, to select the most common output class among all models, resulting with a 40.62% success rate and 72.41% acceptance rate respectively. …”
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