GE SR745-W2-P1-G1-HI-A-L-R-E is a protective relay produced by General Electric (GE), specifically designed for comprehensive protection, control, and monitoring of transformers. The following is a detailed introduction to the product:

1、 Product Overview

The GE SR745-W2-P1-G1-HI-A-L-R-E protection relay is an advanced product in the GE Multilin series, designed to provide comprehensive protection for transformers. It combines advanced technology and reliable performance, suitable for various power system environments, especially playing an important role in power plants, substations, and industrial facilities.

2、 Main functions

Transformer overload protection: This relay can monitor the load condition of the transformer, prevent long-term overload operation, and thus avoid damage to the transformer due to overheating.

Differential protection: Provides high-sensitivity differential protection function, which can detect differential current between transformer windings and identify internal faults such as turn to turn short circuits and winding grounding faults.

Overcurrent protection: including instantaneous overcurrent, timed overcurrent, and inverse time overcurrent protection, ensuring rapid disconnection of fault circuits in the event of short circuits and other abnormal currents, protecting transformers from damage.

Temperature monitoring: Equipped with built-in temperature monitoring function, it can monitor the winding and oil temperature of the transformer in real time. When the temperature exceeds the set value, it will issue an alarm or trip signal to prevent the transformer from overheating.

Excitation inrush current identification: By identifying the characteristics of excitation inrush current, it prevents false tripping caused by excitation inrush current and ensures the stability of the transformer during operation.

3、 System capability

Automatic detection and processing: GE SR745-W2-P1-G1-HI-A-L-R-E relay has the ability to automatically detect and process abnormal situations, and can quickly respond and take measures to protect the transformer system.

High precision and high efficiency: Adopting advanced design and technology, this relay has the characteristics of high precision and high efficiency, which can accurately identify faults and quickly cut off faulty circuits.

Remote monitoring and control: Supports multiple communication protocols (such as Modbus, DNP3, IEC 61850, etc.), can exchange data with other protection devices and control systems, and achieve remote monitoring and control functions.

4、 System environment

Normal temperature environment: This relay is suitable for normal temperature environment and can operate stably under standard temperature and humidity conditions.

5、 Product Features

High safety: GE SR745-W2-P1-G1-HI-A-L-R-E relay has a high degree of safety, which can ensure the stable operation of the transformer system under various working conditions.

Strong durability: Using high-quality materials and advanced manufacturing processes, this relay has excellent durability and can operate stably for a long time without frequent maintenance.

Easy to operate and maintain: This relay has a user-friendly interface and easy-to-use features, making it convenient for operators to perform daily maintenance and operations.

6、 Application Fields

GE SR745-W2-P1-G1-HI-A-L-R-E relay is widely used in power, energy, industry and other fields, especially playing an important role in transformer systems that require high-precision and high reliability protection.

7、 Summary

GE SR745-W2-P1-G1-HI-A-L-R-E is a powerful and highly safe protective relay designed specifically for transformers. It combines advanced technology and reliable performance, with multiple protection functions and system capabilities, suitable for various power system environments. Whether in power plants, substations, or industrial facilities, this relay can provide strong support for the stable operation of transformer systems.