ABB RED670 High-Speed Line Differential Protection Relay for Relion 670 Series Transmission Systems
ABB RED670 High-Speed Line Differential Protection Relay for Relion 670 Series Transmission Systems
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Brand:ABB PLC Item No.:ABB RED670 Product Origin:Sweden Product Dimensions:220 × 177 × 228 mm Product Weight:6 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The ABB RED670 Line Differential Protection Relay is a high-performance intelligent electronic device (IED) designed to protect overhead transmission lines and underground power cables in modern electrical grids. As a key member of the Relion® 670 protection and control family, the RED670 integrates advanced differential protection algorithms with monitoring, measurement, and control functions to ensure secure and stable grid operation.
The relay provides phase-segregated current differential protection, enabling highly selective detection of internal faults on transmission lines while maintaining stability during external disturbances. This advanced protection scheme allows utilities to isolate faults rapidly and minimize power interruptions across the network.
Designed for high-voltage and extra-high-voltage substations, the RED670 supports modern communication protocols such as IEC 61850, allowing seamless integration with digital substations, SCADA platforms, and grid automation systems. Its modular design, powerful processing capabilities, and comprehensive diagnostics make it an essential solution for modern power system protection and control.
Technical Specifications
Parameter
Specification
Product Model
RED670
Manufacturer
ABB
Product Type
Numerical Line Differential Protection Relay
Series
Relion 670 Series
Primary Protection
Phase-segregated current differential protection
Rated System Frequency
50 / 60 Hz
Rated Voltage
Up to 400–765 kV systems
Current Input
1 A / 5 A CT inputs
Analog Inputs
8–12 current/voltage inputs depending on configuration
Digital Inputs
Approx. 17–23 configurable inputs
Digital Outputs
Approx. 16–24 configurable outputs
Communication Interfaces
Ethernet, fiber-optic communication channels
Communication Protocols
IEC 61850, IEC 60870-5-103, DNP3, Modbus
Differential Communication
Dual-channel fiber optic communication
Auxiliary Power Supply
19–250 V AC/DC or 48–250 V DC
Operating Temperature
−40°C to +70°C
Protection Class
IP40 front / IP20 rear
Mounting Method
Panel or 19-inch rack mounting
Dimensions (L × W × H)
220 × 177 × 228 mm
Weight
6 kg
Specifications may vary depending on configuration and hardware options.
Recommended Related Models
Model
Description
REB670
Busbar differential protection relay
REL670
Transmission line distance protection relay
RET670
Transformer differential protection relay
REG670
Generator protection relay
REC670
Bay control and protection relay
Popular ABB Models
Model
Module Type
PM583-ETH
PLC CPU Module
CI840A
Communication Interface Module
AI830A
Analog Input Module
SB822
Power Supply Module
PP865A
Industrial Operator Panel
Applications
The ABB RED670 relay is designed for high-voltage transmission line protection where fast and reliable fault detection is essential.
Typical applications include:
High-voltage transmission line protection
Sub-transmission network protection
Underground cable protection systems
Multi-terminal transmission line networks
Renewable energy grid interconnections
Industrial high-voltage power distribution systems
Digital substations and smart grid infrastructures
Its differential protection principle ensures highly selective protection even for long-distance transmission lines.
Advantages
High-Speed Differential Protection
The relay rapidly detects internal faults on transmission lines and clears them with extremely fast tripping times.
Phase-Segregated Fault Detection
Independent phase monitoring allows precise identification of the faulted phase and improves protection accuracy.
Advanced Communication Integration
Support for IEC 61850 enables high-speed data exchange and seamless integration with digital substation architectures.
Flexible System Configuration
Supports multi-terminal line protection schemes and various network topologies.
Integrated Backup Protection Functions
Includes additional protection functions such as overcurrent, distance protection, and breaker failure protection.
Comprehensive Monitoring and Diagnostics
Built-in event recording, disturbance recording, and fault location tools assist engineers in system analysis and maintenance.
Technical FAQs
1. What is the main function of the ABB RED670 relay?
It provides line differential protection for high-voltage transmission lines and cables.
2. Which protection series does the RED670 belong to?
It is part of ABB’s Relion 670 series of protection and control relays.
3. What type of protection principle does it use?
The relay uses phase-segregated current differential protection.
4. Can the RED670 support multi-terminal line protection?
Yes, it can protect transmission lines with multiple terminals.
5. What communication protocols are supported?
It supports IEC 61850, DNP3, IEC 60870-5-103, and Modbus communication protocols.
6. What industries typically use this relay?
Electric utilities, power generation plants, renewable energy systems, and large industrial power networks.
7. What is the operating temperature range?
The relay typically operates between −40°C and +70°C.
8. Does the relay support digital substations?
Yes, it is designed for IEC 61850-based digital substation automation.
9. Can the RED670 perform fault location?
Yes, it includes disturbance recording and fault location functions.
10. Why choose ABB RED670 for transmission line protection?
Because it provides high-speed differential protection, flexible system configuration, and reliable integration with modern power grid automation systems.
