GE 345 | Transformer Protection System
The 345 is a microprocessor-based system for primary and backup protection of low and medium voltage power transformers. The 345 offers advanced algorithms for automatic magnitude and phase compensations for more than twenty types of two winding transformers, fast and secure biased differential protection with dual slope, dual breakpoint characteristic.
Applications
- Low and medium voltage two winding power transformers
- Reactors and autotransformers
- Applications requiring fast and secure communications
- Harsh environments requiring protection against corrosion and humidity
Key Benefits
- Proven and secure high-speed protection system for power transformers
- Integrated transformer thermal monitoring for asset management maintenance optimization
- Improved transformer energization inhibiting
- Ground current supervised sensitive ground fault protection for detection of ground faults down to 5% of the winding limiting the transformer damage
- Assignable CT inputs provide flexibility of usage through all timed and instantaneous over-current protections
- Powerful communication capabilities allowing seamless integration into most communication architectures
- Easy access to information via multiple communication networks including USB, Serial, Fiber or copper Ethernet
- Small footprint easy on new installations or retrofits
- Simplified transformer and protection setup right from the main menu Quick Setup feature. Fast and easy menu navigation
- Draw out and non draw out options available
Functional Block Diagram
