REF620 NBFNAAAAABC1BNN1XF protection and control device

The REF620 NBFNAAAAABC1BNN1XF is a protection and control device in the ABB Relion family for the protection and control of power systems. Here are some of the key features and application areas of the product:

Versatility:
The REF620 provides a wide range of protection, control and supervision functions for a variety of power systems, including radiant, ring and mesh distribution networks.

Communication protocol support:
The unit supports multiple communication protocols such as IEC 61850, DNP3 (TCP/IP) and IEC 60870-5-103, ensuring seamless integration with other systems.

Protection function:
The REF620 is designed to provide both primary and backup protection, including short-circuit protection, overcurrent protection, and ground fault protection.

Control function:
The unit has local and remote control functions and provides multiple freely assignable binary input/output and logic circuits for establishing interlocking functions for control and circuit breakers and motor operating switches.

Advanced fault location:
The REF620 features advanced short-circuit and ground fault rapid location to improve grid reliability and security.

REF620E_F NBFNAAAANDA1BNN1XF 

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.