Development of a programmable protection relay test system by Dann, L. R.

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Photovoltaic based distributed generation power system protection

Subjects: “…Protective relaying system…”
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Implementation of wide area protection system (WAPS) for electrical power system smart transmission grids by Tetteh, Bright

“…Transitioning to a smart grid influences the protection schemes of the power system, as the smart grid is to leverage distributed energy resources (DERs) using distributed generation (DG) units and allow for bi-directional flow of power and information. …”
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An investigation into the importance of considering protection performance during power system out-of-step conditions by Van Eyssen, Juanita

“…The performance of power system protection is affected by out-of-step conditions in that system. …”
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Protection-based Distributed Generation Penetration Limits on MV feeders - Using Machine Learning by Nxumalo, Emmanuel

“…Grid integration of DGs brings about protection issues. Current protection systems were not designed for bi-directional power flow, thus the protective devices in the network lose their ability to perform their main functions. …”
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The protection of high-voltage shunt capacitor banks by Van der Toorn, Sean

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Metering and adaptive protection for a microgrid with distributed generation by Buque, Claudio

“…The main objective of this project is to develop an adaptive relaying system that will protect the microgrid both in connected and isolated modes. …”
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Application of evolutionary algorithms for optimal directional overcurrent relay coordination by Stenane, Ndabeni Moses

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A new method of utilising stability study results in applying out-of-step protection to allow observability of rotor angle unstable conditions by Van Eyssen, Juanita

“…Power system rotor-angle unstable conditions may cause undesired operation of distance relays, resulting in the unnecessary switching of lines. …”
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Application of IEC61850 protocol to implement peer-to-peer communication on General Electric (GE) relays : evaluation of IEC61850 performance by Moerane, Christina Matankiso

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Current transformers transient response modelling using electromagnetic transient program (EMTP) by Chuthi, Noel Nelson Stima

“…Current transformers are considered eyes for power system protection. Behaviours of protection systems depend largely on information fed to them by instrument transformers. …”
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Subsynchronous resonance in series compensated networks with high penetration of renewable energy sources by Chikohora, Tinashe Edward

“…The future work involves analysis of SSR in other RES and how SSR protection can be incorporated in protection relays using a filtering method based on the prony analysis.…”
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Duality derived topological model of single phase four limb transformers for GIC and DC bias studies by Borrill, Leslie David

“…Saturated transformers pose problems for power system operators since they can cause harmonics, transformer heating, mal-operation of protection relays, generator heating and vibration, and consume a large reactive power that can cause voltage collapse. …”
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Improving Buffalo City's sub-transmission reliability by Bentil, Joseph Kingsley Attom

“…The results in this research work had to discover the most appropriate resolutions to aging equipment, reactive maintenance and protection systems. The DIgSILENT Power Factory simulates and quantifies the results of the problems that could occur in the sub-transmission network in the immediate future. …”
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The interaction of acidification and warming on the South African abalone, Haliotis midae, and the potential for mitigation in aquaculture by Lester, Nina Catherine

“…Ambient seawater retained natural pH and temperature variability and acidified seawater was offset to natural pH variability using CO2/O2 diffusion and a data-logger-relay system to incorporate local-scale variability of seawater in the abalone farm, where this experiment was based. …”
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Joernalistieke privilegie: ‘n Kritiese analise van ‘n joernalis se regsplig om vertroulike bronne van bekend te maak met besondere verwysing na die reg op vryheid van uitdrukking (...

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The Saccharomyces cerevisiae chitinase, encoded by the CTS1-2 gene, as an antifungal and biocontrol agent by Carstens, Maryke,1976-

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