Basic Information
ABB Unitrol 1020 3BHE036163R6206 Full Digital Automatic Voltage Regulator (AVR) belongs to the UNITROL1000 series. It is designed for excitation control of synchronous motors and synchronous generator sets with capacity up to 80MVA. The ABB Unitrol 1020 3BHE036163R6206 adopts a dual-processor architecture with separated control and communication tasks, integrated IGBT power circuit and multiple regulation modes.
This Unitrol 1020 3BHE036163R6206 realizes closed-loop regulation of terminal voltage stabilization, excitation current, power factor and reactive power. It fits newly-built excitation cabinets and digital retrofitting of old excitation systems. Equipped with a local display panel, abundant I/O and industrial communication interfaces, and built-in complete limit and protection logic, it complies with global grid codes. It is a mainstream excitation controller for synchronous units in medium & small power stations and marine power plants.
Technical Specifications
- Max excitation output current: 20A
- Rated applicable unit capacity: up to 80MVA
- Hardware architecture: Independent dual processors, separate control processor and communication processor
- Local operation: Front LCD operation panel, exclusive to Unitrol 1020 model
- Communication interfaces: Ethernet, USB, RS485, CAN bus
- Communication protocols: Modbus TCP; RS485 supports reactive power load sharing
- Analog & digital signals: Configurable analog input/output, multi-channel programmable digital I/O
- Auxiliary power supply: Wide-range AC & DC auxiliary power supply
- Built-in regulation modes: AVR automatic voltage regulation, FCR field current regulation, PF power factor regulation, VAR reactive power regulation
- Protection & limit functions: Over-excitation limit, under-excitation limit, V/Hz limit, rotating diode monitoring, unit stability boundary limit
- Supporting commissioning software: CMT1000, for parameter configuration, oscillography, event logging and fault tracing
- Data storage: Non-volatile flash memory, time-stamped event and fault logs
- Mounting: DIN rail cabinet mounting, compact cabinet layout
Core Advantages
Unitrol 1020 3BHE036163R6206 runs control and communication processors independently to reduce task conflicts and improve long-term operational stability. It supports single-channel deployment or dual-channel redundant configuration to meet high-reliability operation requirements of power stations. Complete built-in limit and protection algorithms protect synchronous units under grid disturbances and fault conditions. Rich hardware interfaces and freely configurable I/O adapt to wiring logic of different projects and reduce extra expansion modules. CMT1000 commissioning tool simplifies on-site commissioning, shortens unit commissioning period and improves fault diagnosis efficiency. Wide-range AC/DC power supply adapts to industrial environments with fluctuating power such as marine power stations and mobile power plants. Compact overall dimension fits directly into standard excitation control cabinets and facilitates replacement of old analog AVR devices.
Product Features
ABB Unitrol 1020 3BHE036163R6206 is a full digital excitation regulator equipped with IGBT power unit. The front panel integrates LCD display and operation keys, enabling local parameter and alarm viewing without host PC. Flash memory continuously stores event records and waveform data with timestamps for accident analysis. Modular software functions with optional software packages; PSS power system stabilizer is available as an option. Supports parallel operation of multiple generator sets and reactive power sharing among units via RS485 bus. Voltage matching function for voltage synchronization matching before generator grid connection. Online rotating diode monitoring for state diagnosis of rotating rectifier bridges in brushless excitation units. Complies with multiple international standards, suitable for harsh working conditions including land power stations and marine applications.
Application Fields
- Excitation control for diesel generator sets and gas turbine captive power plants
- New construction and excitation retrofitting of medium & small hydroelectric and steam turbine generator sets
- Biomass, waste incineration waste heat captive power plants
- Marine power stations and excitation systems for synchronous motors in marine electric propulsion
- Synchronous motor drive systems for industrial & mining enterprises
- Synchronous excitation control for electric transmission of diesel locomotives
- Grid-connected voltage and reactive power regulation for distributed energy power stations
- Spare parts replacement projects for generator excitation systems
Comparison with Same Brand Products
UNITROL1010 belongs to UNITROL1000 series with similar hardware structure. It has no local operation panel and streamlined function versions, suitable for projects with limited budget and no local operation requirement. Its maximum excitation current is also 20A. UNITROL1010 lacks some advanced functions and front HMI.
ABB Unitrol 1020 3BHE036163R6206 comes with local operation panel and more complete software packages. It supports rotating diode monitoring, automatic synchronization and optional PSS. It fits projects requiring local operation, dual-channel redundancy and advanced protection logic.
UNITROL6000 series targets large-capacity generator sets with higher power rating and IEC61850 support. Designed for large thermal power and nuclear power main machine excitation, it features larger footprint and higher project investment, clearly differentiated from Unitrol 1020 3BHE036163R6206 for medium & small capacity applications.
Matching Supporting Products
- CMT1000 PC commissioning software for parameter tuning and oscillography of Unitrol 1020 3BHE036163R6206
- UNITROL1000-PM40 power supply module
- UNITROL 1000 FLEX complete excitation cabinet kit
- Matching current & voltage transformers for generator terminal voltage and excitation current sampling
- RS485 bus terminating resistor module
- Ethernet switch for SCADA host connection via Modbus TCP
- Surge protection terminal module for lightning protection of cabinet signal loops
FAQ
Q: What capacity synchronous generator can Unitrol 1020 3BHE036163R6206 support?A: This AVR supports synchronous units up to 80MVA. It is normally recommended for units ≤50MVA with maximum excitation output of 20A.
Q: Does Unitrol 1020 3BHE036163R6206 support dual-channel redundant operation?A: Yes. Dual-channel redundant architecture is available. Two sets of Unitrol 1020 3BHE036163R6206 can be configured for master-standby switching to improve excitation system reliability.
Q: What software versions should be confirmed when purchasing Unitrol 1020 3BHE036163R6206?A: Confirm software package types: BASIC, BASIC+SYNC, FULL, FULL+PSS. PSS is an optional power system stabilizer license. Confirm project PSS requirement in advance.
Q: Does Unitrol 1020 3BHE036163R6206 come with PSS function?A: PSS is an optional software license. Basic versions do not include PSS; PSS is activated only in FULL+PSS edition.
Q: Can Unitrol 1020 3BHE036163R6206 replace old analog excitation regulators?A: Yes. I/O channels support custom configuration for digital retrofitting of legacy excitation cabinets. CT/PT signals and power supply conditions need verification.
Q: Does Unitrol 1020 3BHE036163R6206 support IEC61850 protocol?A: UNITROL1000 series does NOT support IEC61850. IEC61850 is implemented in UNITROL6000 series. Unitrol 1020 3BHE036163R6206 uses Modbus TCP and RS485.
Q: Is separate license required for supporting CMT1000 commissioning software?A: CMT1000 commissioning tool is provided free of charge with no extra software license fee. Commissioning cables need to be prepared separately.
Q: Is Unitrol 1020 3BHE036163R6206 suitable for brushed or brushless excitation generator sets?A: The product is mainly designed for brushless indirect excitation systems. It can also be applied to selected brushed excitation retrofitting projects under proper conditions.
Recommended Same Series Models
- UNITROL 1010-0002 LIGHT Automatic Voltage Regulator
- UNITROL 1010-0003 BASIC Automatic Voltage Regulator
- UNITROL 1020-0003 BASIC Automatic Voltage Regulator
- UNITROL 1020-0004 BASIC + SYNC Automatic Voltage Regulator
- UNITROL 1020-0006 FULL Automatic Voltage Regulator
- UNITROL 1020-0007 FULL + PSS Automatic Voltage Regulator
- UNITROL 1000-PM40 Power Supply Module
- UNITROL 6000 Light Excitation Controller
- UNITROL 6000 Medium Excitation Controller
- UNITROL 6000 Nuclear Excitation Controller
- UNITROL 1000 FLEX Complete Excitation System
- UNITROL 1005 Automatic Voltage Regulator
Notes
When selecting Unitrol 1020 3BHE036163R6206, confirm excitation current requirement, generator capacity, grid connection requirements and software options. Check input power rating before installation; incorrect power supply will cause hardware damage. Separate wiring for signal terminals and power terminals to reduce electromagnetic interference and guarantee sampling precision of voltage and current. Parameter modification requires CMT1000 tool. Always back up parameter files after on-site modification. PSS activation requires parameter tuning based on unit stability simulation; default parameters cannot be directly applied. Store in dry environment; avoid long-term storage in high humidity, dusty or corrosive gas conditions. Check grounding circuit after hardware wiring. Reliable grounding reduces interference and ensures personal safety.
Product Tags
ABB Unitrol 1020 3BHE036163R6206, Automatic Voltage Regulator, AVR, UNITROL1000 series, excitation regulator, synchronous generator excitation controller, generator voltage regulator, Unitrol1020 excitation module
