MIFIIPI11E10HI00 | GE Multilin MIF II Digital Feeder Relay

Key Benefits

• Low-Cost, Scalable Options: Event reports, waveform capture, reclosure functionality
• Reduced Troubleshooting & Maintenance Costs: Event reports and waveform capture features streamline diagnostic processes.
• Design Flexibility: User-friendly programming logic for easy customization.
• Asset Monitoring: Monitors breaker health and failure.
• Information Access: Modbus RTU communication for remote monitoring and control.
• Configurable Logic and Parameters: Customizable curves, I/O settings, and LEDs.
• Flash Memory for Field Upgrades: Allows for easy system updates.
• Two Settings Groups: Dual configuration options for different operating scenarios.
• Password Protection: Ensures secure local operation.
• Automatic Fault Information Display: Displays last fault data automatically.
• AC/DC Power Supply: Flexible power options for versatile installations.
• Improved User Interface: Enhanced ease of operation.
• Communication Access: Can be accessed through the front panel or remote communication links.
• EnerVista™ Compatibility: Simplifies system setup and monitoring.
• Isolated Front RS232 Serial Port: Ensures secure and isolated data transmission.

Applications

• Primary Feeder Protection: Ideal for use on distribution networks.
• Backup/Auxiliary Protection: Provides protection for transformers, generators, and motors.

Features

Protection and Control

• Phase and Ground TOC & IOC: Time Overcurrent and Instantaneous Overcurrent protection for both phase and ground faults.
• Thermal Image Protection: Monitors the thermal behavior of the feeder.
• IAC Time-Current Curves: Protection curves tailored to industrial and utility applications.
• Circuit Breaker Control: Includes open and close controls for circuit breakers.
• Four-Shot Autorecloser: Automatically restores the feeder after fault clearing.
• Cold Load Pickup: Helps with re-energization after a feeder has been out of service.
• Configurable Breaker Failure: Offers adjustable settings for breaker failure to open.
• Configurable I/O: Customizable I/O settings for flexible integration into control systems.

Monitoring and Metering

• 32-Event Recorder: Records the latest fault events for analysis.
• Oscillography: Captures analog and digital oscillography for detailed fault analysis.
• KI2 Counter for Breaker Maintenance: Tracks breaker operations for maintenance scheduling.
• Per-Phase Current Metering: Provides individual phase current monitoring.
• Last Five Trips Monitoring: Displays data from the last five trips for troubleshooting.

User Interfaces

• EnerVista™ Software: Industry-leading software for device configuration and monitoring.
• LCD Display: 2×16 character display for real-time data and settings.
• LED Indicators: Six LED indicators, four of which are configurable in function and color.
• Communication Ports: RS232 (front) and RS485 (rear) for local and remote communication.
• Multiple Protocols: ModBus RTU, IEC 60870-5-103 for diverse control system integration.

Technical Specifications

Protection

Phase / Ground Time Overcurrent

• Pickup Level: 0.1 – 2.4 times In (rated current) in steps of 0.01 x In.
• Curve Shapes: IEC (A/B/C), ANSI Inverse, IAC Inverse.
• Timing: Adjustable from 0.00 to 600.00 seconds.
• Accuracy: ±1% at rated current, ±3% in complete range.

Phase / Ground Instantaneous Overcurrent

• Pickup Level: 0.1 to 30 times In, with steps of 0.1 x In.
• Operate Time: 20 to 30 ms for I > 1.5 x Actual Pickup.
• Timing Accuracy: ±3% for I > 1.5 x Actual Pickup.

Thermal Image Element

• Pickup Level: 0.1 to 2.4 times In.
• Timing Accuracy: 5% for operate times greater than 2 seconds.

Communications

• Local Communication: 2×16 LCD Display, 5-button keypad.
• Remote Communication: ModBus RTU, Baud rate: 300 to 19200 bps.
• Ports: RS232 (front), RS485 or IEC 60870-5-103 (rear).

Metering

• Accuracy: ±1% at In, ±3% in the full range.
• Current: Fundamental current measurement for precise monitoring.

Monitoring

• Oscillography: Records 1 x 24 cycles with a sampling rate of 8 samples per power frequency cycle.
• Event Recorder: 32 events with time-tagging to 1 ms.

Inputs and Outputs

AC Current Inputs

• Rated Current: 1A or 5A, depending on the model.
• Relay Burden: < 0.2 VA @ In = 5A secondary.
• Current Withstand: 4 x In continuously, 100 x In for 1 second.

Digital Inputs

• Voltage Level: 300 Vdc max for HI power supply; 75 Vdc max for LO power supply.
• Recognition Time: < 4 ms.

Outputs

• Relay Configuration: 6 Electro-Mechanical Form C.
• Relay Material: Silver alloy suited for inductive loads.
• Contact Ratings: 30 A make and carry, 10 A continuous, breaking 4000 VA.

Power Supply

• Low Range: 24 to 48 Vdc, with a backup time of more than 1 week.
• High Range: 110 to 250 Vdc or 110 to 230 Vac.

Mechanical Characteristics

• Package: 1/4 19” rack, 4 units high.
• Protection: IP52 (according to IEC 529).

Environmental Specifications

• Temperature: Operation: -20ºC to +60ºC; Storage: -40ºC to +80ºC.
• Humidity: Up to 95% without condensation.
• Pollution Degree: 2.

Approvals

• Certifications: Conforms to 89/336/CEE and 73/23/CEE, UL508, ISO9001.

Ordering Information

MIF II-P-I-1-1-E-1-0-HI-0-0 (MIFIIPI11E10HI00)

• Base Unit: MIF
• Application: P (3 Phase + Ground relay)
• Curves: I (IEC Curves)
• Phase Ranges: 1 Phase CT In = 1A (0.1-2.4 A)
• Ground Range: 1 Ground CT = 1 A (0.1-2.4 In)
• Language: E (English)
• Options: 1 (Configurable I/O/LEDs, event recording, oscillography)
• Recloser Option: 0 (Without Recloser)
• Power Supply: HI (110-250 Vdc)
• Protocol: 0 (Standard Model – Modbus RTU)
• Conformal Coating: 0 (Without Harsh Environment Conformal Coating)

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