A Study on the Testing Procedures of IEC 61850 Based Transformer Protective IED

Korea Electric Power Corporation in charge of the power IT project "Development of Prototype for Advanced Substation Automation System based on the Digital Control Technology", is performing the verification of performance of the substation automation system based on IEC 61850. In order to verify a transformer protective IED that might be operating in substation automation system, the new standardized document and procedures are required in the aspect of the utility like KEPCO. But there is nothing to describe systematically how to verify IEC 61850 based IED in the system environment except an individual IED testing way. This paper will present the substation automation system based ways and procedures to verify the protective function of the IED using UML (Unified Modeling Language).