Thesis (MScEng)--University of Stellenbosch, 2003. / ENGLISH ABSTRACT: The bandwidth of standard HV measurement devices such as capacitive voltage
transformers is too limited in order to measure wideband phenomena. This thesis is
concerned with the investigation into a non- intrusive HV transient voltage
measurement facility using standard substation HV current transformers (CI's)
configured in a transconductance topology. The sensing, summation and integration
of the CT capacitive earth currents are investigated. This thesis also reports on the
development of a optically isolated link using optical fibre for signal transfer and a
computer based data acquisition system. / AFRIKAANSE OPSOMMING: Standaard hoogspannings (HS) meettoerusting soos kapasitiewe spannmgs
transformators het beperkte bandwydte vir die meet van wyeband verskynsels.
Hierdie tesis handel oor die implementering van 'n HS meetstelsel wat op meinbrekende
wyse oorgangsverskynsels meet deur middel van HS
stroomtransformators wat in 'n transkonduktansie topologie gekonfigureer is. Die
meet, sommasie en integrasie van kapasitoewe grondstrome word ondersoek. Hierdie
tesis doen ook verslag aangaande die ontwikkeling van 'n optiese geisoleerde
koppelvlak wat gebruik word vir seinoordrag en 'n rekenaar gebasseerde data
versamelaar. / pdv201406
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/53426 |
| Date | 12 1900 |
| Creators | Siebrits, F. B.(Francois Bart) |
| Contributors | Vermeulen, H. J., Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : Stellenbosch University |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | English |
| Type | Thesis |
| Format | 160 leaves : ill. |
| Rights | Stellenbosch University |
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