Description
GE Multilin 369-HI-0-M-0-0-0
Overview
The GE Multilin 369-HI-0-M-0-0-0 is a specialized protective relay and control device designed for medium-voltage power systems. Engineered to ensure reliable operation in electrical distribution networks, this model integrates advanced protection, monitoring, and communication functions, serving as a critical component for fault detection, circuit protection, and system control in industrial and utility applications.
Functional Features
- Comprehensive Protection Functions
- Supports multiple protection elements including overcurrent, under/overvoltage, distance protection, and directional overcurrent.
- Integrates automatic reclosing, breaker failure detection, and transformer differential protection for comprehensive system safeguarding.
- Configurable time-current characteristics enable precise coordination with upstream/downstream devices.
- Real-time Monitoring & Data Acquisition
- Measures and records electrical parameters (voltage, current, power, frequency) with high accuracy.
- Captures fault waveforms and event logs for post-fault analysis, supporting extensive event records.
- Provides real-time status indication via front-panel interfaces.
- Flexible Communication Interfaces
- Equipped with serial ports (RS-232/485) and Ethernet for seamless SCADA integration.
- Supports industry-standard protocols (Modbus, IEC 61850, DNP3) for remote control and data exchange.
Technical Parameters
| Category | Specifications |
|---|---|
| Rated Voltage | [e.g., 110-250V DC, 100-240V AC] |
| Current Inputs | [e.g., 5A or 1A CT secondary, 0.5% accuracy] |
| Communication | RS-485, Ethernet (10/100BaseT), supports IEC 61850/GOOSE |
| Protection Elements | Overcurrent (51), Earth fault (50N), Undervoltage (27), Overvoltage (59), etc. |
| Environmental | Operating temp: -25°C to +70°C; Humidity: 5%–95% RH (non-condensing) |
Working Principle
- Protection Logic
The relay monitors electrical parameters via CT/VT inputs. When values exceed preset thresholds (e.g., overcurrent), it triggers trip outputs to isolate faults, prioritizing precise fault isolation while minimizing system impact. - Data Processing
Analog signals are converted by ADCs, processed by a microprocessor, and packaged into protocol-compliant frames for transmission to supervisory systems, enabling remote monitoring.
Operation Guide
- Installation
- Verify voltage/current ratings and mount in a 19-inch rack, ensuring proper grounding to minimize EMI.
- Connect CT/VT inputs, power, and communication cables per wiring diagrams.
- Configuration
- Use front-panel HMI or PC software to set protection parameters, CT/VT ratios, and communication protocols.
- Troubleshooting
- Check power connections and fuse status for boot failures.
- Review protection settings and wiring for false tripping or communication issues.
