Substation Control System – Croatian Distribution Utilities Experiences

M. Govorčin, I. Đurić, and G. Leci (Croatia)


Protection and control, feeder terminal (IED), substation control system, IEC60870-5-103, substation monitoring system


Modern numerical protection relays and feeder terminals feature at least one system communication port for data connection with substation monitoring or substation control system, using standard or private communication protocol. Presented in paper are experiences and some solutions in practice of design. Implementation of supervision and control system in power distribution based on IEC60870-5-103 communication protocol with feeder terminals (IED) and numerical protection devices of different manufacture.

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