Product Description

The GE Multilin 269PLUS-D/O-210-100P-HI is a sophisticated microprocessor-based motor management relay from GE Multilin (now GE Vernova), part of the proven 269 Plus platform designed for comprehensive protection of three-phase AC industrial motors . This drawout-style digital relay integrates advanced thermal modeling, RTD temperature monitoring, and extensive protection functions into a single field-programmable package, offering a complete protection solution for medium and large motors and their driven mechanical systems .

Application Scenarios

Consider a large petrochemical facility where a critical 2,000 HP induced-draft fan motor powers the plant’s main exhaust system. The facility had been struggling with the limitations of traditional thermal overload relays that could not accurately account for the motor’s unique thermal characteristics during varying loads. The maintenance team deployed the GE Multilin 269PLUS-D/O-210-100P-HI, and the results were transformative. The relay’s ability to “learn” the motor’s specific thermal parameters—including inrush current, cool-down rates, and negative sequence K factor—enabled it to build an accurate thermal model that other relays could not match . When a slight rotor imbalance caused elevated negative sequence currents, the GE Multilin 269PLUS-D/O-210-100P-HI detected the issue and issued an alarm before the motor could overheat. The relay’s 10 Pt100 RTD inputs continuously monitor stator winding and bearing temperatures, providing real-time thermal capacity data that prevents costly motor burnout . This installation reduced unexpected motor trips by over 60% and extended the motor’s operational life through precise, adaptive protection.

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