369-HI-R-0-0-0-0-E | High Impedance Differential Protection Relay

Technical Specifications

Key Features and Advantages

The 369-HI-R-0-0-0-0-E provides ultra-sensitive differential protection with 0.5% measurement accuracy, preventing equipment damage through rapid fault detection. Its adaptive harmonic restraint algorithm effectively distinguishes between internal faults and inrush currents.

369-HI-R-M-0-0-0-E

Cyber-secure operation: Features hardware-based encryption for IEC 61850 communications and role-based access control. The relay’s dual redundant power supply (85-265V AC/DC) ensures continuous protection during voltage fluctuations.

Configuration flexibility: Offers 6 programmable logic inputs and 4 Form-C output relays. The full-color LCD interface displays real-time phasor diagrams and event records, while front USB port enables offline settings management.

Application Areas

The 369-HI-R-0-0-0-0-E is essential in power transformer protection for substations, providing stabilized operation during geomagnetic disturbances. Its high-speed operation (≤15ms) safeguards critical assets in oil & gas refinery power distribution systems.

In industrial plants, this relay protects large motors (>5MW) from phase-to-phase faults and ground faults. Renewable energy applications utilize its CT saturation detection feature in wind turbine step-up transformer protection.

Data center power systems benefit from its arc flash reduction capabilities through instantaneous differential current measurement, complying with NFPA 70E safety standards.

Related Products

369-HI-R-0-0-0-0: Base model without Ethernet communication
GE UR F35: Feeder protection relay for distribution networks
GE C70: Transmission line protection system
GE EPM 9900: Power quality meter for energy monitoring
GE RTD-8: Resistance temperature detector for transformer winding

Installation and Maintenance

Installation preparation: Verify CT circuit continuity before energizing the 369-HI-R-0-0-0-0-E. Use shielded twisted pair cables for all analog inputs, maintaining ≥10cm separation from power cables. Ground the relay chassis directly to station earth grid.

Maintenance recommendations: Perform annual contact resistance tests on output relays. Use GE Enervista 369 software for automated settings verification. Replace the internal RTC battery (CR2032) every 5 years to preserve event logs.

Product Assurance

The 369-HI-R-0-0-0-0-E undergoes 72-hour burn-in testing and IEC 60255-26 compliant EMI immunity tests. GE’s warranty includes free firmware updates and access to protective coordination studies. 24/7 technical support provides <2-hour response for priority customers with GE Service Agreements.