Functions

REF542plus Multifunction Protection and Switchbay Control Unit integrates all the secondary functions in a single unit. This multifunctional unit also features a self monitoring function. All functions are designed as freely configurable software modules. Therefore, a wide range of operation requirements in MV stations can be met without any problems. The versatility of the software makes it possible to use the REF542plus on every switchboard independent on the specific application required.

Configuration

Each application for protection and control can easily be configured by software function modules, which make arbitrary definition of the following features as part of the secondary system possible:

LED’s (meaning and colors) for local indication

Single Line diagram to show the status of switching devices

Protection schemes

Control schemes

Interlocking schemes

Automation sequences

All functions in the switchbay can be specified in collaboration with ABB. The result of the configuration is saved and delivered together with the switchboard to the users. By using the “FUnctional block” Programming LAnguage (FUPLA) the REF542plus Multifunction Protection and Switchbay Control Unit offers engineers, especially those who are not software experts, the opportunity of easily updating the operation and handling of the switchbay.