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Now showing items 31-40 of 72
Design and implementation of a thyristor controlled series capacitor for research laboratory application.
(2003)
The power transfer capability of a transmission line is determined by the magnitude of the voltage at each end of the line, angle difference of these voltages and the impedance of the line. This impedance is mainly inductive. ...
Safety of low voltage switchgear assemblies in South Africa – Part 1.
(EE Publishers., 2005)
A technical analysis was undertaken to investigate the safety implications of the introduction of the category Specially Tested Assembly (STA) into the South African standard SANS 1473-1:2003. The testing requirements ...
Eskom’s proposed strategic research into HVDC transmission.
(EE Publishers., 2005-07)
Eskom has recently started a large research and development programme for the study of long-distance HVDC transmission in Sub-Saharan African conditions. This paper explains why the research is being done, what its strategic ...
Implementation of an application specific low bit rate video compression scheme.
(2001)
The trend towards digital video has created huge demands all the link bandwidth required to carry the
digital stream, giving rise to the growing research into video compression schemes. General video
compression standards, ...
Performance of all dielectric self-supporting fibre optic cable in high voltage environments.
(2003)
Power utilities around the world are now in the practice of installing fiber optic
cables on their high voltage transmission networks. These high-speed
communication channels can, not only transmit data needed for utility ...
A study of high voltage direct current conductor corona in a purpose built corona cage.
(2003)
The main aim of this study was concerned with the design and commissioning of a
corona cage, which could be used under Direct Current (DC) conditions. The cage
was designed based on empirical formulas and equations as ...
Performance analysis of cellular networks.
(2000)
Performance analysis in cellular networks is the determination of customer orientated grade-of-service parameters, such as call blocking and dropping probabilities, using the methods of stochastic theory. This stochastic ...
Rain attenuation effects in considering the feasibility of stratospheric communication platforms for rural areas of South Africa.
(2006)
Also known as High Altitude Platform Stations (HAPS), these systems employ unmanned or
manned, solar or fuel energy airships or aircraft carrying payloads with transponders and antennas.
These remote airships ...
A network based prototyping system for applications in research and engineering education.
(2001)
Engineering educators the world over are being faced with the dilemma of combining traditional
mathematically intensive courses, like Control Systems and Robotics with advances in computational
hardware and software. ...
The design of an HF band direct sequence point-to-point link for rural telecommunications.
(2000)
The following work documents the design of an HF band direct sequence point-to-point
link as used in a rural environment. The dissertation begins with a description of
the overall document layout. An introduction into ...