ABB REU-610

Description

Technical Parameters ABB REU-610

Product Advantages and Features ABB REU-610

1. Comprehensive Line Protection, Ensuring Grid Stability

   ABB REU-610 is equipped with a full set of protection algorithms optimized for medium-voltage lines, covering overcurrent, earth fault, and other common faults in distribution networks. Its configurable auto-reclosing function can quickly restore power supply after temporary faults, reducing power outage time and improving the reliability of the power grid. The relay can accurately distinguish between permanent and temporary faults, avoiding unnecessary reclosing operations.

2. High-Precision Measurement and Data Logging

   ABB REU-610 realizes high-precision measurement of key electrical parameters such as three-phase current, voltage, active/reactive power, and frequency. It supports fault waveform recording and event logging, with a sampling rate of up to 2kHz, providing detailed data for post-fault analysis and grid optimization. The built-in memory can store up to 100 fault records, which can be easily exported via communication interfaces.

3. Standardized Communication Protocols, Supporting Smart Grid Integration

   ABB REU-610 supports international standard protocols including IEC 61850 and Modbus, which can be seamlessly integrated into smart substation systems. The dual-communication interface design ensures data transmission reliability, enabling remote parameter configuration, fault diagnosis, and control without on-site operation. This feature greatly reduces the workload of operation and maintenance personnel.

4. Strong Environmental Adaptability and Easy Maintenance

   ABB REU-610 adopts industrial-grade reinforced hardware design, with built-in multi-level EMI filtering and surge protection circuits, which can resist electromagnetic interference, voltage fluctuations, and mechanical vibration in harsh industrial environments. The user-friendly LCD HMI allows for easy local parameter adjustment and status query, and the modular design facilitates on-site replacement and maintenance, shortening equipment downtime.

Application Cases

1. Medium-Voltage Overhead Line Protection

   In a 10kV overhead line protection project for a rural power grid, ABB REU-610 is installed in the distribution substation, responsible for real-time monitoring of line current and voltage. When a temporary fault such as lightning strike occurs, the relay triggers auto-reclosing to restore power supply within seconds. For permanent faults such as line breakage, it issues a tripping command to isolate the fault section, ensuring the safe operation of the entire rural power grid.

2. Industrial Cable Feeder Protection

   In a petrochemical plant’s 6kV cable feeder protection system, ABB REU-610 monitors the operation status of the cable lines connecting the substation and production workshops. Its earth fault protection function can quickly detect leakage currents caused by cable insulation damage, preventing electric shock accidents and equipment damage. The IEC 61850 communication function realizes data interaction with the plant’s power monitoring system, enabling remote real-time monitoring.

3. Urban Distribution Network Automation

   In an urban distribution network automation project, ABB REU-610 is deployed in multiple distribution cabinets, forming a centralized monitoring and control system. The relay’s remote control function allows operators to remotely switch on/off the feeder lines according to load changes, optimizing power distribution and reducing line loss. The high-precision measurement data provides a reliable basis for load forecasting and grid planning.

Competitor Comparison

Selection Suggestions

1. For medium-voltage overhead lines, cable feeders, and urban/rural distribution networks that require comprehensive protection and smart integration, ABB REU-610 is the preferred choice due to its configurable auto-reclosing function, high-precision measurement, and standardized communication protocols.
2. When selecting, confirm the CT/VT ratio according to the rated current and voltage of the protected line, and configure the corresponding protection functions based on the line type (overhead or cable).
3. For smart grid applications, prioritize the configuration of the IEC 61850 communication module to realize seamless integration with the substation automation system.

Precautions

1. When installing ABB REU-610, wear an anti-static wristband to prevent static electricity from damaging the internal circuit board; ensure correct polarity of CT and VT wiring to avoid protection misoperation caused by reverse connection.
2. Parameter configuration must be carried out in accordance with the ABB official manual, and the protection setting values should be calculated based on the actual grid parameters, avoiding blind configuration that may lead to protection failure or maloperation.
3. During long-term operation, regularly check the tightness of the wiring terminals to prevent poor contact caused by vibration; regularly back up the configuration parameters and fault records to avoid data loss due to module failure.
4. In outdoor or coastal applications, install the relay in a sealed and moisture-proof cabinet, and perform regular anti-corrosion maintenance on the wiring terminals to prevent corrosion caused by salt spray and humidity.

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