ABB RET650

Description

1. Product Description

2. Product Parameters

Parameter	Specification
Voltage Input	110–240 V AC/DC (control power)
Current Input	1 A or 5 A rated (selectable)
Protection Functions	Differential protection (2W/3W), overcurrent (phase/residual), over/under voltage, frequency protection
Communication Interfaces	IEC 61850-8-1, DNP 3.0 (RS-485/TCP), Modbus RTU/TCP
Digital I/O	Up to 30 binary inputs, 16 binary outputs
Analog Inputs	20 analog inputs (current/voltage)
Operating Temperature	-40°C to +70°C (extended range for harsh environments)
Certifications	IEC 61850, EN 50263 (EMC), Low Voltage Directive (2006/95/EC)

ABB RET650

3. Advantages and Characteristics

• Rapid Protection Response: The RET650 offers sub-cycle differential protection (<10 ms) for critical fault isolation, reducing downtime in power grids.
• Flexible Configuration: Customizable logic blocks and pre-configured templates enable adaptation to diverse applications (e.g., generation, transmission, industrial grids).
• Integrated Monitoring: Real-time metering, harmonic analysis, and tap changer control enhance asset health management.
• User-Friendly HMI: Dynamic three-color LEDs, configurable push-button shortcuts, and multilingual support simplify operation.
• Reliability: Certified to international standards, the module withstands harsh environments (e.g., vibration, temperature fluctuations) with a MTBF > 100,000 hours.

4. Application Fields and Cases

• Utility Substation: A 110 kV substation in Europe deployed the RET650 for three-winding transformer protection, reducing fault clearing time by 30% compared to legacy systems.
• Industrial Campus: A steel plant in Asia used the RET650 to protect 20 MW transformers, integrating temperature monitoring and tap changer control for optimized efficiency.

5. Competitor Comparison

• Single-IED Integration: Combines protection, control, and metering in one device, reducing panel space by 40%.
• Reduced Commissioning Time: Default parameters and automated testing (via RTXP test switch) cut setup time by 50% versus competitors.
• Global Compatibility: Supports multiple communication protocols (IEC 61850, DNP 3.0) and international standards, ensuring interoperability in global projects.
  

  ABB RET650

6. Selection Suggestions

• Compatibility: Verify voltage/current ratings (1 A/5 A) and communication protocols against existing infrastructure.
• Application Complexity: Choose pre-configured models for standard grids or customized versions for specialized needs (e.g., OLTc control).
• Environment: Opt for extended temperature models (-40°C to +70°C) for outdoor/harsh environments.
• Budget: Balance feature requirements (e.g., advanced metering) with cost; pre-configured models offer lower upfront costs.

7. Precautions

• Installation: Ensure CT/VT circuit integrity (verify polarity and burden) and proper grounding per IEC 61850 standards.
• Commissioning: Use ABB’s commissioning tools (e.g., Relion Manager) for parameter validation and functional testing.
• Maintenance: Schedule annual checks for firmware updates, contact wear, and environmental conditions (humidity, dust).
• Safety: Disconnect power before wiring changes; follow lockout-tagout procedures during maintenance.