The SR469 Motor Protection System, a member of the SR family of relays, provides protection, control, simplified configuration and advanced communications in a cost effective industry leading draw-out construction. Designed for medium voltage motors, the 469 delivers advanced protection with customizable overload curves and single CT differential protection for added flexibility. The 469 also provides simplified configuration using the Motor Settings Auto-Configurator, providing a quick and easy set-up of motor parameters. Coupled with advanced protection and diagnostics, the 469 provides users the flexibility of multiple communication protocols allowing integration into new and existing control networks.
Voltage dependant overload curves, torque metering and protection, broken rotor bar protection
Most advanced thermal model - Multiple RTD inputs for stator thermal protection
Minimize replacement time - Draw-out construction
Complete asset monitoring - Temperature, Analog I/O, full metering
Improve uptime of auxiliary equipment - Through I/O monitoring
Reduce troubleshooting time and maintenance costs - Event reports, waveform capture, data logger
Built in simulation functions simplify testing and commissioning
Cost Effective Access to information - Through standard RS232 & RS485 serial ports, and optional Ethernet and DeviceNet Ports
Field upgradable firmware and settings
Optional Conformal coating for exposure
Protection and Management of three phase medium and large horsepower motors and driven equipment, including high inertia, two speed and reduced-voltage start motors
Protection & Control
The 469 is a digital motor protection system designed to protect and manage medium and large motors and driven equipment. It contains a full range of selectively enabled, self contained protection and control elements as detailed in the Functional Block Diagram and Features table.