UdZ 01.21

UdZ 2-2021 / 61 information logistics concept and validated in further workshops with the distribution grid operators. The resulting information logistics concept is the starting point for the design of relevant developments for the realization of the continuous function monitoring. Switchgear Management in Distribution Grids by Grid Operators Grid operators take different approaches to grid and equipment maintenance, depending on factors such as the region or size of the grid and the placement of the equipment. Most operators rely on the preventive maintenance strategy and perform maintenance work according to a set schedule. High expenses due to the physical deployment of personnel at the plant locations are the result here. In addition, operators send their staff to inspect the equipment on a fixed route to perform a manual assessment of the condition of all the equipment using infrared cameras. For regular maintenance, the technicians travel along a fixed route. They then have infrared measuring devices with them for the inspection. This route planning means that the technicians only have standard equipment and a small number of spare parts in their vehicles. As a result, it is possible that not all the parts needed to perform the maintenance are available. Environmental factors also contribute to unexpected equipment failures. Plants near canola fields, for example, tend to fail more frequently and more quickly than others, making them more maintenance-intensive and costly. To address such issues, some operators are already moving to use a variety of maintenance strategies. For example, they have accumulated enough knowledge within the organization about the robustness of assets and try to operate them until close to the point of failure.