Description
The ABB UFC719AE01 3BHB003041R0101 / 3BHB000272R0001 is a high-precision excitation controller engineered for large synchronous generators and motors in critical power applications. As part of ABB’s PESD (Power Electronic Switching Devices) series, this dual-channel system regulates field current with ±0.25% accuracy to maintain grid voltage stability during load swings, faults, or black-start scenarios. The ABB UFC719AE01 integrates adaptive PID control, power system stabilizer (PSS) functions, and SIL 3-certified protection logic (over-excitation/under-excitation limiters) to prevent generator damage. Its redundant architecture features hot-standby processor synchronization and automatic channel switchover (<20>

ABB UFC719AE01 3BHB003041R0101 3BHB000272R0001
Technical Specifications
| Parameter | Value |
| Product Model | UFC719AE01 (3BHB003041R0101 / 3BHB000272R0001) |
| Manufacturer | ABB |
| Product Type | Dual-Channel Excitation Controller |
| Field Voltage | 50–500 V DC (thyristor-controlled) |
| Field Current | 500–6000 A DC (configurable) |
| Accuracy | ±0.25% of setpoint |
| Response Time | <50> |
| Protection Functions | Over/Under Excitation (OEL/UEL), V/Hz Limiter, Loss-of-Field (40) |
| Communication | IEC 61850-8-1, Modbus TCP, DNP3.0 |
| Redundancy | Hot standby (1+1) with auto-failover |
| Auxiliary Supply | 110–240 V AC/DC dual-redundant |
| Operating Temperature | –40°C to +70°C |
| Cooling | Liquid/air (IP42 enclosure) |
| Certifications | SIL 3, IEEE 421.4, IEC 60034-16 |
| Dimensions | 600 x 800 x 220 mm (HxWxD) |
Main Features and Advantages
Adaptive grid support:
Power System Stabilizer (PSS): Dampens low-frequency oscillations using multi-band control algorithms
VAR/PF control modes: Seamless transitions between voltage regulation and reactive power dispatch
Fault-tolerant architecture:
Dual ARM Cortex-R5 processors execute parallel diagnostics with <100>
Thyristor firing pulse validation prevents misfiring during transients
Cyber-secure operation:
Hardware-enforced secure boot (IEC 62443-4-1)
Encrypted IEC 61850 GOOSE messaging for protection coordination
Advanced diagnostics:
Real-time thyristor health monitoring (junction temp, aging prediction)
Disturbance recorder captures 120 cycles pre/post-event at 10 kHz sampling
Applicati
The ABB UFC719AE01 excels in mission-critical excitation control:
Power Generation: Black-start capability for 500 MW+ steam turbines and hydro generators
Industrial Plants: Synchronous motor control for LNG compressors and steel mill drives
Renewables: Grid-forming control for battery-backed solar/wind farms
Marine: Diesel-electric propulsion system excitation for ice-class vessels
Mining: Sag mill motor field regulation during ore hardness variations
Related Products
UFCR711A: Redundant voltage regulator for UFC719AE01 integration
UFCX008: Thyristor bridge cabinet (3000 A)
PESD880: HMI control panel with mimic diagrams
UFC760BE101: I/O extension module
3BHE037864R0101: Field flashing unit
UFCX007: Surge protection module for field windings
MACH Control System: Supervisory platform for excitation coordination

ABB UFC719AE01 3BHB003041R0101 3BHB000272R0001
Installation and Maintenance
Pre-installation preparation: Validate generator field winding insulation resistance (>100 MΩ). Calibrate CT/VT inputs to ±0.1%. Configure redundant fiber-optic links between controllers and thyristor cabinets. Ground all panels to <0> Maintenance recommendations: Perform annual thyristor junction temperature calibration. Test channel failover via simulated processor faults quarterly. Update firmware using cryptographically signed files only. Replace cooling fans every 5 years in high-dust environments.



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