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The new Substation Automation System (SAS) GSC1000 has been introduced to Toshiba Protection & Control System products line up. It is especially characterized by IEC61850 standard compliant from application point of view point. The well known substation network protocol IEC61850 for utility systems is getting accepted and adopted gradually amongst many utilities in the world. The new system has been certificated by KEMA regarding IEC61850 standard in 2007.
Further environment surrounding computerized system and its rapid changes and advancement make innovation of products performance possible as well as productive efficiency. Adaptation to this innovating technology is investigated and improvements are accomplished in the new design too.
The overall system configuration of the GSC1000 is shown below.
The Substation Computer (SC) is the server of the GSC1000 and the core of the system on which the main programs of the system run. The Gateway (GW) is integrated in the SC rack, in order to secure the future supply of the spares appropriate for utility equipment lifetime by employing the similar hardware architecture design with SC.
The Operator workstation (OWS) is a human machine interface (HMI) of the SAS for the operator to control and monitor the substation. Industrial PC with Windows-XP that is deemed widely accustomed to many end-users is employed for providing easier and familiar operability for the operator.
In order to realize bay oriented distributed system architecture of the SAS, the multi-functional Bay Control Units (BCU) Type GBU100 are allocated in the individual local control panel of the switchgears. The new GBU100 is IEC61850 compliant and communicates with SC and other IEDs on station ring topology LAN through dedicated Ethernet switch.
A condition encompassing IEC61850 standard is still transitional. Many IEDs are under progress to implement communication hardware and software to support the standard at present. To cope with those circumstances, the dedicated Interface Unit (IFU) is provided so that the new substation automation system is able to communicate with the IEDs supporting IEC60870-5-103 that is widely available in the market. The Interface Unit Type G1IF4 has a communication port for IEC60870-5-103 protocol and a IEC61850's for intermediating IEC60870-5-103 equipment to IEC61850 station system bus. Up to ten of IEC60870-5-103 IEDs are connected to IFU by daisy chain topology.
