![ABB REC650 ANSI Technical Manual Download Page 128](http://html.mh-extra.com/html/abb/rec650-ansi/rec650-ansi_technical-manual_2772128.webp)
-3V
0
=V
ref
3I
0
RCA = 0
°
3I
0
cos
Operate area
ROA
en06000650_ansi.vsd
ANSI06000650-2-
vsd
V
ref
=-
3V
o
ANSI06000650 V2 EN
Figure 46:
Characteristic with ROADir restriction
The function indicates forward/reverse direction to the fault. Reverse direction is defined
as 3I
0
·cos (φ + 180°) ≥ the set value.
It is also possible to tilt the characteristic to compensate for current transformer angle error
with a setting
RCAComp
as shown in the figure
:
Section 6
1MRK 511 287-UUS A
Current protection
122
Technical manual
Summary of Contents for REC650 ANSI
Page 1: ...Relion 650 series Bay control REC650 ANSI Technical manual ...
Page 2: ......
Page 42: ...36 ...
Page 60: ...54 ...
Page 66: ...60 ...
Page 424: ...418 ...
Page 566: ...560 ...
Page 636: ...630 ...
Page 699: ...693 ...