SIPROTEC 4 7SA522 Distance Protection Relay for Transmission ...

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SIPROTEC 4 – 7SA522 Distance Protection Relay for Transmission Lines System SIPROTEC 4/SICAM SIPROTEC 4 as an integral part of SICAM energy automation system SIPROTEC 4 is tailor-made for use in the SIMATIC-based SICAM energy automation system. The SICAM family consists of the following components: − SICAM RTU, the modern telecontrol system with automation and programmable logic functions − SICAM SAS, the modern integration of switchgear automation and information technology − SICAM PCC, the information and communication technology on a PC basis Database SICAM WinCC DIGSI 4 SICAM plusTOOLS Bay control units SICAM/SIPROTEC 4 Software Data management Communication Various communication protocols SCADA CPU Central I/O Protection devices Data management and communication is one of the strong points of the SICAM and SIPROTEC 4 system. Powerful engineering tools (SICAM plus TOOLS based on STEP7 and SICAM Win CC) make working with SICAM convenient. The SIPROTEC 4 units are optimally matched for use in SICAM SAS and SICAM PCC. With SICAM and SIPROTEC 4 continuity exists at three central points: − Data management − Software architecture − Communication. Figure 10 SICAM/SIPROTEC 4 architecture IEC 60870-5-103/Profibus-FMS Rear of unit SIPROTEC 4 Front interface Service Bus Rear of unit SIPROTEC 4 Front interface Systems control Rear of unit SIPROTEC 4 Front interface Office Modem access All central system components (SICAM and SIPROTEC 4 CPUs, SICAM WinCC, SICAM plus TOOLS, bay controllers and protection equipment), as well as the DIGSI 4 operating program, are established on the same basis. The ability to link SICAM/SIPRO- TEC and other components of the substation control, protection and automation is assured via open interfaces, such as IEC 60870-5-103 or PROFIBUS. Service interface The service interface can be used asa2 nd operating interface. DIGSI 4 offers the additional possibility of accessing bay controllers via modem. Thus the full range of DIGSI 4 functionality is available at the office desk or when travelling (by laptop and modem). This permits rapid and extensive access for the service personnel. All settings and control commands are available and it is possible to read the operational and fault event logs, fault records as well as operational measured values. Figure 11 Systems control bus and service bus Star coupler All SIPROTEC units operate also with the proven star coupler. The star coupler is used for simple applications which also give the user an alternative method of retrieving information remotely. Service vehicle 8 Siemens SIP 4.2 · 08/99
SIPROTEC 4/SICAM system SICAM WinCC Operation and monitoring archive, configuration station Telecontrol interafce to system control centers (e.g. IEC 60870-5-101) Automation systems (e.g. SIMATIC) Time synchronisation DCF77, GPS DIGSI 4 SICAM SC IEC 60870-5-103 Profibus FMS IEC 60870-5-103 2) 2) 1) 2) 1) 2) 1) 6MD63 Protection Protection/control Control 7SJ61/62 7SJ61/62 6MD/7SJ63 6MB525 7SJ61/62 6MD63 7SJ63 1) Protection and control 2) Protection and control in seperate units. in one unit. 7SJ600 7SA511 7UT51 SD51 7SJ51 6MB525 Figure 12 SICAM SAS communication structure Figure 13 Communication via star coupler Siemens SIP 4.2 · 08/99 9
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