Description

ABB 3BHE030579R0003 – UNITROL 1020 Digital Generator Excitation Controller

Product Overview

3BHE030579R0003 is a compact digital automatic voltage regulator within the ABB UNITROL 1020 excitation series. It adjusts generator rotor excitation current dynamically to stabilize terminal voltage and manage reactive power output during grid load fluctuations. Equipped with comprehensive protection and fault‑recording functions, this controller guarantees generator compliance with modern grid‑code requirements for distributed power assets.

Technical Specifications

• Brand: ABB
• Model: 3BHE030579R0003
• Warranty: One Year
• Condition: 100% New & Original
• Communication: Modbus RTU (RS‑485)
• Operating Temp: ‑25 °C ~ +70 °C
• Max Excitation Current: 40 A short‑time overload
• Mounting: Cabinet panel mounting

Application Scenarios

• Marine Vessel Power Plant: Synchronous generator voltage regulation for shipboard power systems
• Cogeneration Facility: Excitation control for small‑to‑medium industrial power generators
• Hydro‑Electric Mini‑Power Station: Compact AVR unit for distributed hydropower units