REF611 ABB - Feeder Protection and Control

Technical Specifications for REF611

Dimensions

• Width:
  • Frame: 177 mm
  • Case: 164 mm
• Height:
  • Frame: 177 mm (4U)
  • Case: 160 mm
• Depth: 201 mm (153 + 48 mm)
• Weight:
  • Complete protection relay: 4.1 kg
  • Plug-in unit only: 2.1 kg

Power Supply

• Nominal Auxiliary Voltage:
  • Type 1: 100, 110, 120, 220, 240 V AC (50 and 60 Hz)
  • Type 2: 24, 30, 48, 60 V DC; 48, 60, 110, 125, 220, 250 V DC
• Maximum Interruption Time in Auxiliary DC Voltage: 50 ms at Un
• Auxiliary Voltage Variation:
  • Type 1: 38...110% of Un (38...264 V AC)
  • Type 2: 50...120% of Un (12...72 V DC); 80...120% of Un (38.4...300 V DC)
• Start-up Threshold: 19.2 V DC (24 V DC × 80%)
• Burden of Auxiliary Voltage Supply:
  • Type 1 (DC): <12.5 W (nominal)/<15.0 W (max.)
  • Type 1 (AC): <13.5 W (nominal)/<16.0 W (max.)
  • Type 2 (DC): <10.2 W (nominal)/<10.8 W (max.)
• Ripple in the DC Auxiliary Voltage: Max 15% of the DC value (at frequency of 100 Hz)
• Fuse Type: T4A/250 V

Energizing Inputs

• Rated Frequency: 50/60 Hz
• Current Inputs:
  • Rated current (In): 0.2/1 A or 1/5 A
  • Thermal Withstand Capability:
    • Continuously: 4 A or 20 A
    • For 1 s: 100 A or 500 A
  • Dynamic Current Withstand:
    • Half-wave value: 250 A or 1250 A
  • Input Impedance: <100 mΩ or <20 mΩ
• Residual Voltage Input:
  • Rated Voltage: 60...210 V AC
  • Voltage Withstand:
    • Continuous: 240 V AC
    • For 10 s: 360 V AC
  • Burden at Rated Voltage: <0.05 VA

Binary Inputs

• Operating Range: ±20% of the rated voltage
• Rated Voltage: 24...250 V DC
• Current Drain: 1.6...1.9 mA
• Power Consumption: 31.0...570.0 mW
• Threshold Voltage: 16...176 V DC
• Reaction Time: <3 ms

Signal Outputs

• Rated Voltage: 250 V AC/DC
• Continuous Contact Carry: 5 A
• Make and Carry:
  • For 3.0 s: 15 A
  • For 0.5 s: 30 A
• Breaking Capacity (Control-circuit time constant L/R<40 ms):
  • 48/110/220 V DC: 1 A/0.25 A/0.15 A
• Minimum Contact Load:
  • 100 mA at 24 V AC/DC
  • 10 mA at 5 V AC/DC (Signal Outputs and IRF Output)

Communication Protocols

• Supported Protocols: IEC 61850, Modbus RTU/ASCII, Modbus TCP/IP
• Interfaces:
  • Ethernet: 100BASE-TX (RJ-45), 100BASE-FX (LC)
  • Serial: RS-485
• Redundancy Protocols: HSR, PRP, RSTP