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ABB UNITROL1020 3BHE036163R6106 Static Excitation AVR Controller

The ABBUNITROL1020 3BHE036163R6106 is an industrial-grade all-in-one static excitation automatic voltage regulator (AVR) under ABB UNITROL1000 product line, specially customized for brushless indirectly excited synchronous generators covering small and medium power ranges. It integrates digital control core, IGBT excitation power unit, multi-channel signal sampling circuit, human-machine LCD interface and multi-functional communication modules into a single compact aluminum alloy housing, realizing full closed-loop excitation control for power generation equipment.

Adopting 32-bit high-speed industrial microprocessor as the main control core, UNITROL1020 achieves terminal voltage regulation accuracy up to ±0.5% of rated value, with built-in advanced power system stabilizer (PSS) algorithm to rapidly damp low-frequency power oscillation during grid disturbance, greatly improving grid connection stability. Two independent operation modes are configurable: Auto mode for constant terminal voltage control, Manual mode for fixed field current regulation to meet different unit commissioning and operation demands.

The internal IGBT power circuit provides stable DC excitation output, with continuous rated excitation current 10A DC and peak current up to 15A DC, supporting long-term 24/7 heavy-load operation. Complete multi-layer protection functions are embedded inside the controller: V/Hz overflux limiter, maximum/minimum field current limitation, field circuit overcurrent protection, rotating diode breakdown monitoring, loss of PT signal protection and fast load rejection interlock, effectively avoiding generator and excitation equipment damage caused by abnormal operating conditions.

Multiple communication interfaces (Ethernet, USB, RS485 Modbus RTU) are reserved for seamless data interaction with upper automation platforms; supporting ABB CMT1000 professional commissioning software for one-click parameter setting, fault data export and remote diagnostic analysis. The front panel reaches IP54 protection grade, internal PCB full conformal coating, and the whole unit passes strict temperature cycling, vibration aging and IEC 61000 EMC anti-interference tests, holding CE, UL, DNV marine safety certifications.

Each ABB UNITROL1020 3BHE036163R6106 undergoes full factory function calibration and aging test before delivery, directly interchangeable with old-version UNITROL1020 controllers without additional wiring transformation. It is massively deployed in thermal power stations, hydropower plants, marine generator sets, wind farm auxiliary generators, industrial backup power stations and distributed energy systems, ensuring high-quality power output and safe grid-parallel operation of synchronous generators.

UNITROL1020 3BHE036163R6106

Technical Parameters:

Item	Specification
Full Model	UNITROL1020
ABB Factory Spare Part Code	3BHE036163R6106
Product Type	Static Excitation Automatic Voltage Regulator (AVR)
Applicable Equipment	Small & Medium Brushless Indirect Excited Synchronous Generators
Control Core	32-bit High-speed Industrial Microprocessor
Voltage Regulation Accuracy	±0.5% of Rated Terminal Voltage
Built-in Algorithm	PSS Power System Stabilizer, Reactive Power / Power Factor Regulation
Operation Modes	Auto (Voltage Regulation) / Manual (Field Current Regulation)
Rated Continuous Excitation Output	10A DC
Max Peak Excitation Current	15A DC
Max Excitation Output Voltage	525V DC
Input Control Power Supply	220V AC
Rated Power Consumption	≤200W
Operating Temperature Range	-20℃ ~ +60℃
Storage Temperature Range	-40℃ ~ +70℃
Humidity Resistance	5% ~ 95% RH, Non-Condensing
Vibration Resistance	0.5g RMS, 5Hz ~ 350Hz
Front Panel Protection Grade	IP54
Internal PCB Protection	Full-Board Anti-Corrosion Conformal Coating
Communication Interfaces	Ethernet, USB, RS485 Modbus RTU
Local Operation Unit	Built-in LCD Display & Function Buttons
Mechanical Dimension	200mm × 150mm × 60mm
Net Weight	3.5 KG
Installation Method	Standard Generator Cabinet Fixed Mounting
Standard Certifications	CE, UL, DNV Marine, IEC 61000 EMC Level III
Continuous Operation Capacity	24/7 Uninterrupted Power Generation Duty
Standard Global Warranty	12 Months Factory Quality Warranty

UNITROL1020 3BHE036163R6106

Main Features & Core Advantages:

Main Features

All-in-one integrated design: digital control + IGBT excitation power + HMI display + multi-protocol communication in single unit
±0.5% ultra-precise terminal voltage regulation, stable power quality under fluctuating generator loads
Built-in PSS power system stabilizer to suppress grid low-frequency oscillation and improve grid adaptability
Dual configurable working modes: Auto voltage regulation and Manual field current regulation
Complete full-range generator protection suite: V/Hz limiter, field overcurrent, diode fault, PT loss, load rejection interlock
Dual parallel operation support, automatic reactive power load sharing for multiple generators grid-parallel
Multi-channel communication ports (Ethernet/USB/Modbus) for remote DCS/SCADA monitoring and diagnosis
Local LCD operation panel for on-site parameter adjustment, real-time data display and fault code inquiry
IP54 front panel + full internal conformal coating, anti-dust, anti-humidity, anti-vibration for power station harsh environments
Original ABB Swedish manufacturing, full factory calibration testing, direct plug-and-play OEM replacement spare

Core Advantages

Boost power grid stability: PSS algorithm eliminates power oscillation, suitable for grid-connected distributed generators and marine power systems
Reduce equipment failure risks: Multi-layer excitation and generator protection avoids expensive stator/rotor burnout accidents
Simplify commissioning workflow: Support CMT1000 professional software for fast parameter setting and one-click fault data export
Extend service life: Rugged aluminum housing and conformal coating adapt to long-term operation in damp, dusty power plant workshops
Cut maintenance downtime: Integrated compact structure, direct replacement without cabinet wiring modification
Flexible multi-scenario matching: Covers small industrial backup gensets, hydropower, thermal power and marine generator excitation demands
Lower overall system cost: All-in-one design eliminates separate purchase of control unit, power module and communication adapter
Global authoritative safety certifications, fully compliant with domestic and overseas grid connection standard requirements

UNITROL1020 3BHE036163R6106

Application Fields:

Thermal Power Generation: Small & medium coal-fired power plant synchronous generator excitation control cabinet core spare
Hydropower Station: Low/medium capacity water turbine generator set static excitation AVR replacement
Marine Power System: Ship main generator, auxiliary genset brushless excitation control (DNV marine certified)
Wind Energy Industry: Wind farm backup synchronous generator excitation voltage regulation equipment
Industrial Backup Power: Factory emergency standby synchronous generator excitation system overhaul spare parts
Distributed Energy: Distributed grid-connected small synchronous generator voltage & reactive power control
Mining & Metallurgy: Mine self-provided power station medium generator excitation cabinet maintenance
General Power Automation: ABB UNITROL1000 series excitation system spare inventory backup & renovation projects

FAQ:

Q1: What is the relationship between UNITROL1020 and part number 3BHE036163R6106?

A: UNITROL1020 is the official product model name of the excitation controller, while 3BHE036163R6106 is ABB’s unique factory order spare part code; the two codes refer to the identical complete excitation AVR unit with consistent hardware and full functions.

Q2: What generators is UNITROL1020 3BHE036163R6106 suitable for?

A: It is designed exclusively for small and medium-sized brushless indirect-excited synchronous generators, widely applied in thermal, hydro, marine, industrial backup and wind auxiliary power generation units. Confirm generator excitation parameters before ordering.

Q3: What working modes does this excitation controller support?

A: Two core operation modes are available: Auto mode for automatic terminal voltage constant control; Manual mode for fixed field current regulation, convenient for unit commissioning, maintenance and off-grid operation.

Q4: What communication methods can be used for remote monitoring?

A: Built-in Ethernet, USB and RS485 Modbus RTU interfaces. Users can connect to upper DCS/SCADA systems for real-time running data upload, remote parameter modification and fault diagnosis via ABB CMT1000 software.

Q5: Are the supplied UNITROL1020 units brand new original ABB products? What warranty is offered?

A: We supply 100% brand new original Swedish ABB UNITROL1020 3BHE036163R6106 excitation controllers with complete factory calibration and aging tests, covered by a 12-month global quality warranty. Refurbished used units are available upon special customer request.

Q6: Does professional ABB engineer need to complete installation and commissioning?

A: Mechanical fixed installation can be finished by electrical maintenance technicians familiar with generator cabinets; parameter matching, PSS tuning and grid-parallel test require professional engineers experienced with ABB UNITROL excitation systems.

Q7: What fault information can UNITROL1020 record and upload to upper monitoring systems?

A: Real-time generator terminal voltage, stator current, field excitation current, PSS operating state, overvoltage/overcurrent alarm timestamps, rotating diode fault codes, PT signal loss records and controller self-diagnostic status data.

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.

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