750-P1-G1-S1-HI-A20-R | GE Feeder Relay for Power Systems

Description / Overview

The GE Multilin 750-P1-G1-S1-HI-A20-R-E is a high-performance feeder management relay designed by GE Vernova / GE Multilin for reliable protection and control of electrical distribution feeders. As part of the Multilin 750/760 series, it delivers advanced protection, metering, and automation functions to enhance feeder reliability and operational visibility.

This relay offers 5 A CT inputs, wide-range 90–300 VDC or 70–265 VAC control power, and 4–20 mA analog outputs for seamless integration into SCADA and DCS systems. The 40-character LCD display provides instant access to system parameters such as voltage, current, frequency, power demand, and breaker maintenance statistics.

Designed for industrial and utility networks, the 750 series combines intelligent diagnostics, fault recording, and advanced communication capabilities. It supports Modbus RTU/TCP, DNP3, and IEC 61850, ensuring smooth interoperability in modern digital substations.

Technical Specifications

Model Number: 750-P1-G1-S1-HI-A20-R-E
Manufacturer: GE Vernova / GE Multilin
Series: Multilin 750
Product Type: Feeder Management Relay
Phase CT Input: 5 A secondaries
Control Power: 90–300 VDC or 70–265 VAC @ 48–62 Hz
Analog Outputs: 4–20 mA
Display: 40-character LCD
Protection Functions: Overcurrent, ground fault, phase imbalance, breaker failure
Metering Functions: Voltage, frequency, watthour cost, load-to-trip %, demand tracking
Communication Protocols: Modbus RTU/TCP, DNP3, IEC 61850
Interfaces: RS485, Ethernet, USB
Mounting Type: Panel-mounted
Operating Temperature: –40°C to +70°C
Humidity Range: 5% to 95% non-condensing
Weight: 1.4 kg
Country of Origin: USA

FAQ

Q1: What is the main function of the GE Multilin 750 relay?
A1: It provides feeder protection, metering, and control for electrical distribution systems.

Q2: Can it communicate with SCADA or DCS systems?
A2: Yes, it supports Modbus RTU/TCP, DNP3, and IEC 61850 for full integration.

Q3: What display features does the device include?
A3: The 40-character LCD display shows real-time voltage, frequency, and load-to-trip data.

Q4: Is the relay suitable for harsh operating environments?
A4: Absolutely. It is designed for –40°C to +70°C operation with 95% humidity tolerance.