A new fast bus tripping system design of protection relay in an AC power network

Mohammad Ghiasi, Zhanle Wang, Mehran Mehrandezh, Hassan Haes Alhelou, Noradin Ghadimi

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

2 Citations (Scopus)


In this paper, we develop a fast bus protection and automation strategy for adaptive overcurrent (OC) protection in an AC power network. The system includes the SEL751 and SEL751A relays communicating through IEC61850 generic object-oriented substation event (GOOSE) messages. The two relays can communicate with intelligent electronic devices (IEDs) at various locations. The system also consists of transformers, bus bars, and feeders with protection relays to detect OC faults based on time and current. The relay settings are tested based on 138/25kV substation values in the lab. Three points with different currents and fault times on both low-voltage and high-voltage sides are used in the test based on the selected time-overcurrent U3 inverse curve. The presented strategy can quickly clear both low and high-voltage faults of transformers and substations. The obtained results confirmed the effectiveness of the presented method in protecting AC networks.

Original languageEnglish
Title of host publication2023 IEEE IAS Global Conference on Emerging Technologies, GlobConET 2023
EditorsMonica Bianchini, Sanjoy Das
Place of PublicationPiscataway NY USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages6
ISBN (Electronic)9798350331790
ISBN (Print)9798350331806
Publication statusPublished - 2023
EventIEEE IAS Global Conference on Emerging Technologies 2023 - London, United Kingdom
Duration: 19 May 202321 May 2023
https://ieeexplore.ieee.org/xpl/conhome/10149892/proceeding (Proceedings)
https://www.aconf.org/conf_186601.html (Website)


ConferenceIEEE IAS Global Conference on Emerging Technologies 2023
Abbreviated titleGlobConET 2023
Country/TerritoryUnited Kingdom
Internet address


  • AC Power Network
  • Fast Bus Tripping
  • IEC 61850
  • Protection Relay

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