The REF 543 feeder terminal is designed for protection, control, measurement

and supervision in medium voltage networks The REF 543 feeder terminal can

be used with different kinds of switchgear, including single busbar, double busbar

and duplex systems.

The protection functions also support different types of networks, such as, isolated

neutral networks, resonant-earthed networks and partially earthed networks. 

The application area also covers medium-sized three phase asynchronous motors

as well as protection and control of shunt capacitor banks used for reactive power

compensation. 

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