Operation characteristics - Arc protection - Merging unit - Transformer protection - 2 winding - Product Guide - RET615 Transformer Protection and Control - Relion 615 series - 5.0 FP1 IEC - IEC - 09.02.2023

RET615 Product Guide

Table 1. Operation characteristics
Parameter Value (Range)
Operating curve type

1 = ANSI Ext. inv.

2 = ANSI Very. inv.

3 = ANSI Norm. inv.

4 = ANSI Mod inv.

5 = ANSI Def. Time

6 = L.T.E. inv.

7 = L.T.V. inv.

8 = L.T. inv.

9 = IEC Norm. inv.

10 = IEC Very inv.

11 = IEC inv.

12 = IEC Ext. inv.

13 = IEC S.T. inv.

14 = IEC L.T. inv

15 = IEC Def. Time

17 = Programmable

18 = RI type

19 = RD type

Operating curve type (voltage protection)

5 = ANSI Def. Time

15 = IEC Def. Time

17 = Inv. Curve A

18 = Inv. Curve B

19 = Inv. Curve C

20 = Programmable

21 = Inv. Curve A

22 = Inv. Curve B

23 = Programmable