REF611 Product Guide - Back-up protection - Busbar differential protection (high impedance) - Busbar protection (voltage and frequency) - Feeder protection - Generator protection - Grid automation - Motor protection - Transformer protection - 2 winding - Product Guide - 611 series Relion Protection and Control - REF611 Feeder Protection and Control - 2.0 - ANSI - IEC

REF611_pg_757468_ENf.pdf