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UNITROL 1020 3BHE030579R0003 Other names:
Excitation controller UNITROL 1020 3BHE030579R0003
UNITROL 1020 3BHE030579R0003 Excitation System Processor
Excitation voltage regulator UNITROL 1020 3BHE030579R0003
UNITROL 1020 3BHE030579R0003 Indirect Excitation System
UNITROL 1020 3BHE030579R0003 is a voltage regulator of the UNITOL 1000 series, suitable for small and medium-sized synchronous generators and industrial machinery. UNITROL 1020 3BHE030579R0003 combines performance control and power circuits with simple mechanical design
UNITROL 1020 3BHE030579R0003 is a powerful and compact automatic voltage regulator with built-in dual channel support, advanced load sharing between parallel running machines, rotating diode monitoring, automatic synchronization, and multiple integrated communication options.
UNITROL 1020 3BHE030579R0003 is a voltage regulator of the UNITOL 1000 series, suitable for small and medium-sized synchronous generators and industrial machines. This voltage regulator adopts the most advanced microprocessor technology and IGBT semiconductor manufacturing, allowing current output up to 20 ADC for continuous operation. UNITROL 1020 3BHE030579R0003 has high performance under various temperature and vibration conditions, and has been fully certified according to DNV and UL standards. Compared to the old version, UNITROL 1020 3BHE030579R0003 has more features such as Ethernet, USB, data and event recorders, etc.
UNITROL 1020 3BHE030579R0003 Main Features Operation Mode
Using an adjustable PID controller for automatic voltage control
Power factor and reactive power controller using PID control algorithm
Excitation current regulator using PI control
Reactive power distribution of parallel and islanded generators
Automatic synchronization and pre synchronization voltage matching
Monitoring and limiter
Provide standby function and set point tracking function for redundant channel system through reliable CAN bus
Enhance system monitoring functions, such as voltage transformer monitoring
Synchronization check function
Rotating diode monitoring function (RDM)
Various limiter functions (excitation current limiter and many other functions)
Data loggers and trends
Automatic and manually triggered data loggers record measurement values and user selected data
The event recording function records successful information as well as time and date information
Use user-friendly debugging and maintenance tool CMT1000 trend recorder
Communication interfaces and tools
Realize full function MODBUS communication through standard Ethernet and RS485
Easy configuration and reading of measurement values through the powerful regulator’s LCD panel
CMT1000, a powerful and user-friendly debugging and maintenance software tool, allows for easy parameterization, monitoring, trend analysis, and optimization
All kinds of things
Power system stabilizer compliant with IEEE PSS 2A/2B
Powerful dual processor technology can maintain control over regulation even in the event of interference on the Ethernet communication side
UNITOL ® 1000 series UNITOL ® The 1000 series is ABB’s brushless excitation system, suitable for applications using synchronous machines ranging from 100kVA to 80MVA.
UNITROL ® The 1000 series has been deployed in over 20000 devices worldwide, suitable for power plants, ship electric propulsion and auxiliary power sources, diesel electric locomotives, port cranes, and mining trucks.
UNITOL ® The excitation system is a critical component of many generator sets, used by power plant owners and operators to achieve reliability, stability, and fast transient response of equipment operation according to grid requirements.
The ABB excitation system, combined with automation and electrical systems, rotating machinery control, instrumentation, and advanced digital services, forms a complete and reliable system that can serve all power generation facilities. Certified by TUV – the world’s first excitation system that complies with German grid specifications VDE-AR-N 4110 and VDE-AR-N 4120.
UNITOL ® one thousand and twenty
UNITROL 1020 is a voltage regulator designed specifically for small and medium-sized synchronous generators and industrial machinery. It combines performance control and power circuits with simple mechanical design, providing high performance under various temperature and vibration conditions. This one
The Automatic Voltage Regulator (AVR) features built-in dual channel support, advanced load sharing between parallel running machines, rotating diode monitoring, automatic synchronization, and multiple integrated communication options. It adopts the most advanced microprocessor technology and IGBT semiconductor manufacturing, allowing current output of up to 20 ADC for continuous operation.
UNITOL ® one thousand and ten
UNITOL ® 1010 is an indirect excitation system suitable for small and medium-sized synchronous generators and industrial machines. Its advanced microprocessor technology and IGBT semiconductor allow for current output up to 10 ADC for continuous operation.
With built-in dual channel support, advanced load sharing between parallel running machines, rotating diode monitoring, automatic synchronization, and multiple integrated communication options, the UNITOL 1010 can provide high performance under various temperature and vibration conditions.
UNITOL ® one thousand and five
UNITROL 1005 is the smaller component in this series, designed specifically for low-end excitation applications, with a maximum excitation current of up to 5 ADC.
Like all UNITOLO1000 products, UNITOLO 1005 is based on the same target software source code and shares the same simulation model, making it highly suitable for demanding grid code applications.
This kit includes CMT1000, a tool for centralized and rapid debugging.
UNITOL ® The 1000 FLEX system is a pre packaged solution for applications that require single or dual channel controllers. All systems are equipped with UNITOL ® 1020 FULL, as a standard device, fully utilizes the best solution to achieve optimal pricing and flexible project adjustment constraints.
With the rapid transition to standard applications, this solution brings together all the functions required for the excitation system. Pre packaged solutions allow you to design excitation systems in the most flexible and cost oriented way possible.
All products on this website are special products, and market prices have been fluctuating,
Please refer to the customer service quotation for details, as the product is new and the price is not genuine,
Please confirm the model, product, price, and other detailed information with customer service before placing an order. The website has been used,
The new one is for sale, please contact customer service for further communication.
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II. Product Positioning and Applicable Units
Integrated IGBT with built-in power circuit and compact excitation, suitable for 0.5~50MW synchronous generator/synchronous motor static excitation systems:
Onshore: Diesel/gas/steam turbine/hydropower plants, distributed microgrids, data center backup units
Special Applications: Marine power plants, diesel locomotive synchronous units, direct-drive synchronous wind turbines, high-power synchronous compressors
Operating Conditions: Single-unit islanding, multi-unit grid-connected parallel operation, supporting constant voltage/constant reactive power/constant power factor dispatching
III. Core Electrical Rated Parameters
1. Excitation Power Output (Integrated IGBT Power Unit)
55℃ Long-term Continuous Excitation Current: 20A DC
70℃ Long-term Continuous Excitation Current: 10A DC
10s Short-time Overload Peak: 38~40A DC
Maximum Withstand Voltage of Excitation Circuit: 420V DC Peak
2. Auxiliary Control Power Supply (Wide Range Universal)
DC: 12.5~48V DC
AC Single-phase/Three-phase: 9~300V AC, 40~600Hz
Total Power Consumption: ≤40W
3. Voltage Regulation Performance
Steady-state voltage regulation accuracy: ±0.5% (compliant with IEEE 421.5, IEC excitation standards)
Closed-loop response <10ms, built-in PSS1A/PSS2A power system stabilizer to suppress low-frequency oscillations
Terminal PT sampling compatible with 0~500V single-phase/three-phase voltage
4. Environment and Installation
Operating temperature: -25℃ ~ +70℃
Protection level: IP20 (DIN rail/panel mounting in cabinet)
EMC industrial anti-interference, SIL2 safety certification, unit weight 1.3kg
IV. Five Major Operating Control Modes
AVR Automatic Voltage Regulation (Main Mode): Dual closed-loop PID voltage regulation of voltage and excitation current
FCR Manual Excitation Current Mode: Constant excitation output during startup, maintenance, and debugging
Constant Reactive Power Control Var: Reactive power output for grid-connected units
Constant Power Factor PF: Stable power factor for industrial synchronous motors
Multi-unit parallel reactive power sharing, automatic pre-voltage adjustment before grid connection
V. Complete Set of Built-in Limits and Fault Protection (Configurable Alarms/Trips)
OEL Overexcitation Limit, UEL Underexcitation Limit, V/Hz Limit (Prevents Core Saturation)
PT Voltage Disconnection, CT Disconnection, Excitation Overcurrent, Rotor Short Circuit, Loss of Excitation Protection
RDM Rotating Diode Fault Monitoring, Terminal Overvoltage/Undervoltage, Overall Overheat Protection
I²T Inverse Time Overcurrent, Soft Start Excitation, Controllable Demagnetization Logic
VI. Hardware Interface Configuration
1. Local HMI HMI
Front-mounted LCD screen + physical navigation buttons allow for on-site viewing of voltage, excitation current, reactive power, and fault codes, eliminating the need for basic computer parameter settings.
2. Multi-channel Communication
USB: Direct connection to PC-dedicated debugging software CMT1000 for parameter download, fault recording, and firmware upgrade.
RJ45 Ethernet: Modbus TCP, IEC61850 (MMS/GOOSE) interface for DCS backend.
RS485: Modbus RTU traditional PLC bus.
CAN Bus: Multiple UNITROL1000 units for master-slave parallel communication.
3. Programmable Pluggable I/O Terminals
Multiple DI Digital Inputs (24V): Excitation, tripping, mode switching, external setpoint.
DO Relay Outputs: Running, alarm, protection trip contacts.
AI/AO Analog Signals: 4~20mA/±10V reactive power and voltage feedback signals.
VII. Supporting Debugging Software CMT1000
Batch configuration of unit excitation parameters, grid standard template retrieval.
Real-time waveform monitoring, disturbance test transient recording and storage (COMTRADE). (Format)
Complete fault event log, historical alarm export and analysis
Controller firmware upgrade, hardware channel self-test diagnosis
IX. Panel LED status indicators
Green power light solid: Control power supply normal; flashing = Firmware normal operation
Yellow excitation light solid: Excitation circuit in operation; flashing = Certain limiting function activated
Red fault light solid/flashing: Alarm, excitation failure, protection lockout, fault trip
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