This paper suggests a process for performing consistent and thorough commissioning tests through many sources: breaking out relay logic into schematic drawings; using SER, metering, and event reports from relays; simulating performance using end-to-end testing and lab. This paper suggests a process for performing consistent and thorough commissioning tests through many sources: breaking out relay logic into schematic drawings; using SER, metering, and event reports from relays; simulating performance using end-to-end testing and lab. The health of the protection system should be ensured at regular intervals by applying suitable testing methods. Checking other design aspects such as the application configuration, including relay settings, and protection and control schemes, is also of the utmost importance. i) Hydro Generators ii) Generator. Abstract—Performing tests on individual relays is a common practice for relay engineers and technicians. Most utilities have a wide variety of test plans and practices. Managing the bulk of the infrastructure and this traffic is Trafikverket, the Swedish transport administration, which ensures it is business as usual for.