IEC61850 standard-based motor protection scheme

Abstract

Three-phase induction motor forms an integral part of production and manufacturing activities in the industry. Motors regularly fail in production and manufacturing plants due to lack/outdated motor protection mechanism in place. This paper discusses implementation of the IEC61850-7-4 standard and its GOOSE message application for motor protection relays. The paper provides protection configuration settings for low voltage motor operated electrically with series trip device. The motor protection lab-scale test bench setup is established at CPUT, CSAEMS lab and tested protection functions using both hardwired and IEC61850 GOOSE messaging signals. The simulation results are analyzed for overload, short-circuit, overvoltage and thermal loading conditions and its shows that GOOSE communication is supervisor to hardwired signals. Therefore, based on the simulation results, it is recommended to implement IEC61850 standard for industrial systems in order to improve protection reliability and reduce the maintenance cost.