Product Short Description
Function Characteristics
- High-Integrity Control Power: 50-300 VDC / 40-265 VAC wide-range power input ensures stable operation across global industrial power systems.
- 12 RTD Temperature Monitoring: 12 built-in RTD inputs directly measure motor winding, bearing, and stator temperatures for precise thermal protection and health assessment.
- Comprehensive Protection Suite: Delivers overload (thermal model-based), short circuit, ground fault, locked rotor, phase loss/unbalance, undervoltage, overvoltage, underfrequency, and breaker failure protection to cover all critical motor fault scenarios.
- Advanced Metering Capabilities: Optional metering package provides detailed electrical parameter measurement for performance analysis, energy management, and predictive maintenance.
- Enhanced Diagnostics: Offers event recorder (stores up to 200 fault events with time stamps), oscillography (waveform capture at 128 samples per cycle), and motor starting data logger for in-depth troubleshooting and root-cause identification.
- Flexible I/O Configuration: 8 digital inputs and 6 Form-C output relays, customizable to match specific application requirements for control and alarm functions.
- Seamless System Integration: Isolated RS-485 (Modbus RTU) and RS-232 ports support integration with SCADA, DCS, and other industrial control systems for centralized monitoring and control.
- Robust Environmental Tolerance: Operates reliably in extreme temperature ranges (-40°C to +70°C) and withstands vibration, dust, and humidity common in industrial environments.
Description
Product Introduction
This relay is engineered to protect and manage industrial motors by integrating 12 built-in RTD inputs for direct temperature monitoring, an optional metering package for detailed electrical parameter measurement, and a wide-range control power supply. It uses advanced microprocessor technology to deliver full-spectrum protection against electrical and thermal faults, alongside enhanced diagnostics for motor health assessment. The relay supports seamless integration with motor control centers and automation systems via standard communication ports, maximizing motor uptime, reducing maintenance costs, and ensuring safe, efficient operation in harsh industrial environments. It combines precise fault detection, real-time performance monitoring, and actionable data logging to optimize motor operation and extend service life.
Technical Specifications
| Specification | Details |
|---|---|
| Series | GE Multilin 369 Motor Management Relay |
| Product Type | High-Integrity Motor Management Relay |
| Control Power Supply | HI: 50-300 VDC / 40-265 VAC (50/60 Hz), 20 VA nominal power |
| RTD Inputs | R: 12 built-in RTD inputs (supports 100Ω platinum, 100Ω nickel, 120Ω nickel, 10Ω copper) |
| Metering Package | M: Optional metering package included (measures V, kW, kvar, kVA, PF, Hz, kWh, MWh) |
| Fiber Optic Port | 0: No optional fiber optic port |
| Protocol Interfaces | 0: No optional protocol interfaces beyond standard ports |
| Phase Current Inputs | 5 A nominal (CT-connected); supports 1 A CT with configuration |
| Ground Current Input | 5 A nominal (dedicated ground CT input); frequency range 20-100 Hz |
| Voltage Input | Up to 600 V AC (line voltage monitoring for phase-related protection) |
| Operating Frequency | 50/60 Hz (global power system compatibility) |
| Digital Inputs | 8 programmable digital inputs for external control/interlock signals |
| Output Relays | 6 Form-C contacts, rated 5 A at 250 V AC and 0.5 A at 30 V DC |
| Communication Interfaces | Isolated RS-485 (Modbus RTU), non-isolated RS-232 port for local configuration |
| Operating Temperature | -40°C to +70°C (harsh industrial environment tolerance) |
| Storage Temperature | -40°C to +85°C |
| Enclosure Protection | Front panel IP30; NEMA 1/IP20 when mounted in MCC |
| Dimensions (H x W x D) | 296 mm x 107 mm x 205 mm |
| Weight | 4.5 kg (approximate) |
| Accuracy | Overload trip accuracy ±1% of displayed value; current measurement accuracy ±0.2% of full scale |
| Certifications | UL, CSA, CE compliant; meets IEC 61850 communication standards |
Application Scenarios
- Industrial Motor Control Centers (MCCs): Protects and manages motors driving pumps, fans, compressors, conveyors, and mixers in manufacturing plants, ensuring continuous production and reducing downtime.
- Oil and Gas Industry: Safeguards motors in pipeline compressors, wellhead pumps, and refinery process equipment, adapting to high-temperature and remote operating environments.
- Power Generation Facilities: Protects auxiliary motors in thermal, hydro, and nuclear power plants, such as boiler feed pumps, cooling tower fans, and condensate pumps, supporting reliable power generation.
- Water and Wastewater Treatment Plants: Shields motors in aerators, sludge pumps, and filtration systems, with robust protection against overloads and phase-related faults in corrosive and humid environments.
- Mining and Heavy Industry: Protects motors in crushers, grinders, and material-handling systems, withstanding vibration, dust, and extreme temperatures common in mining operations.
- Chemical Processing: Ensures motor reliability in agitators, reactors, and transfer pumps, supporting continuous production with precise fault detection and protection.
- HVAC Systems: Manages large-capacity motors in commercial and industrial heating, ventilation, and air-conditioning systems, optimizing energy efficiency and preventing costly breakdowns.
Additional Information
- Configuration Software: Compatible with GE Multilin EnerVista 369 software for remote configuration, real-time monitoring, and data logging.
- User Manual: Official user manual (GEK-106613C) provides detailed installation, configuration, and troubleshooting guidelines.
- Warranty: 12-month standard warranty, with extended warranty options available for critical applications.
- Replacement Compatibility: Directly replaces older 369 series relays, with backward-compatible wiring and programming for seamless upgrades.
- Maintenance Requirements: Minimal maintenance; annual calibration of current inputs and software updates recommended to maintain optimal performance.
- Environmental Compliance: Meets pollution degree II, overvoltage category II requirements for safe and reliable operation.
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