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This paper presents industry best practices to optimize lifecycle cost of electric transmission and distribution (T&D) assets whilst maintaining asset integrity, functionality and operability. This qualitative study encompasses high voltage plant and equipment in the electric power transmission and distribution sector, and focusses on asset strategy, equipment evaluation and specification. Asset...
This paper provides an overview and insight into the transformation of the West Africa Power Pool into a regional electricity market from a technical and socio-economic perspective. It summarizes efforts made to date, identifies and evaluates opportunities for improvement and proposes some considerations for future development. The balance of the paper presents key observations and issues affecting...
In recent years, wind energy has proven to be the most competitive and environmental friendliest renewable energy (RE) source for generating electricity. Wind farms are more likely to be located far from the load centres, and hence the generated power has to be transmitted over long distances. A high voltage direct current (HVDC) transmission system increases the transmission capacity, improves the...
Renewable energy generation technologies with its short lead times have become an attractive alternative to assist South Africa to solve its energy crisis and hence led to the Government calling upon Independent Power Producer to enter the market. Subsequently, the Integrated Resource Plan 2010 set a target of 17 800 MW (equivalent to 42%) of new electricity generation capacity in the country to be...
High Voltage Direct Current (HVDC) systems has been an alternative method of transmitting electric power from one location to another with some inherent advantages over AC transmission systems. The efficiency and rated power carrying capacity of direct current transmission lines highly depends on the converter used in transforming the current from one form to another (AC to DC and vice versa). A well-configured...
Power System stability is an essential study in the planning and operation of an efficient, economic, reliable and secure electric power system because it encompasses all the facet of power systems operations, from planning, to conceptual design stages of the project as well as during the systems operating life span. This paper presents different scenario of power system stability studies on a modified...
Wind energy is one of the most promising renewable energy sources for generating electricity due to its cost competitiveness when compared to the conventional energy sources (fossil fuels). Wind farms are usually located far from the loads for minimal disturbances and optimal power generation. High Voltage Direct Current (HVDC) transmission is the preferred bulk power transmission system over long...
The vibration level of an Optical Ground Wire (OPGW) with a Multi-Response Stockbridge Damper (MRSD) strung at the tension value of catenary 2100m, is analyzed by using laboratory test result in combination with the endurance limit approach. The effect of the damper counter weight orientation, MRSD with low-mass and bolted clamp were studied in refining the stress state of the OPGW. The result enables...
The power line network presents a readily available medium that can be utilized for the delivery of both low and high data rate communication services. This ready available infrastructure implies that the cost of network set up is very low compared to other technologies, like fiber optics. However, the power line channel is very noisy and presents a hostile environment for communication purposes....
Faulty insulator causes the change of voltage and electric current, which generates great damage in power grid. It is therefore important to monitor and inspect the insulator to assess damage that could be caused by aging or any accident on power line system. Computer vision has been identified and is being investigated as a tool to solve this problem more safely, accurately and speedily. Identifying...
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