A comprehensive approach towards implementing the process bus based substation automation system in substations and its benefits

Grid operators, including Transmission System Operators (TSOs) and Distribution System Operators (DSOs), have implemented Substation Automation in various substations during the last few decades. However, due to the continued advancement of technology, the extent of digitalization in substations has become more intense. This is to address the challenges of complex grid operation, resource optimization, and the need for advanced diagnostics and extensive automation.

The implementation of IEC 61850-8-1 created a new paradigm of digitalization in the substations [1]. With further development of technology, more advanced digital technologies such as Process Bus are being implemented in the substations.

This paper discusses the overall potential impact of implementing Process Bus based Substation Automation System and showcases the overall benefits and value proposition offered to the Grid operators in implementing this technology. The paper discusses various key aspects, which are briefly summarized below:

• Overall Benefits and Value Proposition offered by this technology.

• Case Study on Capital Expenditure (CAPEX) Cost Comparison between Conventional and Process Bus based solutions in greenfield substations.

• Operational Cost Savings by using this technology.

• Maintenance and Testing Approach and Remote Testing of Intelligent Electronic Devices (IEDs) using this technology.

• Case Study on Sustainability Benefits for a greenfield substation.

In summary, this paper has a high potential impact as readers will gain valuable insights into various aspects of Process Bus technology. These aspects include technology, industry best practices, maintenance and testing approaches, cost comparison studies, operational expenditure savings, and the benefits of reducing carbon footprints.