In March this year, work began on a R57 million project, for the manufacture, supply, delivery, installation, testing and commissioning of the electrical protection and data communication network for the satellite substations at the City of Tshwane Metropolitan Municipality (CTMM).
ABB (a leading power and automation technology group) will provide a data communication network that has the ability to remotely monitor, control and supervise the various components and systems in the electricity distribution network located throughout the Tshwane municipal area. This R57 million order will consist of a data communication system that will service the 132 kV networks as well as the main 33 kV and 11 kV satellite substations, which cover the areas of Pretoria, Centurion, Mamelodi, Atteridgeville, Soshanguve and Acacia. The contract will be managed by DelportDuPreez Consulting Engineers on behalf of the CTMM.
Some of the devices that the data network will communicate between are; control centres, quality of supply recorders, the supervisory control and data acquisition (scada) system, remote energy metering and TCP/IP communication over the extended wide area network (WAN) of the Electricity Department.
"One of the great strengths of the ABB proposal was the ability to offer an economical teleprotection solution in the form of the TEBIT card (teleprotection and binary unit)," says Ndivho Lukhwareni, strategic executive officer of the Electricity Department of the CTMM. The project is scheduled for completion in June 2006.
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