Smart grid substation equipment maintenance management functionality based on control center SCADA data

Classic approach to preventive maintenance of equipment in power system substations was based on periodical according regulations and best practices recommended by vendors. SCADA HOPS is used primary for real-time monitoring control the substations. Real time data available databases contain useful information substation optimization operational conditions. Malfunctions failures are monitored via system. Analyses these can be evaluate strategy plan reconstructions replacement equipment. This article presents current management HOPS, which only transmission operator Croatia, possible improvements efficiency using data. Prerequisite analyses kinds standardization unification names structures. put a lot effort during last refurbishment centers. Use analysis drives need vice versa. Examples statistical done multiple levels. High level provide global overview real It point suspicious that require detailed analyses. The signals appear often list indicate there problem equipment, or alarm configuration. Low target important maintenance. In this paper some low presented switching transformer lifetime, operation, tap changer operation. An made number operations breakers disconnectors different Preventive should normal even more interrupting fault current. availability duration thus providing valuable managers. RTU communication shown.