GE SR745-W2-P5-G5-HI Transformer Protection System – Precision Power Management for Critical Infrastructure
Engineered by GE Energy Management, the SR745-W2-P5-G5-HI Transformer Protection System delivers advanced digital protection for medium to large power transformers. This microprocessor-based relay combines real-time diagnostics with adaptive protection algorithms to prevent catastrophic failures while optimizing transformer lifespan. Designed for industrial power systems, it features integrated metering, communication redundancy, and customizable protection schemes for oil-immersed and dry-type transformers.
Key Features
- Dynamic CT Ratio Mismatch Correction – Automatically compensates for current transformer ratio discrepancies during load variations
- Overexcitation Protection – Monitors V/Hz ratios to prevent core saturation under abnormal voltage/frequency conditions
- 40-Character LCD Display – Provides clear visibility of protection status, fault indicators, and operational parameters
- High-Speed Fault Response – Trips within 80ms for phase faults and 120ms for ground faults
- Modular Communication Options – Supports Modbus RTU/TCP, DNP3, and IEC 61850 protocols for seamless SCADA integration
- Thermal Monitoring – Calculates winding hottest spot temperatures using real-time loading data
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | GE SR745-W2-P5-G5-HI |
| Power Supply | 85-264 VAC, 90-300 VDC |
| Operating Temp | -40°C to +85°C |
| Current Inputs | 5 A nominal, 80× rated overload capacity |
| Communication Ports | 2× Ethernet, 2× RS485, 1× USB |
| Mounting | Rack or panel mount (9″H × 7″W × 7¼”D) |
Application Fields
This protection system is specifically designed for critical power infrastructure including:
- Industrial power distribution networks
- Utility substations and transmission systems
- Renewable energy integration projects
- Oil & gas processing facilities
- Manufacturing plant electrical systems
With its comprehensive protection functions and predictive maintenance capabilities, this device ensures compliance with IEEE C57.12.59 and IEC 60255 standards while reducing unplanned downtime by up to 40%.
Our Featured Brands & Products
As authorized distributor for leading industrial control manufacturers, we offer comprehensive solutions including:
- ABB: DSQC series robot components, PM866 controllers
- Siemens: 6ES7 modules, 6SE70 drives
- Bently Nevada: 3500/44 vibration monitoring systems
- Woodward: 8440-1713 digital governors
- Triconex: 3008 safety system modules
- Emerson: OVATION control system spares
Contact our technical team for application-specific recommendations and global delivery options.
There are no reviews yet.