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

Product Overview

The GE Multilin 745-W2-P5-G5-HI is a robust and highly configurable Transformer Protection Relay designed to extend transformer life and enhance operational efficiency. Developed by GE Multilin (now under GE Vernova / GE Grid Solutions), this model provides comprehensive protection, monitoring, and control features for medium to large power transformers.

With built-in capabilities like overload protection, overexcitation blocking, restricted ground fault protection, and over/underfrequency protection, the 745-W2-P5-G5-HI is ideal for critical grid infrastructure and industrial applications. It supports EnerVista 745 software integration for seamless configuration and monitoring.

Technical Specifications

Key Features

• Comprehensive Transformer Protection
  Includes features such as:

• Overload protection

• Overexcitation blocking

• Overfrequency and underfrequency protection

• Restricted ground fault detection

• System Monitoring & Automation
  Capable of monitoring real-time temperature, current, and other system variables, and responding accordingly.

• Redundant Control Power Support
  Accepts a wide control voltage range (DC and AC) for high flexibility and reliability.

• User-Friendly Configuration Options
  Includes 16 logic inputs and numerous communication ports for flexible system integration.

Communication Interfaces

Front Panel:

• RS232 Port
  For direct PC connection (ideal for configuring or monitoring a single relay).

Rear Panel:

• RS485 / RS422 Ports
  Best suited for multi-relay system monitoring and data gathering.

• Ethernet (Optional)
  Available only on models with a “T” in the part number. Allows for nondirect remote monitoring and control.

Note: The 745-W2-P5-G5-HI does not include Ethernet by default. For Ethernet functionality, choose a model with “T” in the model number.

EnerVista 745 Software Integration

With the EnerVista 745 software, users can:

• Connect to the relay via supported communication ports

• Easily configure and edit setpoints

• Monitor real-time measurements

• View event records and perform data trending for diagnostics and performance optimization

EnerVista simplifies relay setup compared to manual keypad programming and provides a graphical interface for comprehensive transformer system monitoring.