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Through implementation of the SPRECON-E control systems the 110 kV and the 20 kV switchgears can be now controlled centrally at a higher safety and availability level. This resulted in an significant advantage for the plant operator: facilitation of maintenance and trouble-shooting. Symboler och funktioner för att rita kretsscheman, huvudkretsscheman, yttre anslutningsscheman, montageritningar, plc och enlinjescheman. In the course of the implementation, all circuit diagrams were designed in accordance with the new EVN standard ELCAD 7.1.2 for the first time. moms) Komplett CAD-lösning för elritningar för enklare produktioner. Operation-affecting down times could be consequently anticipated. Therefore enough space was provided for the new control systems and the protection cabinets.įurthermore, the retrofit time for the bays could be minimised (one week per bay). Concerning the shortness of the retrofit time, the team could benefit from these arrangements at the highest possible level. Several arrangements had already been accomplished in the station building before the actual renewal works started at the outdoor bays. In order to sustain functioning of outgoing feeders that were directly affected, Sprecher Automation arranged some temporary installations for the bay-wise retrofit.

Maintainance of plant operation during the retrofit was a particular challenge.

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Professional Retrofit - avoiding down times

Integration of metering including PQMS (Power Quality Management System).

The symbol-based circuit diagram design is created in ELCAD in an editing view which according to many ELCAD users is globally unrivalled in terms of efficiency.

Partial renewal of the station auxiliaries designed the handling of ELCAD so that the optimal combination of information presentation, fast data manipulation and intelligent support is provided for each work stage.

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Serial connection to the existing remote terminal unit of the 20 kV medium voltage switchgear via ABB P214 protocol.Integration of protection systems (serial und parallel).Station control systems and VDU-based workstations.