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ABB RET670 1MRK004816-AB Protection relay device
ABB RET670 1MRK004816-AB belongs to the Relion® series, an intelligent electronic device (IED) designed specifically for large power transformers, integrating protection, control, measurement and monitoring functions. The device is suitable for substations in utilities and industrial fields, providing comprehensive protection for various power transformers (including autotransformers, three-phase transformers, etc.), supporting multiple system architectures such as single busbar and double busbar, and adapting to different circuit breaker configurations. It supports multiple communication protocols such as IEC 61850, enabling seamless integration with substation automation systems, and adopts a withdrawable plug-in design for easy installation, commissioning and maintenance.
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ABB RET670 1MRK004816-AB Protection relay device
Specific Parameters
- Rated voltage: 100-240V AC/DC
- Rated current: 1A or 5A (optional)
- Frequency: 50/60Hz
- Analog inputs:
- Phase current inputs: Adapt to 1A or 5A CT secondary ratings
- Voltage inputs: Support 100V (line voltage)/57.7V (phase voltage) VT secondary values
- Earth current inputs: Adapt to 0.2A or 1A CT ratings
- Digital inputs/outputs: 16 digital inputs, 10 relay outputs
- Communication interfaces: 2 Ethernet interfaces (10/100Mbps), 1 RS485 interface, supporting IEC 61850, Modbus, DNP3 protocols
- Operating temperature range: -40°C to +70°C
- Storage temperature range: -40°C to +85°C
- Relative humidity: 5%-95% (non-condensing)
- Dimensions: Width 177mm, height 177mm (4U), depth 201mm
- Weight: Approximately 4.2kg
Product Performance
- Comprehensive protection functions: Equipped with differential protection (including magnetic braking, inrush current suppression), overcurrent protection, earth fault protection, over-temperature protection, voltage abnormality protection, etc., which can quickly detect and isolate transformer faults, reducing the risk of equipment damage.
- High-precision measurement: Real-time collection of transformer current, voltage, power, energy, temperature and other parameters, with measurement accuracy up to ±0.2% (current/voltage), providing accurate data for status evaluation.
- Flexible control logic: Supports custom control strategies, enabling transformer tap adjustment, circuit breaker operation and other functions to adapt to different operating mode requirements.
- Reliable communication capabilities: Compatible with multiple industrial communication protocols, ensuring high-speed data interaction with automation systems, supporting remote monitoring, parameter configuration and fault diagnosis.
- Strong anti-interference: Complies with IEC 61000-4 series electromagnetic compatibility standards, maintaining stable operation in strong electromagnetic environments to avoid misoperation or refusal to operate.
- Comprehensive self-inspection mechanism: Built-in hardware and software self-inspection functions, real-time monitoring of device status, automatic alarm and record information when abnormal, simplifying maintenance processes.
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