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6 F 2 S 0 8 5 7
HOC-A
HOC-B
HOC-C
2F-Lock
+
DIF-A
DIF-B
DIF-C
2F-A
2F-B
2F-C
5F-A
5F-B
5F-C
&
&
&
&
5F-Lock
+
DIFT
&
&
&
&
&
1
≥1
1
≥1
1
≥1
41
42
43
44
45
46
97
96
95
98
99
100
&
&
&
≥1
≥1
≥1
DIF
121
Phase A
Phase B
Phase C
[Operating phase]
1REF
Phase N
Faulted phase
selection logic
[Faulted phase]
& ≥1
≥1
1REF1
+
1REF5
+
2REF
&
≥1
2REF1
+
2REF5
+
3REF
&
≥1
3REF1
+
3REF5
+
Note: Models 203 and 204 are not provided with 1REF-4,
1REF-5, 2REF-4, 2REF-5, 3REF-4 and 3REF-5.
&
≥1
Figure 2.2.1.4 Operating Phase and Faulted Phase Selection Logic