Siemens Argus 7SR21 Technical Manual page 239

7SR220 Settings Guide
Description
Gn 27/59 U/V Guard Setting
Selects voltage level below which the guard element is
applied.
3.5.2. 27/59-1
Description
Gn 27/59-1 Element
Selects whether the Under/Over voltage element stage 1 is
enabled
Gn 27/59-1 Operation
Selects between Undervoltage and Overvoltage pickup for this
element
Gn 27/59-1 Setting
Under or over voltage pickup level
Gn 27/59-1 Hysteresis
Sets the pickup to dropoff thresholds e.g. 3% on Overlevel
picks up above pickup setting and drops off below 97% of
setting, 3% on Underlevel picks up below setting and drops off
above 103% of setting
Gn 27/59-1 Delay
Sets operate delay time
Gn 27/59-1 U/V Guarded
Selects whether U/V Guard element can block the operation of
this element
Gn 27/59-1 VTS Inhibit
Selects whether element is blocked or not when VTS operates
Gn 27/59-1 O/P Phases
Selects whether element operates for any phase picked up or
only when all phases are picked up
3.5.3. 27/59-2
Description
Gn 27/59-2 Element
Selects whether the Under/Over voltage element stage 2 is
enabled
Gn 27/59-2 Operation
Selects between Undervoltage and Overvoltage pickup for this
element
Gn 27/59-2 Setting
Under or over voltage pickup level
Gn 27/59-2 Hysteresis
Sets the pickup to dropoff thresholds e.g. 3% on Overlevel
picks up above pickup setting and drops off below 97% of
setting, 3% on Underlevel picks up below setting and drops off
above 103% of setting
Gn 27/59-2 Delay
Sets operate delay time
Gn 27/59-2 U/V Guarded
Selects whether U/V Guard element can block the operation of
this element
Gn 27/59-2 VTS Inhibit
Selects whether element is blocked or not when VTS operates
Unrestricted Page 34 of 107
Range
1, 1.5 ... 199.5, 200
Range
Disabled, Enabled
Under, Over
5, 5.5 ... 199.5, 200
0, 0.1 ... 79.9, 80
0, 0.01 ... 14300, 14400
No, Yes
No, Yes
Any, All
Range
Disabled, Enabled
Under, Over
5, 5.5 ... 199.5, 200
0, 0.1 ... 79.9, 80
0, 0.01 ... 14300, 14400
No, Yes
No, Yes
© 2013 Siemens Protection Devices Limited
Default
5 V
Default
Disabled
Over
80 V
3 %
0.1 s
No
No
Any
Default
Disabled
Over
80 V
3 %
0.1 s
No
No