Abstract :
IEC 61850 [1] is changing the substation protection and control community, replacing hard-wired systems with data-based systems and networks. At the same time, it is causing divisions between the suppliers of this new technology and power system operators who must maintain an existing asset base, with existing skills and techniques. As the debate about the advantages and disadvantages of an IEC 61850 approach develops, this paper takes a network operator´s view, and looks at the overall impact of IEC 61850 on the business. Network Rail is developing IEC 61850 designs for a new generation of electrification substations, and whilst still early in the process there are emerging benefits in developing the expertise as an informed client, designer and operator of integrated protection and control systems. Originally considered as a means of reducing substation wiring and implementation cost, it is becoming evident that IEC 61850 can be used to address wider asset management issues, which are now affecting most power system network operators. The paper looks at these issues, discusses how IEC 61850 is helping to provide Network Rail with new solutions, and looks at the changes needed to own and operate this technology.
