GE 369-HI-R-M-0-0 – Motor Management Digital Relay

Technical Specifications

• Manufacturer: GE Multilin (GE Vernova)
• Model: 369-HI-R-M-0-0
• Series: 369 Motor Management Relay
• Motor Compatibility: Medium‑sized three‑phase AC motors
• Control Power: 110–250 VDC, 100–240 VAC (50/60 Hz); nominal 20 VA, max 65 VA
• Phase Current Input: 1 A / 5 A secondary, true RMS, 1.04 ms/sample
• Ground Current Input: 20–100 Hz frequency range
• RTD Inputs: 12 built‑in (supports 100 Ω Pt, 100 Ω Ni, 120 Ω Ni, 10 Ω Cu)
• Metering: Integrated (kW, kvar, kVA, voltage, current, power factor, energy)
• Communication: 1 × RS232 (front), 3 × RS485 (rear); Modbus RTU standard
• Display: 40‑character backlit LCD; keypad for local configuration
• Digital Inputs: 6 optically isolated
• Dimensions (H×W×D): 296 mm × 107 mm × 205 mm (11.5 in × 4.2 in × 8.1 in)
• Weight: 4.5 kg (10 lbs)
• Operating Temperature: −20°C to +60°C (−4°F to 140°F)
• Relative Humidity: 5%–95% (non‑condensing)
• Insulation Class: Class I

Key Features

1. Comprehensive Motor Protection
   • Overcurrent, overload, ground fault, phase loss, undervoltage, overvoltage, and stall protection.
   • Thermal protection via 12 RTD inputs (stator, bearing, winding temperature monitoring).
   • Start inhibition, locked rotor detection, and acceleration monitoring to prevent startup failures.
2. Integrated Precision Metering & Monitoring
   • Real‑time electrical parameter metering (voltage, current, power, energy, power factor).
   • Motor health monitoring: temperature, vibration, and operational trend analysis.
   • True RMS measurement ensures accuracy under distorted load conditions.
3. Advanced Data Logging & Diagnostics
   • Waveform Capture: Records 3 fault waveforms (16 cycles each) for post‑fault analysis.
   • Event Log: Stores up to 512 events (trips, alarms, power failures, self‑tests).
   • Motor Health Reports: Generates performance and maintenance reports based on historical data.
4. Flexible Communication & Integration
   • Multiple serial ports (RS232/RS485) support Modbus RTU for SCADA/DCS integration.
   • Remote configuration and monitoring via EnerVista 369 Setup Software.
   • Programmable logic for custom interlocking and control sequences.
5. Robust Industrial Design
   • Panel‑mounted, rugged enclosure for harsh industrial environments.
   • Wide operating temperature range and high noise immunity.
   • Local LCD/keypad for on‑site operation and troubleshooting.

Application Scenarios

• Oil & Gas: Protects motors for pumps, compressors, fans, and conveyors in refineries, pipelines, and LNG facilities.
• Water & Wastewater: Controls and safeguards motor‑driven pumps, blowers, and aerators in treatment plants.
• Power Generation: Protects auxiliary motors (fans, pumps, conveyors) in thermal, hydro, and combined‑cycle power plants.
• Chemical & Petrochemical: Ensures reliable operation of motors driving reactors, mixers, and processing equipment.
• Manufacturing: Protects motors in machine tools, HVAC systems, and production line conveyors.