The next step in the evolution of protection and control impelementation

This paper introduces the logical "next step" in the evolution of P&C implementation a bridge between today\´s conventional substation and tomorrow\´s IEC 61850 substation. It will introduce the concept of application building using a library of discrete software protection, control, communication, and logic function blocks that are based upon the IEC 61850 logical node. Using a graphical user interface tool the user can optimally build applications and place functionality in appropriately sized and located (distributed) substation IEDs. In addition, the P&C applications that are built may be applied in conventional or IEC 61850 environments or somewhere in between. The paper will also address P&C application testing and testing responsibilities, P&C functionality distributed among the IEDs used in the substation, and finally provide some examples of available P&C solutions.