A Utility’s Experience in the Implementation of Substation Automation Projects
نویسنده
چکیده
All signals were transmitted between the primary plant and the protection and control system by means of hard-wired secondary cabling. Protection and control panels located in control rooms were equipped with protection relays, panel mimics and control switches. The primary plant and protection and control panels were hard-wired to a supervisory remote terminal unit (RTU) via a supervisory junction board. The RTU was networked to eThekwini Electricity’s supervisory control and data acquisition (SCADA) system. After the introduction of microprocessor based protection relays with communications facilities, simple multidrop networks were included to permit remote protection setting and engineering.
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