Product Name:

ABB RET670 – Intelligent Protection and Control Relay

Product Description:

The RET670 is a part of ABB’s Relion® family of protection and control relays, designed for high-voltage and medium-voltage electrical networks. It is a versatile and highly customizable protection relay primarily used for the protection, control, and monitoring of electrical networks. The RET670 is widely used in power distribution networks and industrial applications where robust, reliable, and secure protection is needed.

The RET670 relay supports a wide range of protection schemes for both simple and complex network configurations, such as transformer protection, busbar protection, motor protection, and more. It can be integrated into substation automation systems and provides advanced communication capabilities, making it an ideal choice for smart grids and modern electrical infrastructure.

Product Parameters and Specifications:

• Rated Voltage:
  • 110 V DC or 220 V DC (Nominal)
  • Optional: 48 V DC, 24 V DC
• Rated Current:
  • Typically supports up to 12 A (Configurable for specific needs)
• Protection Functions:
  • Overcurrent (OC)
  • Earth Fault Protection (EF)
  • Differential Protection (87)
  • Overvoltage (OV)
  • Undervoltage (UV)
  • Directional Overcurrent (DOC)
  • Transformer Protection (87T)
  • Motor Protection (53, 49)
  • Distance Protection (21)
• Input/Output (I/O):
  • 16 Digital Inputs (Configurable)
  • 16 Digital Outputs (Configurable)
  • 8 Analog Inputs
  • 4 Analog Outputs
  • 2 Programmable Logic Inputs
• Communication Interfaces:
  • Ethernet: IEC 61850 (GOOSE, MMS)
  • Serial Communication: IEC 60870-5-103, Modbus RTU, DNP3
  • Optional: Fiber Optic (for long-distance communication)
• Protection and Control:
  • Multi-phase protection (3-phase, single-phase)
  • Recloser functions (automatic reclose)
  • Time-delayed protection
  • Fault recording and event logging (with time-stamped events)
  • Adaptive protection schemes (e.g., load-dependent)
• Environmental Conditions:
  • Operating Temperature: -20°C to +60°C
  • Storage Temperature: -40°C to +85°C
  • Humidity: 5% to 95% non-condensing
• Power Supply:
  • Nominal DC Voltage: 110V or 220V
  • Power Consumption: 15W typical (depends on configuration)
• Size/Weight:
  • Standard 19-inch rack mountable
  • Dimensions: 19 x 3U (Width x Height)
  • Weight: Approx. 2.5 kg (depends on configuration)

Product Use:

The RET670 is commonly used in the following applications:

1. Transformer Protection:
   It provides essential protection against faults such as overload, short circuits, and differential faults, ensuring safe and reliable operation of transformers.
2. Busbar Protection:
   For high-voltage substations, the RET670 can protect against busbar faults, ensuring system integrity in complex power networks.
3. Motor Protection:
   It provides comprehensive motor protection, including overcurrent, undercurrent, and thermal overload protections, helping prevent motor failure.
4. Distribution Networks:
   The RET670 is designed to protect and control critical components in electrical distribution systems, offering features like automatic reclosing and fault isolation.
5. Generator Protection:
   It can be used for generator protection, safeguarding against a variety of fault conditions.
6. Network Monitoring and Control:
   With advanced communication capabilities, the RET670 is ideal for integration into SCADA and other network monitoring systems, providing real-time data and control.
7. Industrial Applications:
   It is suitable for industries with critical electrical loads, ensuring uninterrupted operations by providing protection for various electrical equipment.
8. Substation Automation:
   It is well-suited for integration into a substation automation architecture, where it can provide control and monitoring, as well as data logging for fault analysis.