ABB Relion ® RET620 Transformer Protection and Control Device

Enhance data exchange efficiency: Different communication protocols are suitable for different application scenarios and data transmission requirements. RET620 supports multiple protocols that can select the most suitable method for data transmission based on specific situations, thereby improving the efficiency of data exchange. For protection action signals with high real-time requirements, they can be quickly transmitted through GOOSE messages of IEC 61850 to ensure timely response in case of faults; For device parameter queries and configuration operations with relatively low real-time requirements, Modbus protocol can be used for stable and reliable communication.

Improving system reliability: By supporting redundant protocols HSR and PRP, RET620 enhances system reliability at the communication level. In the event of network failure, redundancy mechanisms can ensure uninterrupted data transmission and avoid system failures caused by communication interruptions. When a communication link encounters a problem, the HSR or PRP protocol can automatically switch to the backup link to ensure that communication between devices is not affected, thereby improving the reliability and stability of the entire power system operation.

Adapting to different power system environments: Due to the large scale of the power system, the requirements for communication protocols may vary in different regions and application scenarios. The multi protocol support feature of RET620 enables it to adapt to various power system environments. Whether in newly built digital substations or traditional substations that require upgrading and renovating existing equipment, RET620 can meet different communication needs with its rich protocol support, providing convenience for the modernization and upgrading of the power system.