Siemens Argus 7SR22 - Under Current

7SR220 Settings Guide
Unrestricted Page 32 of 107 © 2013 Siemens Protection Devices Limited
3.4.9. Under Current
Description Range Default
Gn 37 U/I Guard Setting 0.05, 0.1 ... 4.95, 5 0.1 xIn
3.4.9.1. 37-1
Description Range Default
Gn 37-1 Element
Phase under current element 37-1
Disabled, Enabled Disabled
Gn 37-1 Setting
Pickup level
0.05, 0.1 ... 4.95, 5 0.25 xIn
Gn 37-1 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s
Gn 37-1 U/I Guarded
Selects whether to use the 37-1 guard element
No, Yes Yes
Gn 37-1 Start Option
Selects whether 31-1 element operates for any phase picked
up or only when all phases are picked up
All, Any All
3.4.9.2. 37-2
Description Range Default
Gn 37-2 Element
Phase under current element 37-2
Disabled, Enabled Disabled
Gn 37-2 Setting
Pickup level
0.05, 0.1 ... 4.95, 5 0.25 xIn
Gn 37-2 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s
Gn 37-2 U/I Guarded
Selects whether to use the 37-2 guard element
No, Yes Yes
Gn 37-2 Start Option
Selects whether 31-2 element operates for any phase picked
up or only when all phases are picked up
All, Any All
3.4.9.3. 37G-1
Description Range Default
Gn 37G-1 Element
E/F under current element 37G-1
Disabled, Enabled Disabled
Gn 37G-1 Setting
Pickup level
0.005, 0.006 ... 4.995, 5 0.2 xIn
Gn 37G-1 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s
3.4.9.4. 37G-2
Description Range Default
Gn 37G-2 Element
E/F under current element 37G-2
Disabled, Enabled Disabled
Gn 37G-2 Setting
Pickup level
0.005, 0.006 ... 4.995, 5 0.2 xIn
Gn 37G-2 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s