Power supply - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 11.04.2023

RET615 Product Guide

Table 1. Power supply
Description Type 1 Type 2
Nominal auxiliary voltage U n 100, 110, 120, 220, 240 V AC, 50 and 60 Hz 24, 30, 48, 60 V DC
48, 60, 110, 125, 220, 250 V DC
Maximum interruption time in the auxiliary DC voltage without resetting the relay 50 ms at U n
Auxiliary voltage variation 38...110% of U n (38...264 V AC) 50...120% of U n (12...72 V DC)
80...120% of U n (38.4...300 V DC)
Start-up threshold 19.2 V DC (24 V DC × 80%)
Burden of auxiliary voltage supply under quiescent (P q)/operating condition

DC <13.0 W (nominal)/<18.0 W (max.)

AC <16.0 W (nominal)/<21.0 W (max.)

DC <13.0 W (nominal)/<18.0 W (max.)

Ripple in the DC auxiliary voltage Max 15% of the DC value (at frequency of 100 Hz)
Fuse type T4A/250 V