Description
GE L90H00HCHF8FH6PL6PNXXSXXUXXW7J
Technical Specifications:
- Brand: General Electric (GE) Multilin
- Model: L90H00HCHF8FH6PL6PNXXSXXUXXW7J
- Product Type: Line Current Differential Protection Relay
- System Compatibility: GE UR Series Platform
Functional Features:
- Ultra-High-Speed Tripping: Provides instantaneous fault detection and clearing for internal line faults using differential current comparison.
- Advanced Pilot Schemes: Supports diverse communication mediums including fiber optics, microwave, and power line carrier for seamless inter-relay communication.
- Integrated Distance Protection: Incorporates robust distance elements as backup protection alongside the primary differential scheme.
Application Scenarios:
Deployed in high-voltage and extra-high-voltage transmission networks, utility substations, and critical industrial power distribution grids.
Performance Parameters:
- Operating Speed: Trip times typically under 2 milliseconds for internal faults.
- Security & Dependability: Exceptional restraint characteristics to prevent false tripping during external faults or CT saturation.
Material Composition:
Housed in a rugged, flame-retardant industrial enclosure featuring high-quality copper busbars, precision current transformers, and gold-plated relay contacts.
Structural Characteristics:
Standard 19-inch rack-mountable horizontal unit featuring an enhanced faceplate with additional user-programmable pushbuttons, LED indicators, and an intuitive LCD display.
Working Principle:
Continuously samples phase currents at both ends of the transmission line. It compares the phasor sum of the currents via a high-speed communication channel; if the sum exceeds a predefined threshold, it identifies an internal fault and issues a trip command.
Installation Requirements:
Must be securely mounted in a standard 19-inch panel. Current transformer (CT) secondary wiring must be correctly polarized, and pilot communication channels must be verified for low latency and synchronization.
Usage Precautions:
Always use the EnerVista UR Setup software for configuration. Ensure CT secondary circuits are never left open while the relay is energized to prevent hazardous high voltages.
