Project Reference Powergrid owns India‘s first IEC 61850 substation automation system Substation Automation Systems through field-proven IEDs and a redundancy concept for local operation as well as remote control and supervision from the Remote Control Centre (RCC) and Regional System Coordina- tion Centre (RSCC) via IEC 101 protocol. Using components with verified IEC 61850 implementation as well as SCL-based tools, the vendor shall ensure a fully integrated and interope- rable system that is easy to expand in the future. ABB Solution The solution chosen is based on ABB’s state-of-the-art IED 670 for protection and control of each bay and dual station HMIs in a hot-standby configuration. It also features redun- dant COM 581 communication gateways for telecontrol from the RCC at B

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