Restricted E/F; Nps Overcurrent; 46It; 46Dt - Siemens Argus 7SR21 Technical Manual

3.4.6.

Restricted E/F

Description
Gn 64H Element
High impedance restricted earth fault current element
Gn 64H Setting
Pickup level
Gn 64H Delay
Sets operate delay time
3.4.7.

NPS Overcurrent

3.4.7.1.

46IT

Description
Gn 46IT Element
Selects whether the 46IT IDMTL/DTL negative phase
sequence current element is enabled
Gn 46IT Setting
Pickup level
Gn 46IT Char
Selects characteristic curve to be IEC or ANSI IDMTL or DTL
Gn 46IT Time Mult (IEC/ANSI)
Time multiplier (applicable to IEC and ANSI curves but not
DTL selection)
Gn 46IT Delay (DTL)
Delay (applicable only when DTL is selected for characteristic)
Gn 46IT Reset
Selects between an ANSI decaying reset characteristic or a
definite time reset
3.4.7.2.

46DT

Description
Gn 46DT Element
Selects whether the 46DT INST/DTL negative sequence
current element is enabled
Gn 46DT Setting
Pickup level
Gn 46DT Delay
Sets operate delay time
Unrestricted ©2018 Siemens Protection Devices Limited
Range
Disabled, Enabled
0.005, 0.006 ... 0.945, 0.95
0, 0.01 ... 14300, 14400
Range
Disabled, Enabled
0.05, 0.06 ... 2.49, 2.5
DTL, IEC-NI, IEC-VI, IEC-EI, IEC-
LTI, ANSI-MI, ANSI-VI, ANSI-EI
0.025, 0.03 ... 1.595, 1.6 , 1.7 ...
4.9, 5, 6 ... 100
0, 0.01 ... 19.99, 20
(ANSI) Decaying, 0 ... 59, 60
Range
Disabled, Enabled
0.05, 0.06 ... 3.99, 4
0, 0.01 ... 14300, 14400
7SR210 Settings Guide
Default
Disabled
0.2 xIn
0 s
Default
Disabled
0.25 xIn
IEC-NI
1
5 s
0 s
Default
Disabled
0.1 xIn
0.02 s
Page 17 of 61