Description

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　　 369-HI-R-M-0-E-0-0  Other Names:

Relay Protection Device 369-HI-R-M-0-E-0-0

369-HI-R-M-0-E-0-0 Voltage Protection Device

Input/Output Protection Device 369-HI-R-M-0-E-0-0

　　Technical Specifications and Core Functions

　　Core Parameters:

Electrical Performance:

Power Supply Range: 90-300V DC/70-265V AC, Power Consumption ≤50W, Supports Wide Voltage Input (±15% Fluctuation), Adaptable to Industrial Power Fluctuation Environments.

Dynamic Response: Step response time ≤10ms, Control accuracy ±0.1%, Supports 50/60Hz nominal frequency switching.

Environmental adaptability: Operating temperature -40°C to +60°C, storage temperature -40°C to +80°C, IP56 protection rating, certified with sulfur corrosion resistant conformal coating (IEC 721-3-3 1994 environmental class 3C2).

　　Hardware design:

Structural dimensions: Approximately 150×100×30mm, aluminum alloy housing, supports DIN rail or panel mounting.

Display and operation: 40-character LCD display, extended keypad, LED status indicators, supports manual parameter input and fault warning.

Certification standards: CE, UL/cUL, IEC61508 SIL-2, compliant with explosion-proof (ATEX/IECEx) and classification society certification requirements.

The GE Multilin 745 series transformer management relays are designed specifically for power transformers. They integrate a multi-processor architecture (≥1GHz) and support three-phase/two-winding/three-winding transformer protection, conforming to ANSI C37.90, IEEE C37.2, and NEMA SG-3 standards.

　　Protection Functions:

Combined differential protection, overcurrent protection, frequency protection, overexcitation protection, and harmonic monitoring (THD analysis), supporting adaptive CT ratio correction and dynamic logic allocation (FlexLogic™).

Built-in self-test function, real-time monitoring of processor, memory, and communication status, recording fault history, and supporting IRIG-B time synchronization.

Protection Functions: Combined percentage differential protection (error ≤ ±3%), adaptive harmonic suppression (single harmonic filtering accuracy ±1%), overexcitation protection (supports custom V/Hz curve), overcurrent protection (inverse time characteristic), frequency protection (50/60Hz adaptive), and total harmonic distortion (THD) monitoring.

Intelligent Features: FlexLogic™ logic allocation, dynamic CT ratio correction, multi-setpoint group switching, waveform capture and playback, automatic CT connection configuration (Y-type eliminates special requirements).

Communication Capabilities: Integrated IEC 61850, Modbus TCP/RTU, and DNP3 protocols; supports dual redundant Ethernet links; compatible with EnerVista 745 configuration software for remote debugging and data management.

　　Application Scenarios and Industry Adaptation

　　Typical Applications:

Power Industry: Differential protection for transformers and generator sets; grid fault isolation and synchronization monitoring; compatible with ABB and Siemens system integration.

Industrial Scenarios: Oil and gas compressor control; water treatment pump station motor protection; metallurgical rolling mill speed synchronization; meets deployment requirements in explosion-proof areas (ATEX/IECEx).

Special Environments: Offshore platforms, high/low temperature industrial scenarios, areas with high electromagnetic interference; supports salt spray resistance and vibration resistance design.

　　Performance Advantages:

High Reliability: MTBF ≥ 100,000 hours, compliant with IEC61508 SIL-2 safety certification, supports TMR architecture to reduce the risk of malfunctions.

Flexibility: Modular design supports functional expansion (such as adding I/O channels, communication modules), adapting to different protection requirements.

Maintenance: EnerVista software supports remote diagnostics, waveform playback, and parameter configuration, reducing downtime and maintenance costs.

Typical Case: After application at an oil refinery, downtime was reduced by 70%, and fault isolation time was shortened to milliseconds.

　　Installation and Maintenance Recommendations

　　Installation Specifications:

Mount the sensor on a DIN rail or metal plate, ensuring good grounding to avoid electromagnetic interference; the sensor installation position must be precisely aligned with the monitoring point.

Power lines must be independently wired, avoiding sharing lines with high-voltage equipment to prevent voltage fluctuations from affecting control accuracy.

　　Maintenance Requirements:

Regularly calibrate the sensor and check the connection lines and interface status; clean the module surface to avoid oil and dust affecting heat dissipation.

Back up historical data to an SD card or cloud for trend analysis and fault tracing; functional testing is recommended every six months.

Wear an anti-static wrist strap during operation and avoid leaving unterminated channels idle (voltage input needs to be jumpered to 0.5V, current input terminal connected to a shunt).

　　Summary

The GE  369-HI-R-M-0-E-0-0 transformer protection relay is a core device for industrial transformer protection, integrating high-precision protection, intelligent diagnostics, redundant communication, and environmental adaptability. It is suitable for scenarios with extremely high system stability requirements, such as power, petrochemical, and metallurgy industries. Its modular design, strong scalability, and industry adaptability make it a key solution for industrial safety protection.

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