ABB Relion 670 Series REL670 Commissioning Manual page 158

Section 10
Testing functionality by secondary injection
152
IEC06000650 V2 EN
Figure 34: Characteristic with ROADir restriction
RCADir
3I
0
Operate area
j
-
3 × j
I cos
0
ROADir
Line distance protection REL670 2.1 IEC
1MRK 506 355-UEN A
o
=
0
=
3 U U
0 ref
IEC06000650_2_en.vsd
Commissioning manual