GE MIFIIPI55E10HI00: Advanced Feeder Protection & Control Relay for Power Distribution Systems

The GE MIFIIPI55E10HI00 is a high-performance feeder protection and control relay from General Electric (GE), designed to support robust monitoring, protection, and control functions for electrical feeder circuits in industrial, utility, and automation applications. It belongs to GE’s Multilin MIF II relay family, which is well-known for enhancing system reliability, safety, and visibility in medium-voltage distribution networks.

What Is the GE MIFIIPI55E10HI00?

The MIFIIPI55E10HI00 is a digital feeder protection relay that provides integrated protection, metering, and control for single-phase or three-phase electrical feeders. These devices are widely used in electrical distribution systems to detect faults, initiate protective actions, and communicate status information to supervisory systems such as SCADA or DCS. 

Feeder relays like the MIFIIPI55E10HI00 help monitor current and voltage, detect abnormal conditions (such as overload, short circuit, and ground faults), and manage switching and tripping logic to safeguard equipment and prevent system damage. 

Core Functions and Features

Comprehensive Feeder Protection

The relay performs essential protection tasks, which can include:

• Overcurrent and short-circuit protection

• Ground fault detection

• Phase imbalance and under/overvoltage protection

• Directional fault detection
  These features help prevent equipment damage and ensure safe operation of power feeders. 

Metering and Monitoring Capabilities

The MIFIIPI55E10HI00 can measure key electrical parameters, often including:

• Voltage and current

• Power (kW, kVAR) and energy (kWh)

• Frequency and system status

• Event and waveform logging for diagnostics
  This enables operators to track electrical performance and analyze disturbances in real time.

Communication & Integration

This relay often supports industry-standard communication protocols such as Modbus, DNP3, and IEC 61850, allowing seamless integration into SCADA (Supervisory Control and Data Acquisition) and automation systems. It may include ports such as RS-232 or Ethernet for network connectivity. 

Flexible Installation

The relay is designed for panel or DIN-rail mounting and is engineered to operate reliably in harsh environments with temperatures ranging typically from -40°C to +70°C. 

Technical Specifications 

Typical Applications

The GE MIFIIPI55E10HI00 is widely deployed in:

• Utility substations — feeder protection and control

• Industrial power distribution — motor feeds, feeder circuits

• Renewable energy plants — grid-tie feeder monitoring

• Microgrid and utility automation — real-time protection and communication

• Critical electrical infrastructure — hospitals, data centers, industrial processes
  Its ability to deliver protection, metering, and communication in one device makes it a versatile relay for modern power systems. 

Why It Matters in Today’s Power Networks

Modern electrical distribution systems demand precise protection and real-time monitoring to prevent damage, reduce downtime, and improve safety. The GE MIFIIPI55E10HI00 provides:

• Fast and accurate fault detection

• Integrated control logic and communication

• Compatibility with automation and grid management systems

By consolidating protection, metering, and communications into one module, it helps engineers and operators maintain resilient and efficient power networks. 

Conclusion

The GE MIFIIPI55E10HI00 digital feeder protection relay is a robust and versatile component of GE’s Multilin protection family. With its comprehensive protection functions, metering capabilities, communications support, and industrial-grade design, it plays a crucial role in power distribution systems across utility, industrial, and critical infrastructure sectors.