ABB UNITROL 1010 VOLTAGE REGULATOR 3BHE03531R0003

Brand: ABB

Product Series: UNITROL 1000 Series / UNITROL 1010

Model: UNITROL 1010 (Part Number: 3BHE035301R0003 / 3BHE035301R0001 / 3BHE035301R0002 Series)

Product Type: Automatic Voltage Regulator (AVR) and Excitation Control Unit

ABB UNITROL 1010 VOLTAGE REGULATOR 3BHE03531R0003

Technical Parameters:

Excitation Output Current: Nominal continuous output current up to 10 A DC (with maximum transient ceiling current capabilities up to 20 A DC for up to 10 seconds during grid faults).

Excitation Output Voltage: Provides high-efficiency pulse-width modulation (PWM) output voltage regulation up to 250 V DC.

Microprocessing Architecture: High-speed digital microprocessor executing real-time control algorithms, closed-loop PID parameters, and protective limiter tracking under 1 millisecond.

Control Loop Modes: Fully programmable for Automatic Voltage Regulation (AVR), Field Current Regulation (FCR), Power Factor Regulation (PF), and Reactive Power Regulation (VAR).

Integrated Limiters: Advanced onboard limiters including Over-Excitation Limiter (OEL), Under-Excitation Limiter (UEL), Stator Current Limiter, Minimum Field Current Limiter, and V/Hz (Volts-per-Hertz) protection.

Communication Interfaces: Integrated multi-protocol connectivity supporting onboard Modbus TCP, Modbus RTU, and CANopen network architectures for smooth PLC/DCS integration.

I/O Configuration: Flexible hardware infrastructure featuring multiple configurable analog inputs/outputs and fast digital inputs/outputs for localized event monitoring and field interlocks.

Synchronization Tracking: Integrated automatic synchronization capabilities with smooth bumpless transfer logic to guarantee seamless transitions between auto and manual operating modes.

Environmental Durability: Rugged compact footprint with conformal-coated electronic assemblies, operating reliably across an ambient temperature range of -25°C to +70°C, and certified for demanding industrial and marine settings.

Industrial Sectors:

Power Generation Utilities (Small Hydroelectric, Biomass, Wind-Diesel Hybrids, and Thermal Plants), Marine Vessels and Offshore Drilling Platforms, Critical Infrastructure Backup Power, and Heavy Industrial Manufacturing Facilities.

Application Scenarios:

1. Small to Medium Synchronous Generator Excitation: Acts as the primary automatic voltage regulator (AVR) for synchronous generators up to approximately 30 MVA, maintaining constant, reliable terminal voltage under varying local load stresses.

2. Marine and Offshore Power Network Stabilization: Installed within the generator control panels of diesel-electric vessels, cargo ships, or offshore rigs to steady independent islanded grids against sudden, massive voltage drops from thruster or winch operations.

3. Synchronous Motor Power Factor Modification: Deployed within massive manufacturing complexes (e.g., cement plants, water pumping stations) to manage high-power synchronous motors, regulating excitation to dynamically optimize the plant’s overall power factor.

4. Critical Co-generation Plant Automation: Integrated into industrial steam or gas turbine co-generation grids to deliver precise grid-code compliance via built-in limiters, protecting local equipment from dangerous over-excitation or underfluxing incidents.