7SR220 Settings Guide
Unrestricted Page 22 of 107 © 2013 Siemens Protection Devices Limited
Description Range Default
Gn 51N-4 Inrush Action
Selects if the 51N-4 element is blocked from operating when
2nd Harmonic Inrush Detector operates
Off, Inhibit Off
3.4.4.5. 50N-1
Description Range Default
Gn 50N-1 Element
Selects whether the DTL derived Earth fault element is
enabled
Disabled, Enabled Disabled
Gn 50N-1 Dir. Control
Selects whether 50N-1 element is non-directional, forward or
reverse
Non-Dir, Forward, Reverse Non-Dir
Gn 50N-1 Setting
Pickup level
0.05, 0.06 ... 49.5, 50 0.5 xIn
Gn 50N-1 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0s
Gn 50N-1 VTS Action
Selects whether 50N-1 element is blocked or made non-
directional when VTS operates
Off, Inhibit, Non-Dir Off
Gn 50N-1 Inrush Action
Selects if the 50N-1 element is blocked from operating when
2nd Harmonic Inrush Detector operates
Off, Inhibit Off
3.4.4.6. 50N-2
Description Range Default
Gn 50N-2 Element
Selects whether the DTL derived Earth fault element is
enabled
Disabled, Enabled Disabled
Gn 50N-2 Dir. Control
Selects whether 50N-2 element is non-directional, forward or
reverse
Non-Dir, Forward, Reverse Non-Dir
Gn 50N-2 Setting
Pickup level
0.05, 0.06 ... 49.5, 50 0.5 xIn
Gn 50N-2 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s
Gn 50N-2 VTS Action
Selects whether 50N-2 element is blocked or made non-
directional when VTS operates
Off, Inhibit, Non-Dir Off
Gn 50N-2 Inrush Action
Selects if the 50N-2 element is blocked from operating when
2nd Harmonic Inrush Detector operates
Off, Inhibit Off
3.4.4.7. 50N-3
Description Range Default
Gn 50N-3 Element
Selects whether the DTL derived Earth fault element is
enabled
Disabled, Enabled Disabled
Gn 50N-3 Dir. Control
Selects whether 50N-3 element is non-directional, forward or
reverse
Non-Dir, Forward, Reverse Non-Dir
Gn 50N-3 Setting
Pickup level
0.05, 0.06 ... 49.5, 50 0.5 xIn
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