ABB 3BHE035301R0410 UNS0121 A-Z,V1 voltage regulators modules

Product Description
Unit Series: UNITROL 1010 Compact Digital Automatic Voltage Regulator (AVR / Excitation Controller)
Hardware Order Number: 3BHE035301R0410
Firmware Version Identifier: UNS0121 A-Z, V1
Manufacturer: ABB (ABB Power Excitation Product Line, Switzerland)
Equipment Type: Core Module for Synchronous Generator Excitation and Voltage Regulation

Core Electrical Parameters
Generator Side Input
Terminal Sampling Voltage: 100~690V AC, 50/60Hz (universal)
Excitation Output (Magnetic Side)
Excitation DC Voltage: 10~250V DC
Power Topology: IGBT Full Bridge Rectifier Power Loop
Regulation Performance
Voltage Steady State Accuracy: ±0.5%
Dynamic Response Time: <30ms
Standby Power Consumption: ≤25W
Environment and Structure
Operating Temperature: -10℃ ~ +50℃ (wide temperature range models can reach -40~+70℃)
Humidity: ≤95% RH, no condensation
Installation: Cabinet rails / Panel embedded installation
Weight: Approximately 2.8kg; Compact industrial enclosure
Power Supply and Communication
Auxiliary Power Supply: 110/220V AC ±15% or 24VDC ±20% dual compatibility power supply
Communication Protocol: Modbus RTU, Ethernet, Profibus, supports IEC61850 power protocol
I/O Points: Multiple 4–20mA Analog, 16 Switch Inputs, 12 Relay Switch Outputs

Control and Protection Functions
Control Mode
Automatic Voltage Regulation (AVR), Manual Excitation Current Adjustment Dual Mode One-Click Switching
Supports Reactive Power Regulation, Parallel Unit Load Sharing, Grid Synchronization Logic
Built-in Protection Logic
Excitation Current Upper and Lower Limit Limitation
V/Hz (Volt-Hertz) Over Flux Limitation
Rotating Diode Fault Monitoring
Overcurrent, Overheating, Loss of Pulse, Power Loss Fault Lockout
256 Fault Event Log Storage, Convenient for Traceability and Troubleshooting

Applicable Generator Power Range
Standard Adaptation for Maximum 50MW Internal Synchronous Generators:
Small Thermal Power Turbine Units
Hydroelectric Generators
Diesel / Gas Standalone Power Plant Generators
Wind Power, Biomass Distributed Energy Units

Application Industry Scenarios
Power: Small-scale Power Plants, Distributed Power Stations, Grid-connected Standalone Units
Industry: Metallurgy, Chemicals, Mining Standalone Power Stations
Special Power: Ship Power Stations, Diesel Locomotives, Offshore Drilling Platform Generators
Critical Load: Data Centers, Hospitals Uninterruptible Standby Power Units