GE Multilin
Factory Authorized Distributor

Buy GE Multilin 469

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• Call 1-866-725-3771 or
• 713-222-9191 in Houston, TX
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Reference Material

• SR 469 Motor Protection System Brochure

Monitoring & Metering

The GE Multilin SR 469 includes high accuracy metering and recording for all AC signals. Voltage,current, RTD and power metering are built into the relay as a standard feature.

Metering

The following system values are accurately metered and displayed: Phase, differential and ground currents, average current, motor load, current unbalance. Phase-to-ground and Phase-to-phase voltages, average phase voltage, system frequency. Real, reactive, apparent power, power factor, watthours, varhours, torque Current and power demand. Analog inputs and RTD temperatures. Thermal capacity used, lockout times, motor speed

GE Multilin 469 Motor Protection System

SR469 Motor Management Relay Complete Integrated Protection & Management of Medium & Large Motors

The 469 Motor Protection System provides control, configuration, protection, and advanced communications in an inexpensive industry leading draw-out construction.

Additionally, The SR469 provides simplified configuration using the Auto-Configurator Motor Settings and delivers protection with single CT differential protection and customizable overload curves for added flexibility. The 469 provides users the flexibility of a variety of communication protocols which allow easy integration into new and existing control networks.

Motor Protection System Features

• Complete motor protection plus voltage dependant overload curves, broken rotor bar protection, and torque metering
• Advanced thermal model - Includes multiple RTD inputs for stator thermal protection
• Advanced monitoring functions vibration via DC mA Analog inputs, and stator, bearing and ambient temperature via RTD inputs
• Best in class man machine interface (MMI) - Large backlit display with 40 characters to view relay information and settings in direct sunlight, full numerical keypad, and setpoint navigation keys
• Minimize replacement time - Draw-out construction
• Complete asset monitoring - Temperature, Analog I/O, full metering including demand & energy
• Improve uptime of auxiliary equipment - Through I/O monitoring
• Reduce troubleshooting time and maintenance costs - Event reports, waveform capture, data logger
• Simplify testing - Unique built in simulation features
• Cost effective Access to information - Via Modbus RTU protocol, through standard RS232 & RS485 serial ports, optional Modbus over TCP/IP through embedded Ethernet Port or optional DeviceNet over embedded DeviceNet port
• Best in class environmental protection when exposed to chemically corrosive and humid environments with optional harsh environment conformal coating

Motor Protection System Applications

• Protection and Management of three phase medium and large horsepower motors and driven equipment, including high inertia, two speed and reduced-voltage start motors

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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.

Features & Benefits

• Thermal model biased with RTD and negative sequence current feedback
• Start supervision and inhibit
• Mechanical jam
• Voltage compensated acceleration
• Undervoltage, overvoltage
• Underfrequency
• Stator differential protection
• Thermal overload
• Overtemperature protection
• Phase and ground overcurrent
• Current unbalance
• Power elements
• Torque protection
• Dual overload curves for 2 speed motors
• Reduced voltage starting control