Assist the Substation Relay and Control Tester- Journey Level Technician in installing, operating, constructing, and maintaining all types of protective and control systems for transformers, circuit breakers, reclosers, capacitor banks, control cables, relays, meters, and miscellaneous substation equipment. Direct Supervision: A Substation Relay and Control Tester- Journey Level Technician observing an employee closely enough at working level to provide immediate feedback if the employee is about to perform an unsafe act.