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SCADA System for Regional Power Supply and Power Transport to Italy
Rätia Energie (RE) is one of Switzerland’s biggest energy companies with headquarters in Poschiavo/Graubünden canton.
Apart from the operation and monitoring of installations in the regional supply areas, the IDS SCADA system also controls the new, transnational extra-high voltage line for the power transport between Switzerland and Italy. Therefore, the system is internationally connected and is able to exchange data with SCADA systems at home and abroad via TASE.2 interface.
The central IDS HIGH-LEIT SCADA system started operation in April 2006 and was installed to replace three regional control systems, the objective being the reduction of costs for system maintenance and support as well as the termination of shift operation in the Prättigau plant. Today, the transport and distribution networks are monitored and controlled around the clock from the new network control centre at Robbia (Poschiavo).
System Configuration
From more than 35 substations and switching substations, data from 11 voltage levels (up to 499 kV) are collected and transmitted to the SCADA system via the SDH network. The world map function enables topological colouring and georeferential visualisation of the complete network. Communication between the existing telecontrol equipment and the SCADA system takes place by means of IDS 850 front-end computer via IEC 60870-5-101 and TG 809 protocols, as well as SINAUT 8FW DPDM.
For comfortable and user-friendly operation of the redundant SCADA system, two control room workplaces with multi-screen technology are installed, each featuring three monitors and one emergency terminal. They are supported by large-screen projectors with 2 x 3 modules. Two remote workstations in Prättigau and Engadin are connected via the SDH network. For on-call duty, 10 mobile work terminals are available. Relevant data are provided to the office via web server. Furthermore, an application server is available for off-line generation, training and instruction purposes.