GE SR745-W2-P5-G5-HI is a high-speed transformer protection relay produced by General Electric(GE),which belongs to the 745 transformer protection system series.The following is a detailed introduction to the product:

1.Product Overview

The GE SR745-W2-P5-G5-HI is designed to provide high-speed transformer management functions,with a built-in multi-processor to support the protection and management of dual-winding or three-winding transformers.The relay has comprehensive protection functions to ensure the safe operation of the transformer under various working conditions.

2.Main Features

Multi-function protection:Provides overexcitation protection,overcurrent protection,percentage differential function,etc.,and can monitor single harmonics and total harmonic distortion(THD).These functions help to promptly detect and deal with possible faults or abnormal conditions of the transformer.

High reliability:The use of advanced electronic technology and reliable mechanical structure ensures stable operation under high load and harsh environment.This helps to extend the service life of the transformer and reduce downtime caused by faults.

Easy maintenance:The product design fully considers the convenience of maintenance,such as the optical components are not in contact with water,which reduces the workload of cleaning and maintenance.At the same time,the relay has easily accessible ports and connection options,which are convenient for users to configure and monitor.

Highly configurable:With multiple logic inputs and an array of expansion ports,users can flexibly configure according to actual needs.In addition,through the EnerVista 745 software program,users can easily set and modify set points,read system values​​and status,etc.

Wide applicability:Suitable for large,medium and small transformer systems,meeting the protection needs of power systems of different sizes.This makes GE SR745-W2-P5-G5-HI have a wide range of application prospects in the fields of power,energy,industrial manufacturing,etc.

III.Technical indicators

Rated voltage:Typically 380V±10%,three-phase four-wire.

Ambient temperature:The operating temperature is-40°C to+60°C(the storage temperature range is wider).

Relative humidity:The working environment humidity can reach 90%(no condensation).

Frequency:Nominal 50 or 60 Hz.

Control power range:Accepts control power input of 90 to 300V DC or 70 to 265V AC.

4.Connection and Configuration

The GE SR745-W2-P5-G5-HI has multiple ports that support inbound and outbound connections.These include:

RS422/485 port:for continuous monitoring of multiple relays.

RS232 port:allows users to connect to a computer running EnerVista 745 for quick and easy configuration and monitoring.

Ethernet port(optional):suitable for indirect connection to the relay,convenient for users to monitor and manage remotely.

The EnerVista 745 software program allows users to easily set and modify set points,read system values​​and status,perform waveform capture and data digitization,etc.The program also includes a quick connect function that seamlessly connects a computer running EnerVista to the SR745-W2-P5-G5-HI relay.

 

5.Application Fields

GE SR745-W2-P5-G5-HI is widely used in places that require high reliability and stability of power supply,such as metallurgy,oil and gas,petrochemical,chemical industry,paper printing,textile printing and dyeing,machinery manufacturing,electronics manufacturing,automobile manufacturing and other industries.These industries have extremely high requirements for the stability and safety of the power system,and GE SR745-W2-P5-G5-HI is designed to meet these needs.

 

The company mainly imports PLC modules,programmable controllers,servo control systems and DCS spare parts,such as:ABB,AB(Rockwell),GE(General Electric),Bentley,Honeywell Er),Emerson.),Motorola,Invensys,Westinghouse,etc.The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers.We can purchase goods directly from abroad and provide equipment and spare parts from different countries and manufacturers.

We supply goods directly from abroad,without intermediaries,reducing the cost of use.

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