Title :
Eskom experience with on-site field tests of a capacitive coupled substation
Author :
Schilder, M. ; Britten, A.C. ; Mathebula, M.E. ; Singh, A.
Author_Institution :
Eskom Resources & Strategy, Johannesburg
Abstract :
A 275/22 kV capacitive coupled substation (CCS) that is based on the principles of a capacitive voltage transformer (CVT) was built in the Kwa-Zulu Natal province of South Africa to supply a pumping load of 1.5 MW. During commissioning of the CCS, it was found that interaction between an induction motor and the CCS resulted in a severe voltage instability or sub-synchronous resonance (SSR). The results of various field tests done to quantify and analyse this SSR are described in this paper
Keywords :
induction motors; potential transformers; substations; subsynchronous resonance; 1.5 MW; 22 kV; 275 kV; Eskom experience; Kwa-Zulu Natal province; capacitive coupled substation; capacitive voltage transformer; induction motor; onsite field tests; subsynchronous resonance; voltage instability; Africa; Carbon capture and storage; Couplings; Filters; Inductors; Reactive power; Shunt (electrical); Substations; Testing; Voltage;
Conference_Titel :
Power Engineering Society Inaugural Conference and Exposition in Africa, 2005 IEEE
Conference_Location :
Durban
Print_ISBN :
0-7803-9326-0
DOI :
10.1109/PESAFR.2005.1611795
