Theses and Dissertations (Power Engineering)

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Partial discharge evaluation of a high voltage transformer

Kyere, Isaac Kwabena (2015-02)

This dissertation is devoted to the study of partial discharge evaluation of a high voltage transformer. The 400 V/300 000 V (300 kV) high voltage transformer in the high voltage laboratory was manufactured in 1967. Given ...
Design and development of a high efficiency modulated Class E amplifier

Crafford, Crafford, Hendrik Lambert Helberg Hendrik Lambert Helberg (2006-01)

Amplitude modulation is not commonly associated with effective amplifying. This work focuses on implementing amplitude modulation into a high efficiency Class E amplifier. Different types of amplifiers are compared with ...
Incandescent light power efficiency: an impact study on the power consumption of the Vaal University of Technology's light sources

Adeniyi, A. O. (2013-12)

In view of the energy consumption problems, an impact study, extensive laboratory tests and an investigation towards comparable energy saving light sources was carried out on the light sources identified in the survey ...