ABB UNITROL 1010‑0003 3BHE035301R0003 Automatic Voltage Regulator
Product Introduction
ABB UNITROL 1010‑0003 3BHE035301R0003 is a digital automatic voltage regulator of the UNITROL1000 series. It is developed for indirect brush‑less excitation scenarios of medium‑and‑small‑size synchronous generators and synchronous motors, adopting IGBT power output architecture and dual‑processor hardware design. UNITROL 1010‑0003 3BHE035301R0003 performs closed‑loop generator voltage regulation, reactive power control, system protection and data recording. It adapts to various working conditions including land‑based power stations, ships and locomotives and complies with mainstream grid specifications. It is widely applied in excitation retrofitting and new‑built unit projects. This hardware unit has no local HMI, and parameter configuration and fault troubleshooting are completed via CMT1000 commissioning software. It supports multiple bus communications to connect with power‑station control systems.
Technical Parameters
| Parameter Item | Specification |
|---|---|
| Continuous Excitation Output Current | 10A DC, ceiling excitation current 25A DC (55 ℃ ambient) |
| Auxiliary Power Supply | Wide‑range AC / DC input |
| Processor Architecture | Independent control processor, independent communication processor |
| Communication Interface | Ethernet, Modbus TCP, RS485 Modbus RTU, CAN bus |
| I/O Ports | Analog input & output, configurable digital input & output |
| Cooling Method | Natural air cooling, fan‑less |
| Operating Ambient Temperature | ‑10 ℃ ~ +55 ℃ |
| Storage Temperature | ‑40 ℃ ~ +70 ℃ |
| EMC Performance | High EMC immunity, physical isolation between power terminals and signal terminals |
| Software Tool | CMT1000 commissioning and maintenance software |
| Certification | DNV, UL certification, meets grid Fault Ride‑Through (FRT) requirements |
| Installation | DIN‑rail cabinet mounting |
Core Advantages
- Dual‑processor separated architecture; voltage‑regulation function remains unaffected when communication links suffer interference, ensuring stable unit operation.
- Built‑in complete limiter logic, soft start, voltage matching and Fault Ride‑Through (FRT) functions to meet grid‑connection requirements.
- Supports dual‑mode operation: voltage regulation and reactive‑power / power‑factor regulation; load sharing is achievable under multi‑unit parallel conditions.
- On‑board event log and runtime‑data recording with timestamps for convenient fault traceability and analysis.
- All I/O channels are software‑configurable; different unit‑wiring logics can be adapted without hardware modification.
- Compatible with multiple AC and DC power‑supply sources for flexible on‑site power‑scheme selection.
- External UNITROL1000‑PM40 power module can expand excitation output capacity to satisfy higher‑power excitation demands.
Product Features
- Compact cabinet‑mounted structure for UNITROL 1010‑0003 3BHE035301R0003; physical partition between power circuit and measuring‑signal terminals reduces on‑site interference.
- No rotating fan components; fewer maintenance points, suitable for long‑term continuous operation.
- All parameters and event logs are stored in non‑volatile flash memory; data is retained after power loss.
- Supports construction of dual‑channel redundant control schemes for high‑reliability power‑station projects.
- Standardized hardware; function upgrades are realized via software version switching without hardware replacement.
- Adapts to indirect brush‑less excitation systems; cooperates with rotating‑diode exciters for excitation control without slip‑ring maintenance.
Application Fields
Land‑based diesel generator sets, gas generator sets, hydro‑turbine generator sets; marine power stations, excitation control for marine electric‑propulsion synchronous motors; diesel‑generator excitation systems for internal‑combustion locomotives; driving conditions for medium‑and‑small‑size synchronous motors; retrofitting and replacement projects for old excitation systems; distributed‑energy and small‑wind‑power synchronous‑unit excitation control.
Working Principle
UNITROL 1010‑0003 3BHE035301R0003 collects generator terminal voltage, current and grid‑side‑voltage signals. Its internal processor compares set‑point voltage with actual sampled voltage and outputs control signals to drive the IGBT power unit, producing controllable DC excitation current for the exciter field winding. AC output from the exciter is rectified by shaft‑mounted rotating diodes and fed to the main‑generator rotor field winding, thus realizing closed‑loop regulation of generator terminal output voltage. Integrated limiting‑and‑protection logics automatically restrict output under excitation over‑current, voltage out‑of‑range and grid‑disturbance conditions while recording event logs. The commissioning host CMT1000 connects to the device via Ethernet or USB to complete parameter tuning, logic modification and data reading.
Same‑Brand Product Comparison
| Model | Product Positioning | Key Differences |
|---|---|---|
| UNITROL1005 | Entry‑level model of the same series | 5A DC continuous excitation current, for small‑power units; hardware interfaces and software architecture consistent with UNITROL 1010‑0003 3BHE035301R0003 with lower maximum output current. |
| UNITROL1010‑0003 | Medium‑power brush‑less excitation mainstream selection | 10A DC continuous output, no local HMI; commissioning depends on CMT1000 software. |
| UNITROL1020 | High‑current medium‑and‑small‑unit regulator | 20A DC continuous excitation, same hardware dimension as UNITROL1010; partial versions with local HMI panel for higher‑power medium‑and‑small‑size units. |
| UNITROL6000 series | Large power‑station excitation system | Higher power rating, mostly applied for tens‑of‑MW‑class turbo‑generators. |
Matching Accessories
- UNITROL 1000‑PM40 3BHE015411R0001, external power‑expansion module, raises max continuous excitation output current up to 40A DC.
- CMT1000 commissioning software for parameter configuration, fault diagnosis and log reading.
- Rotating‑diode assemblies, matching the main circuit of brush‑less exciters.
- Excitation transformer, supporting power‑input component for excitation systems.
- De‑excitation switch, supporting protection device for generator rotor de‑excitation.
- Third‑party PLC / DCS systems for data exchange via Modbus TCP Ethernet protocol.
Our Supply Advantages
Spot and forward delivery for UNITROL 1010‑0003 3BHE035301R0003 are available; bulk multi‑batch procurement is supported.
FAQ
Q1: Does UNITROL 1010‑0003 3BHE035301R0003 come with a local display operation panel?
A1: This model has no local HMI display panel. All parameter commissioning and status viewing are completed via PC‑side CMT1000 software.
Q2: What is the maximum excitation output current of UNITROL 1010‑0003 3BHE035301R0003?
A2: The unit itself delivers 10A DC continuous and 25A DC ceiling current. With external UNITROL1000‑PM40 module, continuous output can be extended up to 40A DC.
Q3: What key information shall be confirmed before purchasing UNITROL 1010‑0003 3BHE035301R0003 to avoid wrong‑part delivery?
A3: Confirm complete part number 3BHE035301R0003, unit excitation parameters, excitation mode, software‑version requirements and power‑supply input conditions.
Q4: Can UNITROL 1010‑0003 3BHE035301R0003 directly replace the older UNITROL1000‑15?
A4: Mechanical mounting dimensions are compatible, yet parameter retuning is required; partial legacy‑function logics need re‑configuration in software. It cannot be powered‑on and used directly.
Q5: Does CMT1000 software require separate license purchase?
A5: CMT1000 is a matching commissioning tool with no extra license required; it supports full‑series commissioning for UNITROL1005 / 1010 / 1020.
Q6: Does UNITROL 1010‑0003 3BHE035301R0003 support brushed‑excitation generators?
A6: This model targets indirect brush‑less‑excitation scenarios; direct application for brushed direct‑excitation schemes is not recommended.
Q7: Which communication protocols are supported by this unit?
A7: Modbus TCP Ethernet, Modbus RTU RS485 and CAN bus are supported. IEC61850 is not native; extra hardware expansion is required.
Q8: How to retrieve internal event records when device faults occur?
A8: Install CMT1000 software on PC, connect Ethernet port directly via network cable, then read internally stored event logs and runtime records.
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Technical Document Remarks
Reference sources: ABB UNITROL1000‑series product manual, quick‑installation manual and technical datasheet. Document reference No.: 8VZZ002310T0001 hardware manual and CMT1000 commissioning‑tool documentation. Part‑number verification shall be based on 3BHE035301R0003. Different suffix versions deliver different functions; always verify the complete part‑number during model selection.
