The ABB REF620E_F NBFNAANNNCC1BNN1XF is a part of the REF620 series of protection and control relays from ABB. These relays are designed for the protection of electrical systems, particularly in distribution and industrial power applications.

Product Name:

ABB REF620E_F NBFNAANNNCC1BNN1XF

• ABB: Manufacturer, a global leader in power and automation technologies.
• REF620E_F: Indicates this is a model of the REF620 series with an advanced feature set.
• NBFNAANNNCC1BNN1XF: The alphanumeric code typically represents specific configurations, such as firmware options, protection elements, communication protocols, or terminal variants. These are unique to each relay configuration.

Product Description:

The REF620E_F is an advanced multifunctional protection and control relay that offers flexibility and reliability for the protection of power systems, including feeders, motors, transformers, and generators. This relay is equipped with multiple protection functions, monitoring capabilities, and communication features. It is suitable for use in industrial, utility, and infrastructure applications where reliable protection, monitoring, and control are required.

The REF620 series is particularly well-suited for applications where space constraints are a factor and where protection needs to be handled in a compact device. It typically includes functions for overcurrent protection, differential protection, and fault location, among others.

Key Features:

• Flexible Protection Functions: Provides a wide range of protection features, including overcurrent, undervoltage, overvoltage, and earth fault protection, as well as directional protection and motor protection.
• Advanced Communication Capabilities: Supports multiple communication protocols such as IEC 61850, Modbus, and DNP3, allowing seamless integration into modern digital substation systems.
• Event Recording and Data Logging: Includes features for capturing event logs, fault records, and performance data, enabling advanced diagnostics and troubleshooting.
• User-friendly Interface: Typically comes with a graphical LCD interface for easy configuration and monitoring.
• Compact Design: Allows for space-saving in panel installations and is ideal for retrofitting existing installations.

Product Parameters:

• Voltage Input Range: Typically 110–240 V AC/DC for auxiliary power supply.
• Protection Functions: Overcurrent (IDMT/Definite Time), Earth Fault, Voltage Protection, Differential Protection, Motor Protection, etc.
• Communication Protocols: IEC 61850, Modbus RTU/TCP, DNP3, etc.
• Output Contacts: Multiple output contacts for alarms and tripping.
• Auxiliary Inputs: Digital inputs for additional monitoring or trigger signals.
• Display: LCD graphical display for status, configuration, and monitoring.
• Environmental Conditions: Suitable for operation in a wide range of temperatures (typically -20°C to 60°C), and resistant to dust and humidity.

Specifications:

• Nominal Voltage: 110–240 V AC/DC
• Power Consumption: Varies by configuration but typically low power consumption for energy-efficient operation.
• Dimensions: Compact form factor (specific dimensions depend on the model, generally around 144mm x 144mm x 120mm).
• Weight: Approximately 1–2 kg, depending on the model and configuration.
• Accuracy: Typically < 1% for current measurements and fault detection.
• Protection Standards: Complies with international standards such as IEC 60255, IEC 61850, and others for power system protection.

Product Use:

The REF620E_F NBFNAANNNCC1BNN1XF is used for protection, control, and monitoring of electrical distribution systems, including:

1. Feeder Protection: Protects medium-voltage feeders from overcurrent, short circuits, and earth faults.
2. Motor Protection: Provides overcurrent, undercurrent, and thermal protection for motors.
3. Transformer Protection: Offers differential protection for transformers, as well as overcurrent and fault protection.
4. Substation Protection: Can be used in digital substations for automatic fault isolation and restoration.
5. Industrial Applications: Used in industrial plants for protection of electrical distribution systems.
6. Utilities: Deployed in utilities to safeguard power transmission and distribution networks.

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