Siemens Siprotec 7UM611 Manual page 99

Multi-functional generator protection relay 7um61 series
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This results to a 70 % reach for zone 1:
The following secondary side setting value of zone 1 results at address 3306 ZONE
Z1:
Note: The following ratio would result from the connection of a 5 A device to a 5 A
current transformer:
Likewise the following primary reactance results for a 100 % reach for zone 2:
7UM61 Manual
C53000-G1176-C127-3
2.14 Impedance Protection (ANSI 21)
99

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