Description
- Model: UNITROL1010 3BHE035301R0004
- Brand: ABB
- Series: ABB UNITROL 1000 Excitation Control Series
- Core Function: Stabilize generator voltage via precise automatic excitation regulation
- Type: Generator AVR Excitation Controller
- Key Specs: Wide AC/DC input, 10A max excitation current, Ethernet communication
- Supply Status: In Stock
- Stock: Available
- Warranty: 12 months
- Ship From: China

ABB UNITROL1010 3BHE035301R0004
Product System Introduction
The ABB UNITROL1010 3BHE035301R0004 is a compact, high-performance automatic voltage regulator (AVR) designed for synchronous generators and motors up to 80MVA, serving as the core control unit of modern static excitation systems. As a key member of ABB’s renowned UNITROL 1000 excitation series, it integrates advanced digital control technology and industrial-grade hardware architecture, perfectly replacing traditional analog excitation regulation equipment. This controller can be seamlessly embedded into generator excitation cabinets, matching perfectly with excitation power units, sensor acquisition modules and upper power monitoring systems to form a complete closed-loop excitation control system. Widely applicable in hydropower, thermal power, diesel generator sets, marine power systems and industrial self-owned power plants, it provides stable voltage regulation and reactive power control guarantee for power generation equipment. It is also a mainstream spare part for daily maintenance, equipment renovation and performance upgrading of old generator excitation systems in various power scenarios.
Product Functions
This intelligent digital excitation controller integrates comprehensive voltage regulation, power control, equipment protection and data monitoring functions, covering all core operation demands of synchronous generator sets. Its core automatic voltage regulation function features ultra-high control accuracy within ±0.5%, which can monitor generator terminal voltage in real time and dynamically adjust excitation current to offset grid load fluctuations and maintain stable output voltage. It supports multiple control modes including reactive power regulation and power factor regulation, realizing automatic distribution and balanced output of generator reactive power to optimize power grid operation quality. Equipped with rich configurable digital and analog I/O channels, it can collect on-site generator operating parameters and status signals, and execute interlock control and protection actions. Built-in multiple limit protection logics such as over-excitation, under-excitation and over-current protection effectively prevent generator equipment failure caused by abnormal operating conditions. In addition, it supports Ethernet fieldbus communication and professional CMT1000 software debugging, enabling remote parameter configuration, real-time data upload and fault log recording, facilitating intelligent operation and maintenance of power generation systems.

ABB UNITROL1010 3BHE035301R0004
Product Features
ABB UNITROL1010 3BHE035301R0004 stands out with ultra-high regulation accuracy, strong scenario adaptability and excellent operational reliability, fully meeting the long-term stable operation requirements of power generation equipment. Adopting dual-processor independent control architecture with separate communication and control processing units, it ensures fast response and stable operation of regulation logic without mutual interference. It supports wide-range AC/DC universal power input, with strong tolerance to on-site power fluctuation and transient voltage impact, adapting to complex power supply environments of various power stations. The compact integrated industrial structure features dust-proof, anti-vibration and electromagnetic interference resistance design, stably operating in a temperature range of -20°C to +50°C, suitable for harsh industrial and marine working conditions. It supports flexible function configuration and customized logic editing, which can adapt to different capacity generator sets and diverse working condition requirements. With excellent backward compatibility and expandability, it supports single-unit independent operation and multi-unit parallel redundant configuration, effectively improving system fault tolerance. Featuring low failure rate, convenient debugging and low maintenance cost, it is the ideal choice for new power station construction and old excitation system renovation.

ABB UNITROL1010 3BHE035301R0004
Compatible & Recommended Products
To build a complete and high-stability generator excitation control system, we recommend matched ABB supporting products: ABB excitation power rectifier module, generator voltage and current signal acquisition sensors, and dedicated CMT1000 debugging software. These supporting accessories achieve seamless functional matching and data synchronization with UNITROL1010 3BHE035301R0004, further optimizing excitation regulation accuracy and system linkage stability, and ensuring safe, stable and efficient grid-connected operation of generator sets.
