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50-P3
50P(2)
87L
PCS
BLOCK
UNBLOCK
UNBLOCK
50P(1)
51P
50-P3
50P(2)
87L
PCS
BLOCK
UNBLOCK
UNBLOCK
50P(1)
51P
51P
50P(1)
50-P3
RED 615
RED 615
RED 615
GUID-55C38CA8-1D7D-4CBC-A555-E38B024FF2BA V1 EN
Figure 242:
Protection communication supervision detects failures on
communication
In-zone transformer
20kV
300A/1
1500A/1
PROTECTED
ZONE
110kV
Yd11
40MW
HV
LV
L
~
RED 615
RED 615
GUID-52FC4852-C9D1-4DD1-B2D7-62FCE98B7FD7 V2 EN
Figure 243:
In-zone transformer example about CT ratio correction calculation
The CT ratio correction calculation starts with the rated load current calculation for HV
and LV sides. The rated load current is defined as the rated power of the transformer
Section 4
1MAC059074-MB A
Protection functions
492
615 series ANSI
Technical Manual
Содержание Relion 615 series
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