Siemens 7SR51 - Settings Menu

Element Setting Values
27-1 U/V Guarded Yes
27-1 VTS Inhibit Yes
27-1 O/P Phases All
27-2 Element Enabled
27-2 Setting 77 V
27-2 Hysteresis 3 %
27-2 Delay 1 s
27-2 UV Guarded Yes
27-2 VTS Inhibit Yes
27-2 O/P Phases All
Settings Menu
Functions > Function Config
Parameter Range Settings
Default Gn1 Gn2 Gn3 Gn4
27 Undervoltage Enabled
Disabled
Disabled
Functions > Protection > 27 > Gn 27 Common
Parameter Range Settings
Default Gn1 Gn2 Gn3 Gn4
Input Selection Ph-Ph
Ph-N
Ph-Ph
UV Guard Setting 1 to 200 V, Δ 0.5 V 5 V
Functions > Protection > 27 > Gn 27-n
Parameter Range Settings
Default Gn1 Gn2 Gn3 Gn4
Element Enabled
Disabled
Disabled
Setting 5 to 200 V, Δ 0.5 V 80 V
Hysteresis 0 to 80 %, Δ 0.1 % 3 %
Delay 0 to 20 s Δ 0.01 s
20 to 100 s Δ 0.1 s
100 to 1000 s Δ 1 s
1000 to 10000 s Δ 10 s
10000 to 14400 s Δ 100 s
0.1 s
VTS Inhibit No
Yes
No
UV Guard Inhibit No
Yes
Yes
Pickup Option Any
All
Any
5.2.5
Protection and Automation Functions
5.2 27 Undervoltage Protection – 3-Phase
154 Reyrolle 7SR5, Overcurrent Protection Device, Device Manual
C53000-G7040-C014-1, Edition 11.2019