ALSTOM 029.144.456 MiCOM P144 Feeder Protection Relay

Product Brief Description

ALSTOM 029.144.456 is a numerical feeder protection relay within the MiCOM P144 series, engineered for medium voltage distribution feeders. It integrates multi-functional protection, electrical measurement, local control and fault event recording. This relay detects power system abnormalities and executes rapid tripping to protect feeders and equipment, widely used in power substations and industrial power distribution systems. We supply fully inspected surplus and refurbished units for power system maintenance and emergency spare replacement.

Product Features

• Directional and non-directional overcurrent protection plus sensitive earth fault protection for feeder circuits
• Overvoltage, undervoltage protection and multi-shot auto-reclosing function with synchronism check
• Built-in disturbance recorder and event logger for capturing fault waveform and historical operation records
• Supports standard communication protocols including Modbus RTU, DNP3, IEC 60870-5-103 and IEC 61850
• Front LCD display and keypad for on-site parameter configuration, real-time status viewing and fault inquiry
• Designed to IEC 60255 and IEEE standards, high resistance to electromagnetic interference for substation environments
• Refurbished relays pass protection logic test, signal injection calibration and full functional inspection before shipment

Application Scenarios

• Medium voltage distribution feeders in utility and industrial substations
• Internal power supply systems for petrochemical, mining and large manufacturing plants
• Substation automation protection & monitoring control units
• Grid connection protection for solar and wind renewable energy stations
• Preventive maintenance, relay replacement and spare parts inventory backup for power facilities

FAQ