Sampling frequencies - Arc protection - Motor protection - Feeder protection - Back-up protection - Technical Manual - REX610 Protection and control - Relion Protection and Control - 1.2 - IEC - ANSI - 03.05.2023

The sampling frequency of the disturbance recorder analog channels depends on the set rated frequency. One fundamental cycle always contains the number of samples set with the Storage rate parameter. Since the states of the binary channels are sampled once per task execution of the disturbance recorder, the sampling frequency of binary channels is 200 Hz at the rated frequency of 50 Hz and 240 Hz at the rated frequency of 60 Hz.

Table 1. Sampling frequencies of the disturbance recorder analog and binary channels

Storage rate (samples per fundamental cycle)	Recording length	Rated frequency = 50 Hz		Rated frequency = 60 Hz
		Sampling frequency of analog channels	Sampling frequency of binary channels	Sampling frequency of analog channels	Sampling frequency of binary channels
32	1 · Record length	1600 Hz	200 Hz	1920 Hz	240 Hz
16	2 · Record length	800 Hz	200 Hz	960 Hz	240 Hz
8	4 · Record length	400 Hz	200 Hz	480 Hz	240 Hz