Innovative techniques for intelligent power system mobile data management

Most electric power networks include a variety of protection/IED technology. Migration from electromechanical to digital relays created a huge increase in the volume of acquired data, and, in the speaker's experience, relay records are a mix of paper and digital media; protection data is rarely consolidated or used for decision making in asset management processes once testing is completed. The speaker submits that increasing product and data complexity, in conjunction with multiple generations of equipment is further exacerbated by the observed reduction in the number & skills of many test and maintenance staff: these factors can have a significant impact on overall power system reliability. Elektro Ljubljana D.D. has adopted a new intelligent mobile approach for secondary systems maintenance, enabling advanced data management together with access to rapid, automatic and reliable testing procedures. This presentation describes the solution and how it provides documentation optimization with automatic synchronization of the mobile data throughout the enterprise. Cost implications are also considered. Maintenance of modern protection devices must be adapted to existing and future technologies (e.g. IEC61850). The speaker presents new developments in protection testing methodology termed SOR (stabilization-operation-reset). SOR is a standard, simple and vendor-independent test methodology. This presentation gives practical experience of SOR at Elektro Ljubljana, its specific adaptation to numerical devices and implications for future trends in mobile data management.