ALSTOM 029.202.781 Numerical Generator Protection Relay

Product Brief Description

ALSTOM 029.202.781 is a high-performance numerical generator protection relay from MiCOM series, built for small and medium synchronous generators. It integrates comprehensive generator protection, electrical measurement, control and fault recording functions. This relay monitors generator operating conditions continuously and triggers rapid tripping to isolate faults, protecting generators against stator, rotor and grid-side abnormal conditions. We supply fully inspected surplus and refurbished units for power plant maintenance and emergency spare replacement.

Product Features

• Stator phase fault, earth fault, negative sequence overcurrent, loss of excitation and reverse power protection for synchronous generators
• Overvoltage, undervoltage, overfrequency, underfrequency protection plus generator out-of-step detection
• Built-in disturbance recorder and high-precision event logger for waveform capture and fault sequence analysis
• Multiple communication protocols including IEC 61850, Modbus RTU, DNP3 and IEC 60870-5-103 for SCADA connection
• Front LCD display and keypad for local parameter setting, real-time electrical value viewing and fault history query
• Complies with IEC 60255 standards, strong EMC anti-interference performance suitable for power plant harsh environment
• Refurbished relays pass protection characteristic test, analog injection calibration and full functional inspection before shipment

Application Scenarios

• Synchronous generator protection for hydropower plants, thermal power plants and gas power stations
• Captive power plant generator units in mining, petrochemical and large industrial parks
• Distributed power generation and CHP combined heat and power generator protection systems
• Substation automation generator monitoring and protection control units
• Preventive maintenance, relay replacement and spare parts inventory backup for power generation facilities

FAQ