ABB 3BHE014557R0003 UN 1000b-Z Voltage Regulator

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1. Product Overview

The Abb Unitrol 1000 Voltage Regulator 3Bhe014557R0003 (model UN1000b‑Z, V3) is an automatic voltage regulator (AVR) from ABB’s UNITROL 1000 family. It provides reliable and precise voltage regulation for generator excitation systems and industrial power control applications. Designed for panel or cabinet installation, it delivers stable output and protects connected equipment against voltage fluctuations.New-Gen Automation Limited

2. Technical Specifications

• Model: UN1000b‑Z, V3

• Part Number: 3BHE014557R0003

• Product Type: Automatic Voltage Regulator

• Input Voltage Range: Approximately 85–265 V AC or 115–230 V AC/DC (varies with configuration)

• Output: Stable DC excitation control output for generator field excitation

• Voltage Regulation Accuracy: ±0.5 % to ±1 % of set value

• Response Time: < 50 ms to load changes

• Operating Temperature: ‑20 °C to +70 °C

• Storage Temperature: ‑40 °C to +85 °C

• Mounting: Panel or enclosure mount

• Communication (Optional): RS‑485 Modbus RTU for remote monitoring and integration

• Protection Features: Includes overvoltage, undervoltage, overcurrent and thermal protection

• Environmental Rating: Industrial use in control cabinet environments

• Dimensions & Weight: Compact, approximately 1.3 kg

3. Key Advantages & Features

• High‑Precision Regulation – Keeps generator terminal voltage stable under changing loads.

• Fast Dynamic Response – Rapid adjustment to load transients for consistent output.

• Flexible Control Modes – Supports advanced control such as voltage, reactive power, or power factor management.

• Robust Design – Industrial‑grade components ensure reliable long‑term operation.

• Easy Integration – Panel‑mount form and optional communication links for automation systems.

• Comprehensive Protection – Built‑in safeguards increase operational safety.

4. Typical Applications

• Excitation control for industrial and utility generator sets

• Automatic standby power systems and UPS support

• Distributed generation or microgrid voltage management

• Marine auxiliary power and propulsion generator systems

• Control panel power stabilization and automation protection

5. Installation & Usage Notes

• Match Input Power – Provide stable and correctly rated control power supply.

• Ensure Proper Grounding – Good grounding reduces interference and enhances performance.

• Maintain Ventilation – Adequate airflow prevents overheat and ensures durability.

• Configure Parameters Carefully – Adjust according to generator and system requirements before commissioning.

• Perform Regular Maintenance – Check connections and event logs (if applicable) for sustained reliability.