GE 760‑P5‑G5‑S5‑HI‑A20‑R – Multilin 760 Series Feeder Management Relay

Technical Specifications

• Manufacturer: GE Multilin (General Electric)
• Model: 760‑P5‑G5‑S5‑HI‑A20‑R
• Series: Multilin 760 Series (Feeder Management Relays)
• Input Currents: 5 A phase current, 5 A zero‑sequence current, 5 A sensitive ground current
• Power Supply: 88–300 VDC / 70–265 VAC, 48–62 Hz
• Analog Outputs: Eight (8) configurable 4–20 mA outputs
• Communication Interfaces: RS232, RS485, 10Base‑T Ethernet
• Supported Protocols: Modbus RTU, Modbus TCP/IP, DNP 3.0
• Display: Enhanced LCD with 40‑character alphanumeric display; red LED for breaker closed status
• Waveform Capture: 4 current + 3 voltage channels, high‑speed sampling
• Dimensions (W×L×H): 180 mm × 165 mm × 215 mm (18 cm × 16.5 cm × 21.5 cm)
• Weight: 1.0 kg (unit only)
• Operating Temperature: −40°C to +70°C (−40°F to +158°F)
• Storage Temperature: −40°C to +85°C (−40°F to +185°F)
• Relative Humidity: 5%–95% (non‑condensing)
• Certifications: CE, UL, CSA (industrial safety and EMC compliance)

Key Features

1. Comprehensive Protection Functions
   • Provides overcurrent, overvoltage, undervoltage, ground fault, sensitive ground fault, and feeder trip protection.
   • Fast fault response: short‑circuit protection ≤10 ms; other protective functions ≤100 ms.
   • Adjustable protection curves (IEC/ANSI) for coordination with upstream and downstream devices.
2. High‑Precision Monitoring & Metering
   • Real‑time measurement of three‑phase current, line voltage, power factor, active/reactive power, and energy consumption.
   • High accuracy: current ±1%, voltage ±1.5% for reliable operational data.
   • Data logging and fault recording: stores up to 256 fault events with time stamps and waveform data for post‑fault analysis.
3. Flexible & High‑Speed Communication
   • Multiple communication ports (RS232/RS485/Ethernet) support seamless integration with SCADA, DCS, and HMI systems.
   • Modbus RTU/TCP/IP and DNP 3.0 protocols enable remote monitoring, parameter setting, and fault alarming.
   • Ethernet 10Base‑T allows connection to large networks for remote access and control.
4. Robust Industrial Design & Diagnostics
   • Dustproof, compact enclosure for panel mounting in industrial control cabinets.
   • Wide temperature and humidity tolerance ensures stability in extreme power plant and substation environments.
   • On‑board LED indicators and LCD display provide real‑time status (power, communication, faults).
   • Supports remote diagnostics and waveform analysis via GE EnerVista 760 software for proactive maintenance.
5. Configurable Analog Outputs
   • Eight 4–20 mA outputs map measured parameters (current, voltage, power) to external monitoring devices or control systems.
   • Flexible configuration enables customized data distribution for diverse application needs.

Application Scenarios

• Power Distribution & Utilities
  • Medium‑Voltage Feeders: Protects and monitors distribution feeders in substations, ensuring safe and reliable power delivery.
  • Industrial Power Plants: Manages feeder protection for auxiliary systems in thermal, combined‑cycle, and renewable power plants.
  • Renewable Energy: Interfaces with solar/wind farm distribution networks for fault protection and grid monitoring.
• Process Industries
  • Oil & Gas: Protects motor control centers (MCCs) and distribution panels in refineries, pipelines, and LNG facilities.
  • Chemical & Petrochemical: Ensures uninterrupted power supply for critical processes (reactors, distillation columns) with fast fault isolation.
  • Metallurgy & Mining: Manages feeder protection for heavy‑duty motors and conveyors in steel mills and mining operations.
• Industrial Automation & Infrastructure
  • Manufacturing Plants: Provides reliable protection for production lines, HVAC systems, and auxiliary equipment in automotive, food & beverage, and pharmaceutical facilities.
  • Commercial Buildings: Monitors and protects electrical distribution systems in data centers, hospitals, and large‑scale commercial complexes.
  • Distributed Control Systems (DCS): Integrates with plant‑wide DCS for unified power system monitoring, control, and fault management。