GE SR745-W2-P1-G1-HI-A-L-R-E MULTILIN CASE TRANSFORMER MANAGEMENT RELAY | SR745-CASE

GE SR745-W2-P1-G1-HI-A-L-R-E MULTILIN CASE TRANSFORMER MANAGEMENT RELAY is a high-performance transformer management relay produced by General Electric. This product belongs to the GE Multilin series and is designed for the protection and management of power transformers.

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Product Introduction

GE SR745-W2-P1-G1-HI-ALRE MULTILIN CASE Transformer Management Relay | SR745-CASE.SR745: Transformer Management RelayTM, Number of Windings per Phase: W2 = 2 Windings, Phase Current Input Rating: P1 = 1A:

GE SR745-W2-P1-G1-HI-ALRE MULTILIN CASE Transformer Management Relay | SR745-CASE.png

GE SR745-W2-P1-G1-HI-ALRE Integration and Communications: Includes analog inputs and outputs for easy integration with a Distributed Control System (DCS) or Supervisory Control and Data Acquisition (SCADA) system. Use of the SR745-CASE is simplified by providing tools for monitoring, maintenance, and integration with external systems.

The GE Multilin SR745-W2-P1-G1-HI-ALRE Case Transformer Management Relay is a legacy product designed for high-speed draw transformer protection and management. It is suitable for small, medium and large power transformers, including transformers with double and triple bobbin configurations. The relay uses a variety of current and voltage inputs to provide comprehensive protection, including differential, ground differential phase, neutral and ground overcurrent, overground and load tap changer protection. It also has specific adjustments for industrial environments, such as pull-out housing to minimize long time during maintenance, and conformal coating for statistical conditions. The 745 relay supports input simulation and output, and combines advanced features such as maximum loss loss monitoring.

Model: SR745-W2-P1-G1-HI-A-L-R-E
Type: Transformer Protection Relay
Brand: General Electric (GE)

Main functions and features:
Multiple protection functions: including overload protection, short circuit protection, differential protection and excitation inrush protection, ensuring that the transformer is protected from damage by various faults.
Accuracy: Provides 2% accuracy for reliable fault detection and protection.
Working environment: Suitable for operating temperature of -25°C to +50°C and storage temperature of -40°C to +85°C, relative humidity less than 95% (non-condensing).
Protection level: IP20, providing appropriate protection capabilities.
Product parameters:
Rated voltage: 380 V three-phase four-wire
Rated frequency: 50 Hz
Transformer capacity: 80 kVA to 1000 kVA
Dimensions and weight:
Dimensions: 220 mm x 180 mm x 100 mm
Weight: 2 kg

High-speed and multi-processor architecture: The relay adopts a high-speed, multi-processor architecture to effectively monitor and respond to physical and electronic variables such as temperature, harmonics and overexcitation.

Wide applicability: Suitable for small, medium and large power transformers to meet the needs of systems of different sizes.

Advanced protection functions: It has a variety of protection functions, including overload protection, short-circuit protection and grounding protection, etc., to ensure the safe and stable operation of the transformer system.

Data Logging and Trending: The included software program, Enervista 745, monitors, logs and displays trends for system variables such as temperature, voltage, power, energy consumption and rate of change of frequency. The Enervista 745 software program can also be used to edit set points.

Harsh Chemical Environment Conformal Coating
The "-H" option indicates that the relay has a harsh chemical environment conformal coating, which can operate in harsh environments, increasing the durability and reliability of the product.

Enhanced Display and Larger LCD
The T option features an enhanced display, larger LCD and 10Base-T Ethernet, providing users with more intuitive data display and more convenient connection methods.

Quick Connect Feature
GE Multilin's Quick Connect feature makes connecting the relay to a computer simple, and the connection can be established through Ethernet, the RS232 port on the front, or the RS485/RS422 port on the back of the panel. The program assists in managing system settings and automatically flags programming errors or conflicts when users adjust set points.

 

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