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Product Overview
The ABB REF545KC133AAAA is a high-performance numerical relay and protection device designed for medium and high-voltage power systems. As part of ABB’s REF545 series, this advanced protection relay combines state-of-the-art technology with robust functionality to ensure reliable protection, control, and monitoring of electrical networks. The REF545KC133AAAA is engineered to detect and respond to faults quickly, minimizing downtime and safeguarding critical infrastructure. It serves as a cornerstone in power system automation, offering comprehensive protection functions such as overcurrent, distance protection, autoreclosure, and event recording, while supporting seamless integration with supervisory control and data acquisition (SCADA) systems.
Designed for versatility, the REF545KC133AAAA caters to a wide range of applications, including transmission and distribution networks, industrial power systems, and renewable energy installations. Its modular architecture allows for flexible configuration, enabling users to tailor the device to specific system requirements. By providing real-time data and diagnostics, the relay enhances operational efficiency and simplifies maintenance, positioning it as a trusted solution for modern power grid management. ABB’s commitment to innovation is evident in the REF545KC133AAAA, which balances precision, reliability, and ease of use to meet the evolving needs of the energy sector.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | REF545KC133AAAA |
| Manufacturer | ABB |
| Product Type | Numerical Protection Relay & Control Device |
| Voltage Rating | 100 V AC/DC (control power) |
| Current Rating | 1 A/5 A (input current channels) |
| Communication Protocols | IEC 61850, Modbus RTU/TCP, DNP3 |
| Protection Functions | Overcurrent, Distance, Earth Fault, Breaker Failure, Auto-reclosing |
| Input/Output Channels | 24 digital inputs, 16 relay outputs |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (W×H×D) | 144 mm × 210 mm × 240 mm |
| Compliance | IEC 61000-4, IEC 61850, IEEE C37.111 |
| Certification | CE, RoHS, IEEE Standard Compliance |
Main Features and Advantages
The REF545KC133AAAA stands out for its advanced protection algorithms and user-friendly interface, delivering precise fault detection and rapid tripping to minimize system disruptions. Its multi-functionality allows it to serve as both a protection relay and a control unit, reducing the need for multiple devices and simplifying system architecture. The relay supports IEC 61850 communication, a globally recognized standard for smart grids, enabling seamless integration with modern substation automation systems and facilitating remote monitoring and configuration.
A key advantage of the REF545KC133AAAA is its modular design, which allows for easy expansion of I/O channels and customization of protection functions. This flexibility makes it suitable for both new installations and retrofitting existing systems. The device also features a high-resolution LCD display and intuitive software tools for configuration and analysis, streamlining commissioning and maintenance processes. Additionally, its rugged construction and wide operating temperature range ensure reliable performance in harsh industrial environments, making it a durable choice for demanding applications.
The relay’s built-in event recorder and fault recording capabilities provide detailed diagnostics, helping operators identify and resolve issues quickly. By combining high-speed processing with energy-efficient design, the REF545KC133AAAA optimizes power consumption while maintaining superior performance, aligning with global sustainability goals.
Application Field
The REF545KC133AAAA is ideally suited for medium and high-voltage power systems across various industries, including utilities, oil and gas, manufacturing, and renewable energy. In utility networks, it protects transmission and distribution lines, transformers, and motors, ensuring stable power supply and grid reliability. For industrial applications, such as large-scale manufacturing plants or data centers, the relay safeguards critical equipment from overloads and faults, minimizing production downtime and costly repairs.
In renewable energy sectors like wind and solar farms, the REF545KC133AAAA plays a vital role in protecting inverters, switchgear, and grid connection points, enabling seamless integration of intermittent energy sources into the grid. Its support for IEC 61850 makes it an excellent choice for smart grid projects, where real-time data exchange and centralized control are essential. The relay is also suitable for retrofitting older protection systems, offering modern communication capabilities and enhanced functionality without requiring a complete system overhaul.
By addressing the need for reliable, intelligent protection in complex power networks, the REF545KC133AAAA helps operators enhance system security, improve fault response times, and achieve higher levels of operational efficiency.
Related Products
- REF542PLUS: A compact numerical relay for distribution networks, offering basic protection and measurement functions at a lower cost.
- REF615: A versatile protection relay for power transformers, featuring advanced differential protection and thermal modeling.
- REF543: Designed for motor and generator protection, with specialized functions for rotating equipment.
- REF546: Caters to transmission networks, offering high-speed distance protection and wide-area monitoring capabilities.
- REF545LC: A lower-cost variant of the REF545 series, suitable for simpler protection requirements in distribution systems.
- SPC500: A SCADA system from ABB that integrates with the REF545KC133AAAA for centralized monitoring and control.
- PM866AK01: A control module compatible with ABB’s AC 800M PLC, enhancing system interoperability.
- REA10: A communication adapter that expands the relay’s connectivity options for legacy systems.
Installation and Maintenance
Pre-installation preparation: Ensure the installation environment meets the REF545KC133AAAA’s specifications, including temperature, humidity, and electromagnetic compatibility (EMC) requirements. Verify proper wiring for power, current/voltage inputs, and communication interfaces, following ABB’s guidelines to avoid signal interference. Secure the device in a suitable enclosure or panel, allowing adequate space for heat dissipation and easy access for future maintenance.
Maintenance recommendations: Regularly inspect the REF545KC133AAAA for physical damage or loose connections, and clean the enclosure to prevent dust accumulation. Use ABB’s Relion® Protect software to update firmware and review event logs, ensuring the relay operates with the latest features and security patches. Conduct periodic functional tests to validate protection algorithms and communication protocols, and verify that all settings align with the system’s protection scheme. If issues arise, consult ABB’s technical support for diagnostic assistance or replacement parts, ensuring minimal downtime.
Product Guarantee
ABB stands behind the REF545KC133AAAA with a comprehensive quality assurance program, ensuring each device meets rigorous industry standards for reliability and performance. The product is backed by a standard warranty covering defects in materials and workmanship, providing customers with peace of mind. ABB’s global service network offers 24/7 technical support, enabling quick resolution of inquiries and onsite assistance when needed. For long-term system viability, ABB provides firmware updates and lifecycle management services, ensuring the REF545KC133AAAA remains compatible with evolving grid technologies. By prioritizing customer satisfaction and product durability, ABB reinforces its commitment to delivering innovative, trustworthy solutions for power system protection.
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