Underpower protection (DUPPDPR) - Arc protection - Merging unit - Motor protection - Product Guide - REM620 Motor Protection and Control - Relion Protection and Control - 2.0 FP1 IEC - IEC - 01.06.2023

REM620 Product Guide

Table 1. Underpower protection (DUPPDPR)
Characteristic Value
Operation accuracy 1

Depending on the frequency of the measured current and voltage:

f = f n ±2 Hz

Power measurement accuracy ±3% of the set value or ±0.002 × S n

Phase angle: ±2°

Start time 2, 3 Typically 45 ms
Reset time Typically 30 ms
Reset ratio Typically 1.04
Operate time accuracy ±1.0% of the set value of ±20 ms
Suppression of harmonics -50 dB at f = n × f n, where n = 2, 3, 4, 5,…
1 Measurement mode = “Pos Seq” (default)
2 U = U n, f n = 50 Hz, results based on statistical distribution of 1000 measurements
3 Includes the delay of the signal output contact