Toshiba GRB200 Instruction Manual page 16

<Case: Two CHs assigned at coupler/section>
Figure 2.1-10 illustrates the case about two CHs (CHn and CHm) assignment.

Area is divided by two CHs: CHm area and CHn area. Remind that CH settings are

required for the both, as show in Figure 2.1-11.
Busbar-A
DS
-A
CH
m
CB
n
CH
DS
-B
Busbar-B
Figure 2.1-10 Example of two CHs
assignment
<Case: Single CH assigned at coupler/section>
Figure 2.1-13 illustrates the case about single CH assignment.

The user has to have forward settings and reverse setting carefully with the

consideration of CT polarity.
Busbar-A
DS
-A
CB
DS
-B
Busbar-B
Figure 2.1-13 Example of
single CH assignment
Figure 2.1-11 Covered area and settings
Busbar-A
DS
-A
CB
Forward
Reverse
DS
-B
Busbar-B
Figure 2.1-12 Settings in single CH
assignment
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6F2S1923 (0.03)
Setting item Setting
Zone1_CH*
X
Zone2_CH*
Non
Zone3_CH*
Non
ZoneR1_CH*
X
Zone-NoDIF_CH*
Non
CB_CH*
X
DS11_CH*
X
DS12_CH*
Non
DS13_CH*
Non
DS21_CH*
X
Line1_CH*
--
Line2_CH*
--
Line3_CH*
--
CT-Pos_CH*
--
ZACbyCB_CH*
X
GRB200C (Replica)