![background image](http://html1.mh-extra.com/html/abb/rec650-ansi/rec650-ansi_applications-manual_3390438130.webp)
The function can be set
Enabled/Disabled
with the setting of
Operation
.
With the setting
OpModeSel
the principle of directional function is chosen.
With
OpModeSel
set to
3I0cosfi
the current component in the direction equal to the
characteristic angle
RCADir
has the maximum sensitivity. The characteristic for
RCADir
is equal to 0° is shown in figure
.
-3V
0
=V
ref
3I
0
RCA = 0
°,
ROA = 90
°
= ang(3I
0
) - ang(3V
ref
)
3I
0
cos
en06000648_ansi.vsd
V
ref
ANSI06000648 V1 EN
Figure 54:
Characteristic for RCADir equal to 0°
The characteristic is for
RCADir
equal to -90° is shown in figure
Section 6
1MRK 511 286-UUS A
Current protection
124
Application manual
Содержание REC650 ANSI
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