GE 745-W2-P5-G5-HI-A-L-R-E-H Transformer Protection Relay

Manufacturer

General Electric (GE Multilin)

Model/Part Number

745-W2-P5-G5-HI-A-L-R-E-H

Description

Advanced transformer protection relay offering high-speed protection, extensive analog I/O, enhanced monitoring, and rugged environmental design.

Key Features

High-speed protection, adaptive harmonic restraint, overexcitation and restricted ground fault protection, analog I/O, transformer aging analysis, enhanced LCD, conformal coating

Model

745-W2-P5-G5-HI-A-L-R-E-H

Product Type

Transformer Protection Relay

Windings per Phase

2 (W2)

Phase Current Input

5 A (P5: for both windings)

Ground Current Input

5 A (G5: for both windings)

Control Power

High (HI): 90–300 VDC / 70–265 VAC, 48–62 Hz

Analog I/O (A)

4 analog outputs (0–1, 0–5, 0–20, 4–20 mA), 7 analog inputs

Loss-of-Life Monitoring (L)

Hottest spot temp, aging factor, accumulated loss-of-life

Restricted Ground Fault (R)

Advanced ground fault detection

Enhanced Display (E)

Large LCD screen with expanded keypad

Conformal Coating (H)

Protective coating for harsh or corrosive environments

Communication Ports

RS232 (front), RS485/RS422 (rear), optional Ethernet

Operating Temperature

-40°C to 60°C (-40°F to 140°F)

Weight

Approx. 4.8 kg (10.6 lbs) with SR-series case

Supported Connections

RS232 (front) for EnerVista 745 software, RS485/RS422 for multi-relay setups, optional Ethernet port

Protection

Percent differential, overcurrent, frequency, overexcitation, restricted ground fault

Monitoring

Transformer overload, THD, harmonics, transformer aging, hottest spot temperature

Software

EnerVista 745 for parameter configuration, data monitoring, waveform capture, and diagnostics

Mounting

Draw-out SR-series case; compatible with standard 19-inch rack

Base Model

745

Configuration

W2: 2 windings/phaseP5: 5 A CTsG5: 5 A ground CTsHI: High control powerA: Analog I/OL: Loss-of-life monitoringR: Restricted ground faultE: Enhanced displayH: Harsh environment coating