Substation Automation, Protection and Control Based on IEC 61850

Dear Colleagues,

Introduction of IEC 61850 standard, Substation Automation System (SAS) has significantly transformed the secondary systems architecture within substations. Given the number of topologies and communication protocols applicable to intelligent digital substations, they could be a good fit to replace copper wires in conjunction with the use of Non-Conventional Instrument Transformers (NCITs). This approach would enable operators to address challenges related to legacy protocols while carrying out smooth network operation and isolating a faulty incomer or feeder. SAS based on IEC 61850 will make it easier to perform fault diagnostics, achieve faster project completion and mitigate environmental problems associated with leaked oil or SF6 gas. However, IEC 61850 communication protocols are not without challenges specifically related to latencies, redundancies, end-to-end (ETE) delays, time synchronization, cyber threats and the application of appropriate topologies to the right network.

This Special Issue on SAS is well timed, as it will provide multiple benefits to substation operators for the accurate protection and reliable condition monitoring of secondary systems.

Dr. Shantanu Kumar
Guest Editor

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