Description
🔹 Product Description
The ABB UNITROL 1005 is a compact digital Automatic Voltage Regulator (AVR) designed for excitation control of small synchronous generators. It belongs to the ABB UNITROL 1000 excitation system family and provides voltage regulation, field current control, protection functions, measurement, and communication capabilities for generator excitation applications.
The UNITROL 1005 integrates IGBT-based power electronics, digital control technology, and excitation monitoring functions in a compact design. It supports AVR, Field Current Regulator (FCR), and reactive power / power factor control functions depending on the software configuration. The unit is suitable for industrial generators, OEM generator packages, mobile power units, and other applications requiring stable generator voltage control.
The controller provides Ethernet and USB communication interfaces, digital and analog I/O, generator voltage measurement, excitation current measurement, and integrated field flashing functions. It is designed for simplified commissioning and maintenance using ABB CMT 1000 tools.
UNITROL 1005
⚙️ Product Features
🔹 Compact digital AVR for small synchronous generator excitation systems.
🔹 IGBT-based excitation output stage for generator field control.
🔹 Supports AVR / FCR / PF / VAR control functions.
🔹 Integrated field flashing for generator voltage build-up.
🔹 Ethernet and USB communication interfaces.
🔹 Digital and analog input/output channels for system integration.
🔹 Generator voltage, current, and excitation measurements.
🔹 Suitable for industrial and marine generator applications.
🔹 Compact installation design for limited cabinet space.
📋 Product Datasheet
| Parameter | Value |
|---|---|
| Brand | ABB |
| Model | UNITROL 1005 |
| Series | UNITROL 1000 |
| Product Name | Automatic Voltage Regulator (AVR) Excitation Controller |
| Product Type | Digital Generator Excitation System |
| Application | Synchronous Generator Voltage Regulation |
| Excitation Output | 8 A DC Continuous / 16 A DC Overload (10 sec at 55°C) |
| Input Voltage | 16–250 V AC / 18–300 V DC |
| Communication | Ethernet 10/100 Mbit/s, USB |
| Digital I/O | 8 Digital Inputs, 4 Digital Outputs |
🔧 Application
The ABB UNITROL 1005 is mainly used for generator excitation and voltage regulation systems.
Typical applications include:
⚡ Industrial generator sets
⚡ Marine auxiliary generators
⚡ Mobile power generation equipment
⚡ Small hydro and renewable energy generators
⚡ OEM generator packages
⚡ Power plant auxiliary excitation systems
The controller measures generator voltage, current, and excitation parameters, then adjusts the excitation output to maintain stable generator voltage under changing operating conditions.
🔌 System Integration
The UNITROL 1005 can be integrated into generator control systems through digital I/O, analog signals, Ethernet communication, and USB service connection. It supports machine voltage measurement up to 500 V AC and excitation current measurement from 0 to 25 A.
The device can operate with different excitation power sources, including generator output through a shunt transformer, permanent magnet generator (PMG), auxiliary winding supply, or DC battery supply depending on the system design.
Before replacement, verify the generator rating, excitation current requirements, wiring configuration, parameter settings, and software configuration.
❓ FAQ
Q1: What is ABB UNITROL 1005 used for?
A1: It is a digital Automatic Voltage Regulator used to control generator excitation and maintain stable output voltage on synchronous generators.
Q2: What type of generators can use UNITROL 1005?
A2: It is designed for small synchronous generator excitation applications, including industrial and OEM generator systems.
Q3: What is the excitation output capability?
A3: The UNITROL 1005 provides up to 8 A DC continuous excitation current at 55°C and 16 A DC overload capability for 10 seconds.
Q4: What communication interfaces are available?
A4: The controller provides Ethernet and USB communication interfaces.
Q5: Does UNITROL 1005 support reactive power control?
A5: Depending on the installed software package, it supports PF and VAR control functions.
Q6: Can UNITROL 1005 replace older excitation controllers?
A6: It may replace compatible excitation controllers when generator parameters, excitation ratings, wiring, and control requirements are matched.
Q7: What software is used for commissioning?
A7: ABB provides CMT 1000 commissioning and maintenance tools for UNITROL 1005 systems.
Q8: Is UNITROL 1005 suitable for marine applications?
A8: Yes. It can be applied in generator systems used in industrial and marine power applications when the electrical requirements are compatible.
⭐ Recommended ABB Models
- UNITROL 1010 — Digital AVR excitation controller for medium-range generator applications.
- UNITROL 1020 — Advanced excitation controller with higher excitation current capability.
- UNITROL 1000 FLEXPlus — Pre-engineered excitation system solution for flexible generator integration.
- UNITROL F — Digital excitation system for larger synchronous generators.
- UNITROL 6000 — High-performance excitation system for large power generation units.
- UNITROL 6080 — Advanced excitation control platform for large generator applications.
- UNITROL PSS — Power System Stabilizer solution for generator grid stability improvement.
- PCD530 — ABB excitation control and power system stabilizer equipment.
- REG216 — ABB generator excitation and protection controller family.
- DCS500 / DCS800 Excitation Controllers — ABB DC drive and excitation control product family.
🛠️ Installation Note
Always verify the complete UNITROL model, excitation current rating, generator voltage class, wiring terminals, software package, and parameter configuration before commissioning. Incorrect excitation settings may affect generator operation and system stability.
