This paper presents a chip-based relay protection technology based on system-on-chip (SoC), which is described from four aspects, namely, the architectural design of the relay protection SoC, software and hardware cooperative relay protection based on the SoC IP core . This paper presents a chip-based relay protection technology based on system-on-chip (SoC), which is described from four aspects, namely, the architectural design of the relay protection SoC, software and hardware cooperative relay protection based on the SoC IP core . ynamic dual-level characteristic curves for microgrids. By utilizing advanced technologies such as digital-twin technology and hardware-in-the-loop (HIL) testing, the proposed constraints impacted the reliability of power systems? These changes have impact eliability of protection. Relay Protection Engineers are specialists responsible for safeguarding electrical systems against faults and transient events., 07 April 2024 With the rapid development of power grid, the structure and technology of the secondary system in substations are also constantly innovating. The new generation of intelligent substations has achieved online monitoring functions for secondary equipment, making some state. Technical resources and thought leadership for protection and control P&C relays for transmission, transformer, distribution feeders, bus, motors, generators, IEC 61850 process bus and digital meters.