A dissertation submitted to the Faculty of Engineering, University of the
Witwatersrand, Johannesburg, in fulfillment of the requirements for the degree of
Master of Science in Engineering.
Johannesburg, 1997. / Results are reported on an initial investigation into corona power loss and its relationship
to corona initiated audible noise. The work has the goal of being able to accurately
predict the corona power loss, from a transmission line, from knowledge of the audible
noise on the line. Corona power loss and its relationship to corona current, applied
voltage and electric field is also exarr-ined.
Experiments were performed using two single phase, different diameter, corona cages.
Although the corona cage test results showed no correlation between corona initiated
broad band audible noise and corona power loss, a linear empirical relationship, with
excellent correlation, was found to exist between corona power loss and 100Hz Hum
(dBA above 20jlPa).
Results showed that, at the same magnitude of electric field, within the l h o different
diameter corona cages, the corona current is the same magnitude and the corona power
loss is proportional to the applied voltage. / MT2017
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:wits/oai:wiredspace.wits.ac.za:10539/22721 |
| Date | January 1997 |
| Creators | Engelbrecht, Michael Sean |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | Online resource (55 leaves), application/pdf |
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