ALSTOM 029.144.440 MiCOM P144 Feeder Protection Relay

Product Brief Description

ALSTOM 029.144.440 is a numerical feeder protection relay of MiCOM P144 series, designed for power distribution and sub-transmission feeders. It integrates protection, measurement, control and fault recording functions. This relay quickly isolates power system faults to guarantee grid safety and stability, widely deployed in substations and industrial power systems. We supply fully inspected surplus and refurbished units for power system maintenance and emergency replacement.

Product Features

• Three-phase directional & non-directional overcurrent protection plus sensitive directional earth fault protection
• Under-voltage and over-voltage protection, 4-shot auto-reclosing with voltage supervision and synchronism check
• Built-in fault disturbance recorder, capable of storing up to 100 event records for post-fault analysis
• Multiple communication protocols: IEC 61850, Modbus RTU, DNP3 and IEC 60870-5-103
• Front panel graphical LCD and keypad for local parameter configuration and status monitoring
• Compliant with IEC 60255 and IEEE C37.90 standards, robust for substation harsh environment
• Refurbished relays pass protection logic test, communication calibration and full functional verification before shipment

Application Scenarios

• High/medium voltage distribution feeders in utility power substations
• On-site power supply systems for mining, petrochemical and large manufacturing plants
• Substation automation system protection and monitoring units
• Renewable energy station grid-connected feeder protection control
• Preventive maintenance, relay replacement and spare parts inventory backup for power facilities

FAQ