Protection relay for distribution feeders, transformers and generators, transmission line backup, and BCU (bay control unit). IEC 61850 Certified ed 2.

The IRF is applicable in any substation scheme, from single / double bus, to ring-bus or breakerand- a-half substations. The IRF protection functions are suitable for any neutral configuration, solid-grounded, resistor-grounded, Petersen coil compensated, and isolated. Depending on the IRF model, it is applicable to three-pole and single-pole circuit breakers.