Siemens Argus 7SR21 Technical Manual page 227

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