SR745-W3-P5-G5-LO-A SR745 Transformer Management Relay

Easy to use Transformer Protection supported by industry leading suite of software tools
Improved security for transformer energization
Accurate built-in metering functions
Advanced FlexLogic automation capabilities
Fast, flexible and reliable communications
IRIG-B time synchronization, event reports, waveform capture, data logger

Built in simulation features for setpoint verification
Modbus and DNP 3.0 Level 2 protocols through embedded Ethernet, standard RS232, RS485 & RS422 serial ports.
Optional conformal coating for chemically corrosive and humid environments
Security Audit Trail provides detailed traceability for system configuration changes
Minimize maintenance time with draw-out capability

SR750-P5-G5-S5-HI-A20-R-T

The 745 Transformer Protection System is a full featured transformer protection relay, suitable for application

on small, medium, and large power transformers. The 745 can be applied on two-winding and three-winding

transformers, and can be applied on transformers with breaker-and-a-half source terminals. Multiple current and

voltage inputs are used to provide primary protection, control and back-up protection of transformers, including

current differential, Restricted Ground Fault neutral, and ground overcurrent, over-fluxing, and on-load tap

changer. The 745 also has specific features for industrial environments, including a drawout case to limit downtime

during maintenance and conformal coating for harsh environments. The 745 also includes analog inputs and outputs,

while incorporating advanced features such as transformer loss of life monitoring.