Description
ABB UNITROL1010 Compact Digital Automatic Voltage Regulator (AVR / Excitation Controller)
Product Brand & Model Title
Official Product Name: UNITROL1010 Compact Digital Automatic Voltage Regulator (AVR / Excitation Controller) Brand: ABB Order codes: ‑ UNITROL1010‑0002 LIGHT：3BHE035301R0002 ‑ UNITROL1010‑0003 BASIC：3BHE035301R0003 ‑ UNITROL1010‑0004 BASIC+SYNC：3BHE035301R0004STAMFORD |… Product Grade: Compact IGBT‑based excitation controller for synchronous machines up to 80 MVA; active production, available for new‑project and spare‑part supplyeero。
General Product Overview
UNITROL1010 belongs to ABB UNITROL‑1000 family, wall‑mount digital excitation AVR adopting IGBT power stage. It performs generator voltage regulation, field‑current regulation, power‑factor / reactive‑power regulation for brushless synchronous generators, hydro‑generators and synchronous motors. It supports bumpless mode transfer, multiple protection limiters, island‑mode reactive‑load sharing, rotating‑diode monitoring and generator synchronisation function (SYNC version). Equipped with Ethernet, USB, RS485 and CAN bus interfaces, supports CMT1000 configuration tool, event‑log and disturbance‑recorder. Widely used for small‑medium power‑plant, diesel gensets, CHP co‑generation and industrial synchronous motor excitation control。
Model Coding Definition
‑ : Compact excitation controller platform of UNITROL‑1000 series ‑ LIGHT: Basic function package: AVR/FCR/PF/VAR control + basic limiters ‑ BASIC: Add Modbus‑TCP, rotating‑diode monitoring, reactive‑load sharing, dual‑channel self‑monitoring ‑ BASIC+SYNC: Add automatic synchronisation function for genset‑mains / genset‑genset parallelingeero
Key difference vs UNITROL1020: 1010 continuous excitation output 10 ADC; 1020 is 20 ADC.
UNITROL1010 3BHE035301R1002 UNS 0121A-Z,V1
Technical Specifications
Electrical Parameters
‑ Excitation output：10 ADC continuous @55℃; 20 ADC overload for 10 seconds ‑ Main power input：AC 0‑300V / DC 0‑420V ‑ Auxiliary supply：AC 9‑250V(1‑/3‑phase), DC 18‑300V; frequency 25‑600 Hz ‑ Voltage regulation accuracy：±0.2 % at 25 ℃ ‑ AVR response time：＜20 ms (3‑phase measurement), ＜50 ms (single‑phase) ‑ Measurement frequency range：10‑150 Hz ‑ Control modes：AVR, FCR(field current), PF(power‑factor), VAR(reactive‑power); bumpless transfer between modes
Limiters & Protection
‑ Excitation current min/max limiter, V/Hz limiter, PQ‑limiter, machine current limiter ‑ Rotating‑diode fault monitoring (BASIC version) ‑ Field‑overcurrent, loss‑of‑excitation, over‑/under‑voltage protection
Communication Interfaces
‑ Ethernet: Modbus‑TCP, CMT1000 tool connection ‑ USB: Local configuration, firmware upgrade, data log export ‑ RS485: Modbus‑RTU ‑ CAN: Inter‑controller communication for multi‑genset load‑sharing
Digital / Analog I/O
‑ Multi‑channel configurable DI/DO via screw terminals ‑ Analog input 0/4‑20 mA / ±10 V for external set‑point ‑ Relay alarm contact for system fault signal
Environmental Specifications
‑ Operating temperature：‑40 ℃ ~ +70 ℃; max heatsink temp 90 ℃ABB Group ‑ Storage temperature：‑40 ℃ ~ +85 ℃ ‑ Relative Humidity：5‑95 %, non‑condensing ‑ Vibration & Shock：Compliant IEC 60068‑2‑6 / IEC 60255‑21‑2, DNV Class B ‑ EMC：EN 61000‑6‑2, EN 61000‑6‑4 ‑ Ingress Rating：IP20 (wall‑mount cabinet installation)
Mechanical & Certification
‑ Mounting：Wall‑mount, aluminium heatsink base ‑ Weight：approx. 2.1 kg ‑ Certifications：CE, cUL 508c, DNV Class B for marine / offshore application ‑ Lifecycle Status：Active production, new‑stock & spare‑part available
Core Product Features
- Multi‑mode bumpless transfer: Smooth switch between AVR, field‑current, power‑factor and reactive‑power regulation without generator disturbance.
- Rich built‑in limiters & protection suite: Prevents over‑excitation, V/Hz over‑flux and PQ‑diagram boundary violation for synchronous machine safety.
- Rotating‑diode monitoring (BASIC package): Detect brushless rectifier diode failure without extra hardware.
- Island‑mode reactive‑load sharing: Support up to 31 parallel gensets for independent‑power‑house operation.
- Optional synchronisation function (BASIC+SYNC): Automatic voltage matching & synchronisation for generator paralleling with mains or other gensets.
- Multiple industrial communication: Ethernet Modbus‑TCP, RS485 Modbus‑RTU, USB and CAN for SCADA integration and local commissioning.
- Built‑in data‑recorder & event‑logger: Capture disturbance waveform and fault history for post‑fault analysis.
- Wide‑range power‑supply adaptability: Works under low residual‑voltage condition for generator start‑up and heavy‑grid‑disturbance scenarios.
Application Fields
‑ Small‑medium thermal‑power plants: Synchronous‑generator excitation control ‑ Hydro‑power station: Compact hydro‑generator AVR solution ‑ Industrial captive power‑house: Multi‑genset parallel‑operation excitation control ‑ Diesel/gas gensets: CHP combined‑heat‑and‑power unit excitation regulation ‑ Marine & offshore power‑system: DNV‑certified generator excitation ‑ Retrofit‑maintenance projects: Replacement for legacy UNITROL series excitation systems
UNITROL1010
Product Advantages & Value
‑ All‑in‑one compact wall‑mount design, no extra rack required, reduces cabinet‑space occupation. ‑ Complete control, protection, synchronisation and communication functions integrated, minimises auxiliary hardware. ‑ Wide‑voltage‑range power input adapts to various on‑site auxiliary‑power conditions. ‑ DNV marine certification supports offshore and ship‑board generator projects. ‑ CMT1000 PC‑tool provides convenient parameter tuning, firmware update and fault‑log export.
Compatible System & Interface Description
‑ Supported machine：Synchronous generators / synchronous motors up to 80 MVA, brushless excitation system ‑ Configuration‑Tool：CMT1000 engineering software for parameter setup, firmware upgrade, disturbance‑record analysis ‑ Wiring：Screw‑plug terminals for power, measurement signal, digital‑I/O and communication ‑ Version note：LIGHT / BASIC / BASIC+SYNC share same hardware; function enabled by software licence.
Related Recommended Products
- UNITROL1020: Higher‑power 20 ADC excitation controller (same form‑factor as 1010)
- UNITROL1000‑PM40: 40 A power‑expansion module for higher excitation‑current demand
- CMT1000 configuration software: Official commissioning tool for UNITROL‑1000 family
- UNS0121‑A‑Z,V1: External I/O extension module
- UNITROL1010‑0004 BASIC+SYNC：Version with synchronisation function
- Red‑special‑USB‑cable: Service‑cable for local USB connection without auxiliary‑powereero
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