Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"Power cables"”.
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Partial discharge denoising for power cables
… for the monitoring of insulating conditions of power cables. As such, a large amount of off-line or online PD measurements have been deployed in power cables during the past decades. However, challenges still exist in PD diagnostics for power cables. Noise is one of the challenges involved in PD …
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Non-contact voltage monitoring of three-phase power cables
… coupling to monitor AC voltages in three-phase power cables. Using an existing sensor architecture, three-phase line voltages are accurately reconstructed through intrusive calibration techniques. Experimental results are presented for measuring 60 Hz line voltages using high-frequency …
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Electrical Insulation for High Temperature Superconducting Power Cables for Electric Transport Systems
The electrical power industry faces a never-ending and increasing demand for innovative designs and ideas to provide electrical power with reduced size, a clean environment, and resiliency. Electric transport systems are some of the latest innovative techniques being researched and developed. The …
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Technical consideration and impact of converting overhead power lines to underground power cables
… in the development of new cities as underground cables become mandatory. Nonetheless, it is crucial to understand overhead line technology in order to model the next generation of power networks, as most of the power networks still comprise overhead lines. This field of study was exposed to …
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Dielectrometry measurements of moisture diffusion and temperature dynamics in oil impregnated paper insulated electric power cables
Paper insulated lead covered (PILC) cables have played an important role in underground power distribution for a hundred years. Replacing aged PILC before failure is critical to managing power distribution. Three prominent failure mechanisms accelerate cable aging: temperature stresses, moisture …
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Utilising novel methods to determine potential interactions between subsea power cables and benthic reef forming species <i>limaria hians</i> and m<i>odiolus modiolus</i>
… communities and infrastructure such as subsea power cables.<br/>Developers are now required to have a net biodiversity gain on the environment and as such,<br/>require a better understanding of how infrastructure impacts habitats and species conservation<br/>interests. Two such species are the …
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Space charge determination in HVDC power cable and its influence on electric field
… distribution of electricity is carried out by power cable. At present, most high voltage direct current (HVDC) installation uses traditional (oil-impregnated paper insulation and oil-filled-types) cables which pose a risk of environmental pollution in case of an accident. <br/><br/>Thus, …
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Solving Time-Alignment Challenges in Shipboard Non-Intrusive Load Monitoring
… is the practice of using sensors placed on power cables to monitor downstream loads. A few sensors can provide monitoring of many different loads,making it very cost-effective. Ship requirements for redundancy require multiple generators,and some go beyond a typical radial distribution …
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Proximity Coupled Non-Intrusive Wireless Sensors For Monitoring and Diagnostics
… sensors to monitor infrastructure, such as power systems have drawn a great deal of attention in the research community recently. To ensure reliable and uninterrupted power supply, sensors can be developed which will probe the power cables non-intrusively, transmit the fault information …
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A fibre optic system for distributed temperature sensing based on raman scattering.
… to monitor the temperature profile along a power cable using the fibre optic Distributed Temperature Sensing (DTS) technology. Based on the temperature measured by a DTS system, real time condition monitoring of power cables can be achieved. In this thesis, there are three main research …
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Advances in materials strategies, circuit designs, and informatics for wearable, flexible and stretchable electronics with medical and robotic applications
… sensing precision, reliable wireless powering, and materials strategy for skin-integration. Here, I present a series of systematic studies from materials strategies, circuit design to signal processing on skin-mounted electronic wearable devices. Several types of Epidermal Electronic …
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Demand forecasting using Monte Carlo Multi-Attribute Utility Theory
… distribution and overhead distribution power cables are explored in order to illustrate how the Monte Carlo MAUT methodology can be successfully applied in cases where there are diverse product types, limited numbers of decisions makers and historical market share data is sparse. Each …
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Conductivity Modulation of Magnetosphere-Ionosphere Coupling
… into human infrastructure like pipelines and power cables. Activity in the ionosphere is tightly coupled to the near-Earth space plasma region called the magnetosphere. This region is formed by interactions between the energetic particle outflow from the sun called the Solar Wind and Earth's …
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The effects of crosslinking byproducts on the electrical properties of low density polyethylene
… is widely used for high voltage insulation in power transmission systems. However, it has been found that, after crosslinking with Dicumyl Peroxide (DCP), the crosslinking byproducts such as acetophenone, ?-methylstyrene and cumyl alcohol have a significant influence on electrical properties of …
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Circuit rating methods for high temperature cables
For the safe and efficient operation of power transmission systems, each system component must have an accurate current rating. Since the advent of formal power networks a wide variety of methods have been employed to calculate the current carrying capacity of power cables, ranging from simple …
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Study of high temperature superconducting tapes for applications in high-field magnets and power systems
… conductors, the CORC® cable is designed as a powerful superconducting cable wound with REBCO coated conductor tapes in multiple layers which can meet these challenging requirements. The Conductor on Round Core (CORC) cable is one important type of superconducting cabling concept which is …
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Multi-defect localization and evaluation techniques for distribution cables based on time-domain reflectometry
Power distribution cables are essential components of power distribution systems, responsible for delivering electric energy to support social production and daily life, and playing a foundational role in economic development and societal operation. However, during manufacturing, installation, and …