Design Of An Iec61850 Based Substation Automation and Protection Panel : Including peer to peer relay communication

This paper discusses the design and testing of an IEC61850 based Substation Protection Panel using SEL protective relays. The modelled substation includes multiple zones of protection. Faults are applied to the system using push-buttons to analyse the operation and extended features of Intelligent Electronic Devices (IEDs). These relays operate the contactors which open to disconnect the faulty part of the Substation model. Light indicators are used to show the open or closed positions of the contactors. The Protection Panel operates as required under internal and external fault conditions. The Panel is capable of peer to peer communication between protective relays (IEDs) using GOOSE messages. The panel can be used to demonstrate some applications of the IEC61850 in Substation Automation and Protection to Electrical Engineering Students at the University of Cape Town.