Two-Winding Hv/Mv, Y/Y-Transformer; Functionality Table - ABB Relion 650 Series Applications Manual

Section 2
Application
Table 1:
Item
High voltage side system voltage (UN,HV)
Medium voltage side system voltage (UM,HV)
Transformer rated power (SN)
On line tap changer
Short circuit power level infeed at HV-side
Short circuit power level infeed at MV-side
2.3.3

Two-winding HV/MV, Y/Y-transformer

This application example is a two-winding HV/MV Y/Y-transformer with the following
properties:
• High voltage solidly earthed
• Medium voltage high impedance earthed
IEC09000436 V1 EN-US
Figure 7:
Table 2:
Item
High voltage side system voltage (UN,HV)
Medium voltage side system voltage (UM,HV)
Transformer rated power (SN)
On line tap changer
Short circuit power level infeed at HV-side
Short circuit power level infeed at MV-side
2.3.4

Functionality table

The proposal for functionality choice for the different application cases are shown in table 3.
In the table the recommendations has the following meaning:
On: It is recommended to have the function activated in the application
26
Typical data for the transformer application
3
Two-winding HV/MV, Y/Y-transformer; HV:solidly earthed, MV:high
impedance earthed
Typical data for the transformer application
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Data
110 – 220 kV
11 – 110 kV
15 – 150 MVA
On the HV-side winding
500 – 10 000 MVA
0 – 5 000 MVA
RET650
Ph-Ph
1 1
3
1
1
Data
110 – 220 kV
11 – 110 kV
15 – 150 MVA
On the HV-side winding
500 – 10 000 MVA
0 – 5 000 MVA
1MRK 504 124-UEN B
GUID-4A48D163-01B3-4064-9AF6-B4527B6414D2 v2
IEC09000436-1-en.vsd
GUID-4AE903A3-DD30-49DD-B368-23B17BAE35F8 v2
Transformer protection RET650
Application manual