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Utilities are working to manage distributed energy resources (DER), increase grid-connected power and face growing pressures to reduce costs and optimize assets while improving and maintaining power quality and service continuity. Intelligent technologies are being used to address these challenges to MV / LV substations. The substation is the first choice for innovative intelligence and becomes a key element of the smart grid because the substation plays a central role in the distribution system.

Utilities are pressed to reduce their capital and operational expenditures. This means they must optimize assets, more efficiently manage them, extend their life spans and reduce operation and management costs.

Utilities can see greater returns by leveraging smart meter data to optimize their distribution networks with smart meters that communicate through power line carrier (PLC) technology, which allows utilities to add value to the assets currently in place.  All connected smart meters communicate through the substation they are attached to, making MV/LV substations a critical point of a PLC-based smart meter measurement aggregation.

Utilities are being tasked with improving their quality of service. One of the most critical elements of quality of service is minimizing customers’ interruption time. Even short interruptions are inconvenient, disruptive, costly, and potentially damaging and dangerous.

The location of the distribution grid is a primary factor in quality of service because underground distribution grids typically have fewer interruptions and better performance than overhead grids, which are vulnerable to vegetation and storms. Because it is not always technically or economically feasible to move overhead lines underground, utilities can focus on smart technologies that can reduce the difference in performance between overhead and underground grids. For example, adding smart reclosers in distribution network feeders where transient self-clearing faults frequently occur can reduce outages, allow for rapid recovery, decrease the number of end users affected by an outage, and reduce the amount of non-produced energy and non-distributed energy.

The Intelligent Fault Channel Indicator (FPI) allows the operator to remotely check the status of each FPI to use real-time, accurate information related to failures occurring on the MV grid. It provides the most limited way for utility users to improve the quality of service, especially when the switch can be remotely controlled. If the site staff must be repaired at the site, the grid operator can also optimize the maintenance activities. FPI also allows faster access to diagnostic problems and is able to warn the connected feeder source status to avoid grid isolation.

Article from:

      https://blog.schneider-electric.com/