www.sprecher-automation.com • Integration into a real 300 kV substation • 300 kV distance protection with process bus • Independent switchgear control unit (SCU) • Mixed configuration with protection devices from Siemens and ABB on a process bus • Standard-based time synchronisation with PTP • Network redundancy via parallel redundancy protocol (PRP) • Comprehensive security concept for fully digitised stations AT A GLANCE Schematic diagram: conventional wiring Digital substation with process bus DIGITAL EXTRA HIGH VOLTAGE SUBSTATION WITH PROCESS BUS STATNETT SF The digitisation of the process level or the implementation of process bus technology for so-called “digital substations” represents one of the most challenging paradigm shifts in both protection technology and substation automation. The transformation from hard-wired signals to the net- work-based communication of measured values promises many advantages, but also poses significant technological hurdles that must be overcome. Together with the Norwegian transport network operator Statnett SF, Sprecher Automation GmbH has taken up this challenge within the framework of a pilot project. PROCESS BUS The essentials of the conventional system are the necessa- ry copper cables that must be routed between the switch- board, outdoor cabinet and the primary components in order to transmit the analogue signals and control commands. In contrast, the station digitised by means of a process bus is a simplified solution. Here, the stated components are not connected by dedicated copper lines, but instead by a com- mon network. This comparison reveals the potential benefits that were explored in detail in the pilot project.
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DIGITAL EXTRA HIGH VOLTAGE SUBSTATION WITH PROCESS BUS
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www.sprecher-automation.com
• Integration into a real 300 kV substation
• 300 kV distance protection with process bus
• Independent switchgear control unit (SCU)
• Mixed configuration with protection devices from Siemens and ABB on a process bus
• Standard-based time synchronisation with PTP
• Network redundancy via parallel redundancy protocol (PRP)
• Comprehensive security concept for fully digitised stations
AT A GLANCE
Schematic diagram: conventional wiring
Digital substation with process bus
DIGITAL EXTRA HIGH VOLTAGE SUBSTATION WITH PROCESS BUSSTATNETT SF
The digitisation of the process level or the implementation
of process bus technology for so-called “digital substations”
represents one of the most challenging paradigm shifts in
both protection technology and substation automation.
The transformation from hard-wired signals to the net-
work-based communication of measured values promises
many advantages, but also poses significant technological
hurdles that must be overcome. Together with the
Norwegian transport network operator Statnett SF, Sprecher
Automation GmbH has taken up this challenge within the
framework of a pilot project.
PROCESS BUS
The essentials of the conventional system are the necessa-
ry copper cables that must be routed between the switch-
board, outdoor cabinet and the primary components in order
to transmit the analogue signals and control commands. In
contrast, the station digitised by means of a process bus is
a simplified solution. Here, the stated components are not
connected by dedicated copper lines, but instead by a com-
mon network. This comparison reveals the potential benefits
that were explored in detail in the pilot project.
EXPENSESLess cooper cabling
Less space required for secondary systems
TIMEShorter downtime
Shorter commissioning & inspections
SAFETYNo process voltage in control center (FOC)
No risk of open current transducer circuits (NCIT)
Sprecher Automation, the Sprecher Automation logo and any alternative version thereof are trademarks and service marks of Sprecher Automation. Other names mentioned, either registered or not, are the property of their respective companies.
Any liability regarding the correctness and completeness of information and/or specifications in the brochure is excluded.
All rights are reserved to alter specifications, make modifications, or terminate models without prior notice. The specifications of a model may vary from country to country.
August 2016 August 2017 September 2017December 2016
Sprecher Automation, the Sprecher Automation logo and any alternative version thereof are trademarks and service marks of Sprecher Automation. Other names mentioned, either registered or not, are the property of their respective companies.
Any liability regarding the correctness and completeness of information and/or specifications in the brochure is excluded.
All rights are reserved to alter specifications, make modifications, or terminate models without prior notice. The specifications of a model may vary from country to country.
Sprecher Automation, the Sprecher Automation logo and any alternative version thereof are trademarks and service marks of Sprecher Automation. Other names mentioned, either registered or not, are the property of their respective companies.
Any liability regarding the correctness and completeness of information and/or specifications in the brochure is excluded.
All rights are reserved to alter specifications, make modifications, or terminate models without prior notice. The specifications of a model may vary from country to country.