GE Multilin 745-W2-P5-G5-HI-A-R-E Transformer Protection System

SKU 745-W2-P5-G5-HI-A-R-E

In stock

12-month warranty
Free returns within 30 days

Manufacturer: General Electric
Product No.: 745-W2-P5-G5-HI-A-R-E
Country of origin:United States
Product Type: Feeder Management Relay
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 8500g
Dimensions: 220 mm x 275 mm x 300 mm (W x H x D)
Shipping port: Xiamen
Warranty: 12 months

Description

The GE Multilin 745-W2-P5-G5-HI-A-R-E is a micro-processor based three-winding transformer protection relay designed for the primary protection and management of power transformers. This device provides high-speed differential protection, extensive current, voltage, and frequency monitoring, as well as integrated programmable logic capabilities. Equipped with comprehensive analog inputs/outputs and enhanced communication infrastructure including a 10Base-T Ethernet interface, the GE Multilin 745-W2-P5-G5-HI-A-R-E ensures seamless integration into modern substation automation networks and industrial SCADA systems. It supports complex transformer configurations with automated restraint and zero-sequence component removal.

Features

Three-winding transformer differential protection capability
High-speed dual-slope percentage differential protection with harmonic restraint
Enhanced communication interface supporting 10Base-T Ethernet, RS485, and RS422
Integrated analog I/O expansion package featuring 4 analog inputs and 8 analog outputs
Advanced programmable logic using FlexLogic for custom control schemes
Enhanced user interface with a 40-character vacuum fluorescent display and 22 status LEDs
Comprehensive event recording, oscillography, and data logging functions

Applications

Primary and backup protection of three-winding power transformers
Substation automation and industrial power distribution monitoring
Harmonic analysis and transformer winding temperature emulation
Utility intertie protection and control schemes

Ordering Information

Base Model: 745 (Transformer Protection System)
Winding Setup: W2 (Three-Wound Transformer)
Phase Current Input: P5 (5 A)
Ground Current Input: G5 (5 A)
Control Power: HI (90 to 300 VDC / 70 to 265 VAC @ 45 to 66 Hz)
Analog I/O: A (4 Analog Inputs / 8 Analog Outputs)
Communications: R (Enhanced Comm: Rear RS485 / Rear RS422 / Front RS232 & 10Base-T Ethernet)
Display: E (Enhanced Display: 40-character LCD, 22 LEDs)

Technical Specifications

Parameter	Specification
Manufacturer	GE Multilin
Main Function	Three-Winding Transformer Protection and Management
Phase Current Input	5 A
Ground Current Input	5 A
Control Voltage (HI)	90 to 300 VDC, 70 to 265 VAC @ 45 to 66 Hz
Frequency Range	45 to 66 Hz
Analog Inputs	4 Channels (0 to 1 mA, 0 to 20 mA, or 4 to 20 mA)
Analog Outputs	8 Channels (0 to 1 mA, 0 to 20 mA, or 4 to 20 mA)
Communications	Front RS232, Rear RS485/RS422, 10Base-T Ethernet
Protocols	Modbus RTU, DNP 3.0 Level 2, Modbus TCP/IP

Installation Guidelines

Panel Mounting: Mount the unit firmly into a standard cutout on a switchgear panel to minimize mechanical stress and vibration.
Grounding: Establish a dedicated low-impedance ground connection to the rear terminal ground busbar to mitigate EMI/RFI interference.
Current Transformer Connections: Ensure correct polarity alignment on all phase and ground CT inputs prior to energization.
Thermal Management: Leave sufficient clearance around the cooling vents at the rear of the unit to ensure natural convective ventilation.

Compliance and Certifications

UL listed (USA and Canada)
ISO9001:2000 Quality Management System

FAQ

What configuration of transformer does this unit protect?

The device is specifically built to protect and manage three-winding power transformers, configured via the W2 option code.

What are the electrical ratings for the HI control power supply?

The high-voltage power option operates within a range of 90 to 300 VDC, or 70 to 265 VAC at a frequency of 45 to 66 Hz.

Does this model support network connectivity?

Yes, the device features the enhanced communication option, which includes a dedicated rear 10Base-T Ethernet port supporting Modbus TCP/IP and DNP 3.0.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

General Electric GE Multilin SR745-W2-P5-G5-HI-A-R-E

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Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Color pattern	Blue
Country of origin	United States