The ABB RED670 is a high-performance Intelligent Electronic Device (IED) designed for the comprehensive protection, monitoring, and control of overhead lines and cables in transmission and sub-transmission networks. As a flagship member of the Relion 670 series, it provides ultra-fast phase-segregated line differential protection, making it an essential component for ensuring grid stability and minimizing equipment damage during internal faults.
Product Introduction and Technical Description
The RED670 offers a versatile platform for multi-terminal line differential protection, supporting configurations for two to five line ends. It integrates advanced functional libraries that include distance protection as a back-up, sophisticated earth-fault protection, and full station automation capabilities via IEC 61850. The device features a modular hardware design, allowing for flexible I/O arrangements and high-speed communication via optical fibers or galvanic connections. Its core processing engine ensures high numerical accuracy and fast tripping times, while the extensive logic programming environment permits customization for complex interlocking and switching schemes.
Product Parameters and Datasheet
The device operates within a wide rated frequency range of 50 Hz to 60 Hz and supports various power supply options, typically ranging from 24-60 V DC to 90-250 V DC. It features high-precision analog inputs for current and voltage (CT/VT), with current inputs rated at 1 A or 5 A. The communication interface supports redundant Ethernet ports using PRP or HSR protocols for seamless network integration. Detailed datasheet specifications confirm its compliance with international standards such as IEC 60255 and IEEE C37.94 for teleprotection.
Country of Origin
This high-precision industrial equipment is primarily engineered and manufactured in Sweden, maintaining the rigorous quality standards associated with ABB’s European production facilities.
Application Areas
The RED670 is extensively used in high-voltage transmission grids, complex multi-terminal circuits, and heavy industrial power networks. It is particularly effective for protected zones involving transformers (line-transformer units) and long-distance subsea or underground cabling where precise fault discrimination is critical.
Product Usage Instructions
Installation should be performed by qualified personnel using the PCM600 Protection and Control IED Manager software for configuration and commissioning. Users must ensure that the communication link between terminals is synchronized, utilizing either a built-in GPS/GNSS clock or an external synchronization source to maintain the integrity of the differential current calculations. Regular maintenance involves checking the fiber optic signal strength and reviewing the internal disturbance recorder logs after any trip events.
Common Questions and Answers (Q&A)
Can the RED670 protect lines with a transformer inside the zone? Yes, the RED670 includes built-in transformer compensation, allowing it to account for phase shifts and transformation ratios within the protected line segment. What communication protocols are supported? It primarily utilizes IEC 61850-8-1 for station bus and IEC 61850-9-2 for process bus communication, alongside DNP3 and Modbus for legacy systems. How many terminals can it support for differential protection? The device is capable of protecting multi-terminal lines with up to five ends, including master-master or master-remote configurations.
Explore More Solutions
For more technical specifications and to browse our full inventory of industrial automation components, visit the ABB RED670 Line Differential Protection product category.
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