REF620 NBFNAAAAABC1BNN1XF 保护和控制装置

The REF620 is a feeder protection and control device in the ABB Relion family that is primarily used for the protection and control of power systems, including the protection, control, measurement and monitoring of public and industrial power grids. It provides feeder overcurrent and ground fault protection and is suitable for neutral ungrounded networks and resistance or impedance neutral grounded networks. In addition, the REF620 features interstation communication and supports IEC61850 communication standards, including GOOSE messages and setting values based on IEC 61850-8-1, as well as DNP3, IEC 60870-5-103 and Modbus® protocols.

Application cases in the field of intelligent logistics mainly focus on the use of technologies such as the Internet of Things, big data and AI to achieve automation, intelligence and digitalization of logistics processes. For example, Huawei Songshanhu Supply Chain Logistics Center uses a variety of advanced technologies such as radio frequency (RF), electronic label picking system (PTL), cargo to person selection (GTP), and rotary conveyor belt (Carrousel) to achieve material reception, storage, selection, assembly, distribution and other functions. Sf Technology uses artificial intelligence, operations optimization, Internet of Things and other technologies to optimize the logistics industry’s collection, transfer, transportation, distribution, marketing, customer service and other links.