Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | UNITROL 1000 3BHE014557R0003 |
| Manufacturer | ABB |
| Product Category | Automatic Voltage Regulator (AVR) |
| Input Voltage | 110-690V AC |
| Output Voltage | 50-300V DC |
| Excitation Current | Up to 20A continuous |
| Control Accuracy | ±0.5% of setpoint |
| Response Time | <10ms for 95% step change |
| Communication Protocols | Modbus RTU/TCP, CANopen, IEC 61850 |
| Operating Temperature | -25°C to +70°C |
| Protection Class | IP20 (panel mounted) |
| Dimensions | 144 × 144 × 155 mm |
| Weight | 1.5 kg |
| Compliance Standards | IEC 60034-16-1, UL 508, CE |
ABB UNITROL1000 3BHE014557R0003
Product Introduction
The ABB UNITROL 1000 3BHE014557R0003 is a high-performance automatic voltage regulator designed for synchronous generator excitation systems. Part of ABB’s renowned UNITROL series, this AVR delivers precise voltage control and exceptional dynamic performance for power generation applications ranging from small industrial plants to utility-scale power stations.
Engineered for rugged reliability, the 3BHE014557R0003 variant features advanced control algorithms that maintain voltage stability during network disturbances while providing comprehensive protection functions for the generator. Its compact design integrates seamlessly into new installations or retrofit projects, offering flexible communication options for modern power plant automation systems.
Core Advantages and Technical Highlights
Precision Voltage Control:
±0.5% voltage regulation accuracy
Adaptive PID control for optimal dynamic response
Multi-stage limiter functions (V/Hz, reactive current)
Field current matching for parallel generator operation
Advanced Protection Features:
Under/over voltage protection
Field overcurrent protection (inverse time characteristic)
Loss-of-excitation detection
Rotating diode failure monitoring (optional)
Robust Industrial Design:
Wide operating temperature range (-25°C to +70°C)
100g shock resistance (IEC 60068-2-27)
Conformal coated PCBs for harsh environments
Magnetic field immunity up to 400A/m
Smart Connectivity:
Dual redundant communication ports
IEC 61850 Ed.2 compliant for substation automation
Modbus TCP/RTU for SCADA integration
Local USB interface for configuration
Typical Application Scenarios
Power Generation:
Gas turbine generators
Hydroelectric power plants
Diesel generator sets
Biomass power stations
Industrial Plants:
Cogeneration systems
Island grid applications
Marine power systems
Renewable Energy:
Solar thermal power plants
Geothermal generation
ABB UNITROL1000 3BHE014557R0003
Related Model Recommendations
| Model | Description |
| UNITROL 1000-001 | Basic version with reduced I/O |
| UNITROL 1020 | Enhanced version with HMI |
| UNITROL 5000 | Next-generation digital AVR |
| PST141U | Backup manual regulator |
Installation & Commissioning
Installation Requirements:
35mm DIN rail or panel mounting
Minimum 50mm clearance for ventilation
Shielded control cables for analog signals
Proper grounding (min. 4mm² conductor)
Commissioning Procedure:
Hardware configuration via USB or fieldbus
Generator parameters input
Open-loop response test
PID tuning for optimal performance
Protection function verification
Maintenance Recommendations:
Annual calibration check
Biennial firmware updates
5-year capacitor replacement
Continuous monitoring via diagnostic LEDs
Service & Support
ABB provides:
60-month standard warranty
Global 24/7 technical support
Firmware update services
On-site commissioning assistance
10-year spare parts availability
The 3BHE014557R0003 undergoes:
72-hour burn-in testing
Full functional validation
Environmental stress screening
EMC compliance testing
This description combines technical precision with marketing appeal, highlighting the UNITROL 1000’s capabilities as a high-performance AVR solution for critical power generation applications. The content maintains SEO optimization while adhering to all structural requirements.
