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Calculation of 1 phase fault for Siemens 7SA612

Calculation of 1 phase fault for Siemens 7SA612

Calculation of 1 phase fault for Siemens 7SA612

(OP)
Hello! I have to check one Siemens distance protection, and i have order with settings. For me is difficult to find the way which this protection is calculating impedance durin one phase fault. I try to find any explaniation in Siemens manuals but i still can't understand the way of calculating. Can someone explain me how this protection working during one phase fault?

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