Description
- Model: SR745-W2-P5-G5-HI
- Brand: General Electric (GE)
- Series: Multilin SR745 Transformer Protection Relay Series
- Core Function: Provides full protection and monitoring for power transformers
- Type: Digital Transformer Protection & Management Relay
- Key Specs: 70–265VAC/90–300VDC power, Modbus communication, 5A winding input
- Supply Status: In stock
- Stock: Available
- Warranty: 1 year
- Ship From: China
SR745-W2-P5-G5-HI
Product System Overview
The GE SR745-W2-P5-G5-HI is a high-performance digital transformer protection relay developed by General Electric under the classic Multilin SR745 product lineup. Specially engineered for power grid and industrial power distribution systems, this intelligent relay serves as the core safety protection and operational monitoring unit for various power transformers, autotransformers and reactors. It can operate independently or integrate seamlessly with SCADA, DCS and power management systems to build a complete transformer safety monitoring solution. Combining multi-dimensional protection logic, high-precision electrical metering and real-time status diagnosis in one compact device, it replaces multiple discrete protection components and simplifies power system configuration. Widely validated in utility power stations, industrial power distribution rooms and new energy power plants, it is an ideal solution for transformer system upgrading, aging relay replacement and power grid safety optimization projects.
Core Product Functions
This professional transformer protection relay undertakes comprehensive fault protection, operational monitoring and data management tasks for power transformer equipment. It supports core protection functions including transformer differential protection, overload protection, overexcitation protection, ground fault protection and phase unbalance protection, covering almost all common transformer electrical faults. Equipped with dynamic CT ratio mismatch correction technology, it effectively eliminates protection errors caused by current transformer parameter deviation and ensures accurate fault judgment. The device realizes high-precision real-time metering of voltage, current, power and other electrical parameters, and records event logs and fault waveforms for post-fault analysis. It also supports customized protection curve setting and threshold adjustment, adapting to different transformer capacity and operating characteristics, and provides reliable early warning and trip protection for safe transformer operation.
Product Features & Technical Advantages
The GE SR745-W2-P5-G5-HI transformer protection relay features highly integrated functions, outstanding measurement accuracy and excellent industrial reliability, meeting strict long-term operation requirements of power system equipment. Adopting advanced digital signal processing technology, it delivers fast fault response speed and high protection sensitivity, effectively avoiding transformer burnout and power grid accidents caused by delayed protection action. Supporting standard Modbus communication protocol, it enables stable data interconnection and remote parameter debugging with upper industrial platforms, realizing intelligent remote monitoring. Equipped with a 40-character high-definition display and physical operation keypad, it supports intuitive on-site parameter setting and status viewing with simple operation procedures. The industrial-grade rugged structure features strong electromagnetic interference resistance and wide voltage adaptability, stably coping with complex power grid operating environments. The standardized panel mounting design simplifies installation and maintenance, effectively reducing system debugging cycle and operational maintenance costs.
Industrial Application Scenarios
This high-reliability transformer protection relay is widely deployed in key power system scenarios requiring high-standard transformer safety management. It is mainly applicable to municipal utility power grids, thermal power plants, wind and solar new energy power stations, petrochemical industrial power distribution systems and large manufacturing power supply projects. It provides full-cycle safety protection, operational monitoring and fault diagnosis services for distribution transformers, step-up transformers and reactor equipment. As a core functional device of the GE Multilin power protection system, it effectively reduces transformer failure rates and unplanned power outage losses, improves the overall operational safety and stability of power distribution systems, and guarantees continuous and reliable power supply for industrial production and municipal power grid operation.
