The ABB RED670 is a high-end Intelligent Electronic Device (IED) designed for the protection, monitoring, and control of overhead lines and cables in transmission and sub-transmission networks, providing high-speed differential protection for multi-terminal line configurations with integrated distance protection and teleprotection capabilities.
Product Introduction
The RED670 belongs to the Relion 670 series, offering versatile protection solutions for various grid configurations. It is engineered to provide sensitive and selective protection for lines, even in cases of weak infeed or high-resistance grounding. The device features a modular design, allowing users to customize hardware and software to meet specific application requirements.
Product Technical Description
This IED utilizes advanced communication protocols and high-speed sampling to ensure phase-segregated differential protection. It supports multiple communication standards, including IEC 61850 Edition 1 and 2, ensuring seamless integration into modern substation automation systems. The internal logic handles complex line arrangements such as three-terminal lines and dual-breaker systems with ease.
Product Parameters and Datasheet
The technical parameters include a wide range of current and voltage inputs, typically supporting rated frequencies of 50 Hz or 60 Hz. It operates with a high degree of accuracy for both protection and measurement functions. The datasheet specifies environmental tolerances, including an operating temperature range from -25°C to +55°C, and robust electromagnetic compatibility (EMC) levels suitable for harsh substation environments. Hardware configurations include various binary input/output modules and optical communication interfaces for long-distance data exchange.
Country of Origin
This equipment is primarily manufactured in Sweden, maintaining the high quality and engineering standards associated with ABB’s European production facilities.
Application Areas
The RED670 is extensively applied in high-voltage power grids, specifically for the protection of critical transmission lines, inter-tie lines, and complex underground cable networks. It is also utilized in industrial power systems where high-speed fault clearance is essential to maintain system stability and protect expensive machinery.
Product Instructions
Installation requires mounting in standard 19-inch racks or flush-mounting in control panels. Configuration is performed using the PCM600 Protection and Control IED Manager software, which allows for parameter setting, logic programming, and disturbance recording analysis. Users should ensure that fiber optic connections for differential communication are verified for signal strength and synchronized timing before commissioning.
Q&A: Frequently Asked Questions
What is the primary advantage of the RED670 over standard distance protection? The RED670 provides phase-segregated line differential protection, which is inherently selective and not affected by power swings or non-homogenous line impedances, making it more reliable for complex line configurations.
Does the RED670 support IEC 61850? Yes, it fully supports IEC 61850-8-1 for station bus communication and IEC 61850-9-2 for process bus sampled values.
Can it be used for three-terminal lines? Absolutely. The RED670 is designed to handle multi-terminal applications, supporting up to five line ends with appropriate communication links.
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