Remote Maintenance Testing

Remote Maintenance Testing in Digital Substations

by Alexander Apostolov, USA

The transition of the electric power industry towards a smarter grid is characterized with significant efforts to improve the efficiency in performing all tasks and reducing the duration of outages in case of events related to the operation of multifunctional protection IEDs. The wide spread implementation of IEC 61850 based substation protection and the increased interest in digital substations based on the sampled values interface with the substation process is providing an opportunity to develop and implement protection, automation and control systems that can be maintained and tested remotely. The testing of hardwired protection and control systems requires a crew to drive to (in many cases) a remote location to perform maintenance testing. More

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