SCADA Maintenance and Refurbishment with Security Issue in Modern IT and OT Environment

摘要

When working with SCADA systems, transmission system operator faces challenges, which arise from several issues that appeared over the last 10 years. SCADA system is a crucial application for power system control. Refurbishment of those systems are usually planned once in a decade or even rarer. This strategy is now undergoing a change because of intertwinement of SCADA systems with IT industries. Hardware platform for SCADA originates from IT world, which has different rate of technology change. With new IT landscapes, cyber security issues strongly influence the whole SCADA environment. Those facts and aspects will be presented in detail in this paper, with examples from real Transmission system operator (TSO) experience with in depth analyses of issues TSO faces in everyday operation.