GE MIFIIPI55E10HI00

Product Introduction

The MIFIIPI55E10HI00 is a high-performance feeder management relay from GE Multilin’s MiF II series, engineered for protection, control, monitoring, and diagnostics of medium-voltage feeders in power distribution systems. It combines comprehensive protection functions, precise measurement capabilities, and flexible communication protocols to ensure reliable operation of distribution networks. The relay supports IEC 61850, Modbus RTU, and Profibus DP for seamless integration with SCADA and substation automation systems, and includes advanced features such as auto reclose, fault location, load shedding, and event recording for enhanced network management.
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Description

Technical Specifications

  • Manufacturer: GE Multilin (GE Grid Solutions)
  • Product Series: Multilin MiF II Feeder Management Relays
  • Part Number: MIFIIPI55E10HI00 (MIFII-PI-5-5-E-1-0-HI-0-0)
  • Protection Type: Feeder Protection & Control Relay
  • Rated Current Input: 5 A (secondary of current transformers)
  • Rated Voltage Input: 100 V (phase-phase), 57.7 V (phase-neutral)
  • Power Supply: 110-250 V DC (10 W), 110-230 V AC (10 VA), 50/60 Hz
  • Communication Protocols: IEC 61850, Modbus RTU, Profibus DP, DNP3.0
  • Measurement Accuracy:
    • Current: ±0.2% of rated value
    • Voltage: ±0.2% of rated value
    • Power: ±0.5% of rated value
    • Frequency: ±0.01 Hz
  • Protection Functions: Overcurrent (50/51), Earth Fault (50N/51N), Overvoltage (59), Undervoltage (27), Frequency (81), Reverse Power (32), Thermal Overload (49)
  • Control Functions: Auto Reclose (79), Load Shedding, Fault Locator, Event Recording (up to 1000 events)
  • I/O Configuration: 8 digital inputs, 6 Form C relay outputs (5 A, 250 V AC)
  • Operating Temperature: -25°C to +70°C (-13°F to +158°F)
  • Storage Temperature: -40°C to +85°C (-40°F to +185°F)
  • Humidity Range: 5%–95% non-condensing
  • Enclosure Rating: IP30 (panel-mounted)
  • Dimensions: 144 mm × 144 mm × 200 mm (5.7 in × 5.7 in × 7.9 in)
  • Weight: 1.8 kg (4.0 lb)
  • Display: Backlit LCD (128×64 pixels) with membrane keypad for local operation
  • Certifications: IEC 61850-3, IEC 60255-1, IEEE C37.20.7, ANSI/IEEE C37.90.1

Functional Features

  • Comprehensive Protection Functions: Overcurrent, earth fault, overvoltage, undervoltage, frequency, reverse power, and thermal overload protection for complete feeder coverage.
  • Precise Measurement Capabilities: ±0.2% accuracy for current/voltage, ±0.5% for power, and ±0.01 Hz for frequency to ensure reliable monitoring.
  • Flexible Communication Protocols: IEC 61850, Modbus RTU, Profibus DP, and DNP3.0 for seamless integration with SCADA and substation automation systems.
  • Advanced Control Functions: Auto reclose (up to 4 shots), load shedding, fault locator (±1% accuracy), and event recording (1000 events) for enhanced network management.
  • Modular I/O Configuration: 8 digital inputs and 6 Form C relay outputs for custom control schemes.
  • Local HMI Interface: Backlit LCD and keypad for on-site configuration, data visualization, and diagnostics without additional tools.
  • High Accuracy Fault Location: Calculates fault distance with ±1% accuracy to reduce outage time during troubleshooting.
  • IEC 61850 Compliance: Supports GOOSE messaging and MMS for fast, reliable substation communication.
  • Event Recording: Stores up to 1000 events with time stamping (1 ms resolution) for post-fault analysis.
  • Thermal Overload Protection: Models feeder conductor temperature to prevent overheating and extend equipment life.

Application Scenarios

  • Medium-Voltage Distribution Networks: Protects and controls 10 kV–35 kV feeders in utility distribution systems.
  • Industrial Power Distribution: Feeder protection in manufacturing plants, data centers, and industrial facilities to prevent downtime.
  • Renewable Energy Integration: Manages feeders connecting solar/wind farms to the grid with precise control and monitoring.
  • Remote Substations: Unattended substations requiring remote monitoring and control via IEC 61850/SCADA systems.
  • Critical Infrastructure: Hospitals, airports, and military facilities where reliable power distribution is mission-critical.
  • Smart Grid Applications: Supports advanced grid management with IEC 61850 communication and auto reclose functionality.
  • Retrofit Projects: Upgrades legacy feeder protection systems to modern digital relays without extensive wiring changes.

Compatibility

  • Current Transformers: 5 A secondary (standard), 1 A secondary (optional)
  • Potential Transformers: 100 V (phase-phase), 57.7 V (phase-neutral)
  • Communication Systems: IEC 61850, Modbus RTU, Profibus DP, DNP3.0 (SCADA integration)
  • Software: GE EnerVista™ MiF II Setup Software for configuration, monitoring, and diagnostics
  • Power Supplies: 110-250 V DC / 110-230 V AC industrial power systems
  • Mounting: Panel mounting with standard 144 mm × 144 mm cutout

Installation Notes

  1. Mounting: Install in a panel with 144 mm × 144 mm cutout; ensure 50 mm clearance for airflow and wiring.
  2. Power Connection: Connect 110-250 V DC or 110-230 V AC power supply; verify voltage compatibility before energization.
  3. CT/PT Wiring: Connect current transformers (5 A secondary) and potential transformers (100 V/57.7 V) with shielded cables.
  4. Communication Setup: Configure IEC 61850, Modbus RTU, or Profibus DP parameters via EnerVista™ software.
  5. I/O Configuration: Assign digital inputs and relay outputs for control functions using the local HMI or software.
  6. Protection Settings: Set overcurrent, earth fault, voltage, and frequency thresholds per network coordination requirements.
  7. Event Recording: Enable event recording (1000 events max) and set time synchronization via SNTP server.
  8. Post-Installation Testing: Validate protection functions, measurement accuracy, and communication links before system commissioning.

Key Advantages

  • Comprehensive Protection: Covers all critical feeder protection functions to ensure network reliability.
  • Precise Measurements: ±0.2% current/voltage accuracy for accurate monitoring and control.
  • Flexible Communication: IEC 61850, Modbus RTU, Profibus DP, and DNP3.0 for seamless SCADA integration.
  • Advanced Control Features: Auto reclose, fault locator, and load shedding reduce outage time and improve network efficiency.
  • Local HMI Interface: Backlit LCD and keypad enable on-site operation without additional tools.
  • EnerVista™ Software: Simplifies configuration, monitoring, and diagnostics for efficient relay management.
  • Compact Design: 144 mm × 144 mm panel footprint saves space in control cabinets.
  • Global Certifications: IEC, IEEE, and ANSI compliance for worldwide installation.
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