Overview

The GE Multilin 350-E-P5-G5-H-E-M-N-P-SN-P-N Feeder Protection System is a microprocessor-based relay built to protect, control, and monitor electrical feeders in demanding environments. It supports both primary and backup protection roles, making it suitable for utility substations, industrial power systems, and renewable energy installations.

Moreover, this model includes integrated arc flash protection, advanced metering, and diagnostic capabilities. Its draw-out chassis design simplifies installation and maintenance, while multiple communication protocols—including Modbus, DNP3, and optional Ethernet—enable seamless integration with SCADA and automation platforms. In addition to standard protection features, the relay supports preventative maintenance strategies through event recording and waveform capture.

Therefore, this relay is ideal for facilities requiring high-speed fault detection, flexible control logic, and secure remote access.

Technical Data

Typical Applications

• Utility Substations: Provides primary and backup protection for distribution feeders.

• Industrial Power Systems: Controls and monitors feeders in petrochemical, mining, and manufacturing plants.

• Renewable Energy Sites: Protects feeders in solar and wind farm substations.

• Arc Flash Mitigation: Reduces incident energy and enhances personnel safety.

• SCADA Integration: Supports remote monitoring and control via Modbus, DNP3, and Ethernet.

For instance, in a petrochemical facility, this relay can detect feeder faults and isolate affected circuits within milliseconds. In addition, its event recording features help engineers analyze disturbances and optimize system reliability.

FAQ

Q1: What voltage range does the control power input support?
It supports 90–300 VDC or 70–265 VAC at 48–62 Hz.

Q2: How many digital inputs and outputs are available?
It includes 8 opto-isolated inputs and 6 Form A relay outputs.

Q3: Does it support arc flash protection?
Yes, it includes integrated arc flash mitigation features.

Q4: Can it be used in SCADA systems?
Absolutely—it supports Modbus, DNP3, and optional Ethernet for SCADA integration.

Q5: What industries commonly use this relay?
Industries include utilities, petrochemical, mining, manufacturing, and renewable energy.