Earth faults are causing a majority of all failures in power distribution networks. With the latest version of the Relion
® 615 series protection and control IEDs, ABB offers the most versatile earth-fault protection functions to fulfill diverse customer requirements globally.
Relion REF615 feeder IEDs and RED615 line-differential IEDs feature directional or non-directional earth-fault protection, sensitive earth-fault protection and transient or intermittent earth-fault protection. In addition, the IEDs incorporate admittance-based, wattmetric-based or harmonics-based earth-fault protection as an option.
Familiarize yourselves with the full potential of the Relion 615 series IEDs