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

Technical Specifications

Product Overview

The 745-W2-P5-G5-HI is an advanced transformer protection relay designed to safeguard transformer systems, extend their operational life, and optimize performance. This version supports high control power input (90 to 300 V DC; 70 to 265 V AC), offering enhanced flexibility for various industrial environments.

Key Features

• Protection Functions:

• Overexcitation blocking

• Overfrequency and underfrequency protection

• Restricted ground fault protection

• System overload protection

• Monitoring Capabilities:

• Tracks system variables such as temperature and current

• Responds dynamically to changing conditions

• I/O and Connectivity:

• Sixteen logic inputs

• Multiple ports on the rear terminal panel

• Can operate as a stand-alone device or as part of a larger system

Communication Interfaces

• RS232 Port:

• Located on the front panel

• Ideal for direct connection to a single computer for monitoring

• RS485/RS422 Ports:

• Located on the rear panel

• Suitable for monitoring multiple relays directly

• Ethernet (Optional):

• Available on models with “T” in the model number

• Supports networked (non-direct) connections

Software Integration

Users can connect to the relay using EnerVista 745 software, which enables:

• Monitoring and control of relay parameters

• Editing of setpoints more efficiently than manual keypad entry

• Viewing and trending transformer system measurements for detailed analysis