Siemens Argus 7SR21 - 50 Sef-1; 51 Sef-2

7SR210 Settings Guide
Unrestricted Page 16 of 61 © 2018 Siemens Protection Devices Limited
Description Range Default
Gn 51SEF-1 Reset
Selects between an ANSI decaying reset characteristic or DTL
reset
(ANSI) Decaying, 0 ... 59, 60 0 s
3.4.5.2. 51SEF-2
Description Range Default
Gn 51SEF-2 Element
Selects whether the 51SEF-2 IDMTL derived Earth Fault
element is enabled
Disabled, Enabled Disabled
Gn 51SEF-2 Setting
Pickup level
0.005, 0.006 ... 0.995, 1 0.2 xIn
Gn 51SEF-2 Char
Selects characteristic curve to be IEC or ANSI IDMTL or DTL
DTL, IEC-NI, IEC-VI, IEC-EI, IEC-
LTI, ANSI-MI, ANSI-VI, ANSI-EI
IEC-NI
Gn 51SEF-2 Time Mult (IEC/ANSI)
Time multiplier (applicable to IEC and ANSI curves but not
DTL selection)
0.025, 0.03 ... 1.595, 1.6 , 1.7 ...
4.9, 5, 6 ... 100
1
Gn 51SEF-2 Delay (DTL)
Delay (applicable only when DTL is selected for characteristic)
0, 0.01 ... 19.99, 20 5 s
Gn 51SEF-2 Min Operate Time
Minimum operate time of element.
0, 0.01 ... 19.99, 20 0 s
Gn 51SEF-2 Follower DTL
Additional definite time added after characteristic time
0, 0.01 ... 19.99, 20 0 s
Gn 51SEF-2 Reset
Selects between an ANSI decaying reset characteristic or DTL
reset
(ANSI) Decaying, 0 ... 59, 60 0 s
3.4.5.3. 50SEF-1
Description Range Default
Gn 50SEF-1 Element
Selects whether the DTL measured Earth fault element is
enabled
Disabled, Enabled Disabled
Gn 50SEF-1 Setting
Pickup level
0.005, 0.006 ... 4.995, 5 0.2 xIn
Gn 50SEF-1 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s
3.4.5.4. 50SEF-2
Description Range Default
Gn 50SEF-2 Element
Selects whether the DTL measured Earth fault element is
enabled
Disabled, Enabled Disabled
Gn 50SEF-2 Setting
Pickup level
0.005, 0.006 ... 4.995, 5 0.2 xIn
Gn 50SEF-2 Delay
Sets operate delay time
0, 0.01 ... 14300, 14400 0 s