Feeder protection and control REF630

REF630 has been designed to protect overhead line and cable feeders in utility

and industrial power distribution systems, including radial, looped and meshed

distribution networks, with or without distributed power generation.

Product highlights

• Extensive earth-fault protection portfolio with

unique multifrequency admittance-based

protection for higher sensitivity and selectivity

• Advanced and fast fault location of short

circuits and earth faults

REF630 also includes a fault locator that locates

short circuits in radial distribution networks and

earth faults in effectively and low-resistance

earthed ones. If the fault current is as high as or

higher than the load current, earth faults in

isolated neutral distribution networks will also

be located.