GE Multilin 745-W2-P5-G5-HI-E Transformer Protection Relay

Overview

The GE Multilin 745-W2-P5-G5-HI-E is a high-performance transformer protection relay. It belongs to the Multilin SR745 series, designed for industrial and utility power systems. The relay supports two windings per phase, providing flexible protection for complex transformer configurations. Its high control power capability ensures reliable operation in demanding environments. Users benefit from advanced features, including Loss of Life Assessment and an enhanced display screen for clear, actionable insights.

Technical Specifications

Model Code: 745-W2-P5-G5-HI-E
Transformer Configuration: Two windings per phase
Ground Current Input Rating: Winding 1/2 = 5 A, Winding 2/3 = 5 A (G5 option)
Control Power Supply: 90–300 VDC / 70–265 VAC @ 48–62 Hz (HI option)
Operating Temperature: -40°F to +140°F (-40°C to +60°C)
Storage Temperature: -40°F to +176°F (-40°C to +80°C)
Humidity Tolerance: Up to 90% non-condensing
Communication Ports: RS232 (front), RS485/RS422 (rear), optional Ethernet (not included)
Digital Inputs: 16 programmable logic inputs
Analog Outputs: 7 sensor channels (programmable 4–20 mA, 0–20 mA)
Frequency: 50 or 60 Hz
Features: Loss of Life Assessment, Enhanced Display Screen
Manufacturer: GE Multilin, GE Vernova, or GE Grid Solutions
Manual: 745 Instruction Manual 1601-0161-A7
Dimensions: 8.5 in x 10.0 in x 9.5 in (21.6 cm x 25.4 cm x 24.1 cm)
Weight: 7.5 kg