Siemens SINAMICS S120 Engineering Manual page 27

1 Engineering SINAMICS S120 Booksize
Calculating the relative line short-circuit power RSC at the converter connection point
The short-circuit power at the connection point IPC is:
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The relative short-circuit power at the connection point IPC is therefore:
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Further, the expected short-circuit currents at connection point IPC can be determined:
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2
Engineering manual S120 Booksize
Entry-ID: 109808992, V1.0, 04/2022
1.1
+�� +�� +��
����−���������� �������� ���������������������� ����−���������� ����−����������
= 57
10.973
= kA
= 9.503 kA
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= 7.603 MVA
27