GE Multilin 369 Motor Management Protection Relay

Feature & Principle

It is GE Multilin classic motor protection relay. It samples three-phase current and voltage signals in real time, executes overload, locked rotor, phase unbalance, earth fault, undercurrent, over/undervoltage protection. This configuration includes RTD temperature monitoring, backspin detection function, fiber communication interface and enhanced diagnostic package. It supports user-defined FlexCurve thermal overload curve, built-in event recorder and oscillography. It communicates with SCADA via Modbus TCP, Profibus or fiber link. The series is last-time-buy, used as maintenance spare for old motor control cabinets.

Specifications

Model: 369-HI-R-B-F-P-0-E Brand: GE Multilin Series: 369 Motor Management Relay Control power: HI range 40~265VAC / 50~300VDC RTD: 12 channels RTD input Options: RTD package, backspin detection, fiber communication, enhanced diagnostics Protection: Overload, locked rotor, current unbalance, earth fault, loss of load, phase reversal Communication: Modbus TCP, Profibus-DP, fiber optical port Mounting: Panel mounting Display: LCD local HMI with keypad Application: Large pump, induced draft fan, crusher, compressor motor protection Certification: CE, UL

Components & Diagnostics

CPU main board, CT/PT analog acquisition module, RTD acquisition circuit, communication module, power supply unit, front HMI panel. Common faults: RTD channel drift, communication link interruption, protection misoperation, HMI display failure, power supply alarm.

Product Brief

369-HI-R-B-F-P-0-E motor management relay, GE Multilin obsolete motor protection IED spare widely used for petrochemical and power plant MCC cabinet overhaul and replacement.