Three-Winding Hv/Mv1/Mv2, Y/Y/Δ-Transformer - ABB Relion 650 Series Applications Manual

1MRK 504 124-UEN B
Table 4:
Item
High voltage side system voltage (UN,HV)
Medium voltage side1 system voltage (UM1,HV)
Medium voltage side2 system voltage (UM2,HV)
Transformer rated power (SN)
On line tap changer
Short circuit power level infeed at HV-side
Short circuit power level infeed at MV1-side
Short circuit power level infeed at MV2-side
2.3.6 Three-winding HV/MV1/MV2, Y/Y/Δ-transformer
This application example is a three-winding HV/MV1/MV2, Y/Y/Δ-transformer with the
following properties:
• High voltage solidly earthed
• Medium voltage 1 solidly earthed
• Medium voltage 2 solidly earthed
IEC09000438 V1 EN-US
Figure 9:
Table 5:
Item
High voltage side system voltage (UN,HV):
Medium voltage side1 system voltage (UM1,HV)
Medium voltage side2 system voltage (UM2,HV)
Transformer rated power (SN)
On line tap changer
Short circuit power level infeed at HV-side
Short circuit power level infeed at MV1-side
Short circuit power level infeed at MV2-side
Transformer protection RET650
Application manual
Typical data for the transformer application
3
Three-winding HV/MV1/MV2, Y/Y/Δ-transformer; HV:solidly earthed,
MV1:solidly earthed, MV2:solidly earthed
Typical data for the transformer application
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Data
110 – 400 kV
11 – 110 kV
11 – 110 kV
25 – 500 MVA
On the HV-side winding
500 – 10 000 MVA
0 – 5 000 MVA
0 – 5 000 MVA
RET650
1
3
3
1
Data
110 – 400 kV
11 – 110 kV
11 – 110 kV
25 – 500 MVA
On the HV-side winding
500 – 10 000 MVA
0 – 5 000 MVA
0 – 5 000 MVA
GUID-3609AB10-D5E9-4D7F-B0C6-CC7B7DFF3565 v2
1
3
1
3
.
IEC09000438_1_en.vsd
Section 2
Application
29