ABB UNITROL ® 5000 excitation system

Additional software features

Application Function Blocks: In addition to standard software functions, there are various general application function blocks, such as input/output extensions, specific monitoring functions, etc.

Power System Stabilizer (PSS): Provides three types of PSS2A, Adaptive Power System Stabilizer (APSS), and Multi Band Power System Stabilizer (MBPSS) that comply with IEEE standards.

Rotating diode monitoring: It can detect short circuits or open circuits in the rotating rectifier branch of a brushless system over a wide speed range.

Communication and software tools

System communication 

Human computer interaction: The service panel SPA is connected to the system through RS485 interface, and the control panel LCP (optional) is connected through ARCnet bus, which can be used for local or remote control.

Advanced control system integration: Communication with advanced control systems is achieved through appropriate bus couplers (connected to DDCS interfaces via optical links), supporting standard protocols such as MODBUS, MODBUS+, Profibus, etc.

Remote diagnosis: With the optional remote diagnosis function, ABB service personnel can access the system through the Internet with the customer's permission.

Debugging and maintenance software tools

GAD tool: also known as "Graphic Application Designer", is a PC software tool used for application programming, with functions such as application programming, creating and modifying program documents.

CMT tool: a debugging and maintenance tool that can modify application programs, monitor system functions, change parameter values, and also has multiple window functions such as trend display, application display, parameter and signal display.

AVRView remote diagnosis

Additional CAP boards need to be inserted for each voltage regulator channel, which can be connected to a local area network (LAN) or telephone network through Ethernet cables to achieve functions such as operation status display, signal and parameter display, parameter change, etc., making remote diagnosis as convenient as on-site service.

System advantages

Modular structure design, easy to assemble and expand, can quickly meet different needs.

High redundancy design, including regulator redundancy and power converter redundancy, significantly improves the availability and reliability of the system.

Powerful communication capabilities, supporting multiple protocols and remote operation and diagnosis, facilitating system integration and maintenance.

Rich software functions and tools enable precise control, comprehensive monitoring, and efficient debugging and maintenance.