REF620E_1G NBFNAANNNDA1BNN11G | Feeder protection and control relay | REF542PLUS

Model: REF620E_1G NBFNAANNNDA1BNN11G

Category: Feeder protection and control relays

Finish: New/not new

Delivery time: from stock

Warranty: One year

Express: SF Express/Debon

Net weight: 7kg

Feeder protection and control relays play a key role in power systems, primarily for the protection, control, measurement and monitoring of utility and industrial distribution systems. The following is a detailed explanation of feeder protection and control relays (using ABB REF620 IEC as an example) :

I. Product overview

The ABB REF620E_1G NBFNAANNNDA1BNN11G IEC is a dedicated feeder management relay that integrates protection, control, monitoring and supervision functions in a single relay, providing a compact solution for a variety of feeder applications. This relay is suitable for radial, ring and mesh networks, both with and without distributed generation.

Two, the main function

Protection Features: REF620E_1G NBFNAANNNDA1BNN11G IEC offers a wide range of protection and control features, including various protections for incoming and outgoing wires, as well as an extensive portfolio of ground fault protection products. Its unique multi-frequency admittance based protection offers higher sensitivity and selectivity.

Control functions: Relays support advanced rapid fault location for short and ground faults, interconnect protection for distributed generation, capacitor banks, basic motor and arc protection, and more.

Measurement and monitoring capabilities: The REF620 IEC features a large graphical display for displaying customizable SLD (switching logic diagram) and can be accessed locally or remotely via an easy-to-use web browser-based HMI (Human Machine interface).

3. Technical characteristics

Functional scalability and customization: The REF620 IEC is functionally scalable and has a wide range of possibilities to easily customize the configuration according to the needs of a specific application.

Draw-out plug-in design: This design facilitates quick installation and testing, improving work efficiency.

Communication protocol support: Native IEC 61850 versions 1 and 2 are supported, including redundant HSR and PRP, as well as Modbus, DNP3 and IEC 60870-5-103 communication protocols, making communication with other devices more flexible and efficient.

Time synchronization: Supports different time synchronization methods, including high-precision time synchronization through the IEEE 1588 V2 Precise Time protocol to ensure data accuracy and consistency.

4. Application field

The REF620 IEC series of relays are ideal for protection and control in more advanced distribution applications and are widely used in areas such as incoming and outgoing line protection in medium voltage substations.