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Wei Xiu zhu
Wechat:13395077993
Yiwu Beixun Automation Technology Co., Ltd
China (Zhejiang) Pilot Free Trade Zone, No. 2 Chunpai Road, Beiyuan Street, Yiwu City
website：www.bxplc2.com
Email: 3076784238@qq.com

ABB REB670 Relion 670 Series | Advanced Busbar Protection and Control IED for Power Substation

Datasheet ABB REB670

Industrial power substations require ultra-reliable protection devices to prevent grid faults and equipment damage, and the ABB REB670 is one of the most trusted busbar protection IEDs in the Relion 670 product lineup. Designed for high-performance substation busbar protection, the ABB REB670 intelligent electronic device delivers fast, accurate, and secure differential protection for all types of busbar configurations in transmission and distribution power systems. Engineered to handle complex grid operating conditions, this protection relay effectively identifies internal busbar short-circuit faults while remaining stable during external system disturbances.

 Widely deployed in utility substations, industrial captive power plants, renewable energy substations, and heavy industry power distribution networks worldwide, the REB670 ensures continuous grid safety and minimizes unplanned power outages. Aging hardware, firmware errors, and component burnout often cause protection malfunction in old units. We supply fully tested pre-owned and new surplus ABB REB670 relays, providing cost-effective replacement solutions for substation maintenance, system upgrade, and emergency spare part stocking.

Unique Technical Strengths of ABB REB670

• Adaptive Busbar Differential Protection: The ABB REB670 features advanced differential algorithm logic that adapts to multiple busbar layouts, offering precise fault detection for single bus, double bus, and breaker-and-a-half substation structures.
• Superior CT Saturation Withstand Capability: Built with anti-saturation protection technology, the REB670 avoids false tripping during severe external short-circuit current and CT saturation scenarios, greatly improving substation operation stability.
• High-Speed Fault Isolation: Achieves ultra-fast tripping action for internal bus faults, quickly isolating faulty zones to prevent fault expansion and large-scale power grid tripping accidents.
• Multi-Functional Integrated Design: Combines busbar protection, fault recording, event report logging, real-time data monitoring and bay control auxiliary functions to simplify substation secondary system configuration.
• Full IEC 61850 Compliance: Supports IEC 61850 communication standard, GOOSE messaging and MMS data transmission, enabling seamless integration with modern smart substation automation systems.
• Durable Substation-Grade Reliability: Designed for 24/7 continuous operation in high-interference substation environments, resisting voltage surge, electromagnetic interference and temperature variation.

Typical Industrial & Utility Applications

The ABB REB670 protection relay is widely adopted in smart substation reconstruction and new energy power construction projects. It is the core protection device for medium voltage, high voltage and extra-high voltage busbar systems, commonly used in grid utility substations, solar power station booster stations, wind farm collector substations, chemical plant self-power stations, and large manufacturing enterprise power distribution systems. As numerous traditional substations face aging secondary equipment renovation, the REB670 has become the preferred replacement model for upgrading outdated busbar protection devices due to its stable performance and excellent system compatibility.

Product Overview & Specifications

Why Choose Our ABB REB670 Spare IEDs

• Verified Fully Functional Units: Every ABB REB670 relay undergoes complete protection logic testing, communication debugging and aging screening to ensure 100% functional availability for substation operation.
• Ready Stock for Urgent Repair: We maintain large inventory of REB670 devices, supporting global fast delivery for substation emergency maintenance and annual overhaul projects.
• Obsolete ABB Relay Sourcing: Specialized in supplying end-of-life and hard-to-source Relion 670 series protection relays with shorter delivery cycles than official OEM channels.
• Version Matching Service: Professional technical team confirms hardware version, firmware revision and project configuration to avoid system incompatibility issues.
• Industrial ESD Safety Packaging: Adopts anti-static, shockproof and moisture-proof packaging to protect precision power protection devices during international logistics.
• Global After-Sales Technical Support: Provides remote parameter setting, field commissioning guidance and fault diagnosis support for substation upgrade and maintenance.

Yiwu Beixun Automation Technology Co., Ltd. specializes in industrial automation. We provide global customers with original imported DCS system components, PLC system components, and comprehensive solutions. With the core values of “leading technology, excellent service”, we utilize our rich industry experience and high-quality supply chain resources to become a reliable partner for your equipment upgrade and maintenance.