ABB UNITROL® 1000 FLEX System Standard Controller for Synchronous Motors

UNITROL® 1000 FLEX systems are pre-packaged solutions for applications requiring single or dual channel controllers. All systems come standard with the UNITROL® 1020 FULL, utilizing the best solution for the best price and flexible project adjustment limits.

After a quick transition to standard applications, the solution is gathering all the functionality required for excitation systems. The pre-packaged solution allows you to design the excitation system in the most flexible and cost-oriented way.

All versions are designed on a common mechanical basis with various IO and power mode options.

The system is available as a single- or dual-channel UNITROL 1020 FULL device.

By integrating the most complete product in ABB's excitation portfolio, the standard system is ideally suited for integration into your control cabinet.

UNITROL 1020 FULL Features

All regulation types available: AVR/FCR/PF/VAR/Limiter

Automatic synchronization

MODBUS TCP communication

Rotating diode monitoring (RDM)

Reactive load distribution via RS48

Product Description

With the rapid transition to standard applications, this solution brings together all the functionality required for excitation systems. The pre-packaged solution allows you to design your excitation system in the most flexible and cost-effective way.

All versions are designed on a common mechanical basis and offer different input/output and power supply mode options.

The systems are available as single or dual channel UNITROL1020 FULL devices. By integrating the most complete range of products from ABB's excitation portfolio, the standard system can be perfectly integrated into your control cabinet.

Why to choose ABB’s UNITROL 1000 FLEX Systems:

 • UNITROL 1020 FULL functionalities

 • All regulation types available: AVR/FCR/PF/ VAR/Limiters

 • Automatic synchronization

 • MODBUS TCP Communication

 • Rotating Diode Monitoring (RDM)

 • Reactive Load Sharing via RS485

Single or dual channel controllers: the main benefit of a dual channel system is its lower failure rate. The changeover from one channel to the second channel is done automatically and bumplessly thanks to UNITROL 1000 technology. This guarantees higher availability of the overall system. It also allows you to stay online if one of the 

channels fails. While a single channel failure would cause a trip of the system, the dual channel controller allows you to find root cause and fix issue whilst the system stays running.

Full redundancy: in dual channel applications both the channels have independent power supply and allow to be fully redundant in the operation.

Gride code compliant product:

• Many aging units require to be updated to newer standards.

• When PSS is required by the Grid Authority, UNITROL 1000 has the integrated PSS as an option for both systems and devices. Meaning you are not required to use any additional device to ensure compliancy with the requirements.

• The UNITROL 1000 FLEX System is supporting an alternative excitation power supply which will keep the synchronous generator online in case of a network fault.

Premounted and tested systems: all systems are already mounted, wired and tested when leaving our factory. The systems can be mounted into existing or new cabinets easily. This reduce the engineering and commissioning time, but still offers later configuration on-site by simple configuration and editable documentation.