ABB NTDI01 Digital I/O Termination Unit

REB670 | ABB | Relion 670 Busbar Differential Protection

REB670 | ABB | Relion 670 Busbar Differential Protection

Availability: 10 left in stock

Product Overview The REB670 is a high-performance numerical protection relay from the ABB Relion 670 series, specifically engineered for the high-speed differential...

SKU: REB670

Manufacturer: ABB
Product No.: REB670
Product Type: Busbar Protection Relay
Product Origin: Switzerland
Payment:T/T, Western Union
Weight: 6000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The REB670 is a high-performance numerical protection relay from the ABB Relion 670 series, specifically engineered for the high-speed differential protection of busbars in medium- and high-voltage substations. As an Intelligent Electronic Device (IED), the REB670 integrates complex protection logic, real-time monitoring, and advanced communication capabilities into a single unit. It is designed to provide maximum selectivity, ensuring that internal busbar faults are cleared within milliseconds while maintaining absolute stability during external through-faults or heavy load conditions. This relay is a critical component for utility transmission grids, large-scale power plants, and industrial distribution networks where system availability is paramount.

Detailed Technical Specifications

Manufacturer: ABB
Model: REB670
Series: Relion 670 Protection and Control Series
Device Type: Numerical Busbar Protection Relay
Protection Functions: Busbar differential protection (low/high impedance), breaker failure protection, backup overcurrent, and voltage supervision.
Rated Current Input: 1 A or 5 A (Software/Hardware selectable)
Rated Voltage Input: Up to 110 V AC
Nominal Frequency: 50 / 60 Hz
Auxiliary Power Supply: Wide range 24–250 V DC or 48–240 V AC
Binary Inputs/Outputs: Scalable, programmable digital I/O for logic interlocking and signaling
Communication Protocols: IEC 61850-8-1 (Ed. 1/Ed. 2), IEC 60870-5-103, Modbus RTU/TCP, DNP3
Time Synchronization: Precision timing via SNTP, IRIG-B, or GPS (via specialized modules)
Interface: Local HMI with high-resolution LCD and navigational keypad
Operating Temperature: -25°C to +70°C
Storage Temperature: -40°C to +85°C
Mounting Configuration: 19-inch rack mount or panel flush-mount options
Shipping Weight: 6.0 kg
Standards Compliance: IEC 60255, CE, UL

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