Frequency measurement (FMMXU) - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - 5.0 FP1 IEC - IEC - 09.02.2023

Table 1. Frequency measurement (FMMXU)

Characteristic		Value
Operation accuracy		±5 mHz (in measurement range 35...75 Hz)