Station Control - Substation Automation System (SAS)
As a station control system, SPRECON-E is applied to switchgear units and substations of all types and voltage levels. The flexible system concept and the wide-ranging scalability of the components allow practice-oriented, reliable and costeffective configurations. As a result, adaptions to specific requirements can be easily accomplished.
Beside implementation into new plants, SPRECON-E is also perfectly qualified for plant retrofit due to its flexibility and robustness.
- Highest modularity and functional range
- Highest electromagnetic compatibility (EMC)
- Direct process interfacing (no extra relays required)
- Easily adaptable to specific requirements
- Station LAN with IEC 61850 and/or IEC 60870-5-104 or serial connection via IEC 60870-5-101/-103
- Ring topology with integrated optical switch or traditional star topology (option)
- Connection of external devices such as protection devices, regulators or power quality
- Bay operation via detachable control panel (SPRECON-E-CP) with full-graphical and configurable colour display
- Configurable automatic functions (function block diagram according to IEC 61131-3 or sequence processing with boolean operations)
- Software modules for certain functionalities such as protection, earth fault detection and localisation, voltage regulator or synchro-check
- Central station operation via a SPRECON-V460 HMI workstation
- Communication with superior control level via IEC 60870-5-101, IEC 60870-5-104 or proprietary protocols
- Devices for all voltage levels and tasks (protection, bay computer, station computer, local I/Os, gateways, etc.)
Highest scalability
Due to their high scalability, SPRECON-E devices can be applied for various automation tasks in all types of plants and utilities. The modular design allows easy adaption to customer-specific requirements.
The modular principle therefore facilitates configuration of various functionalities as well as integration of various functionalities into one device.
Secure communication is achieved by applying standard protocols such as IEC 61850, IEC 60870-5-101, -103 and -104. Furthermore, SPRECON-E also supports diverse proprietary protocols.
- Station or master computer for substations and power plants (redundant design on request). Central unit for connection of distributed bay computers or protection devices, global automation functions, bus voltage replication, interface to superior SCADA
- Bay computer or bay control unit (BCU) for substations and power plants of all voltage levels and types. Switchgear control, capturing of measured and metered values, interlocking, logical functions for switching sequences etc.
- Protection device for electric supply systems. Overcurrent protection, distance protection, transformator differential protection, motor protection.
- One-box for combined protection and control of electric supply systems. Separated data models, separated control and protection firmware, separated control and protection configuration, separated passwords.
- Switchgear interlock unit for high and medium voltage switchgear units. Solution for complex switchgear interlocking (bay and station interlocking), parameterisation via PLC or boolean algebra.
- Automatic voltage regulator for power transformers with motor-driven tap changers. Automatic parallel run of several units (master/follower principle), monitoring of circulating reactive current, up to five different set-point values.
- Synchro-check unit for high and medium voltage switchgear units. Measurement of two voltages with regard to phase, frequency and voltage difference for interconnection of supplied grids.
- Automatic switching unit for electric grids of all voltage levels. Automatic busbar switching, automatic earthing, automatic switching of incoming feeders, automatic connection/disconnection of bays, testing routines.
- Indication and recording unit for event, fault and alarm indication (1 ms resolution) with LED or display panel. Contact debouncing, chatter blocking, signal filtering, signal delay, signal summation, signal grouping, logic operations.
- Frequency-based load shedding unit for automatic disconnection of consumers due to frequency reduction in the distribution network. Frequency calculation by configurable algorithms, command output with multi-stage monitoring or distribution via GOOSE, fault and alarm signal acquisition with signal pre-processing.
- Protection data concentration unit for combination of protection devices of different manufacturers. Three models: communication computer, communication computer with protection data mass storage and archiving, communication computer with protection data mass storage, archiving and local HMI.
- Communication device (Gateway) for conversion of various communication protocols. Conversion of proprietary communication protocols into the IEC 60870-5-101/104 and DNP V3.00 standards.
