Using Power System Event Data to Reduce Downtime

A reliable electric power supply is critical to the success of any industrial facility. Electrical faults and disturbances cannot always be avoided, but a quick diagnosis of problems can reduce downtime. Using event data from digital relays can provide valuable information to identify the root cause of problems and offer solutions. The data can also assist with commissioning during planned outages. This paper provides real-world examples of industrial applications that demonstrate how to improve electrical power system reliability. These examples include motor protection and starting, transformer and bus protection, main-tie-main applications, and feeder protection.