Operate And Reset Time; 46Nps Negative Phase Sequence Overcurrent; Reference (46Dt); Operate And Reset Level (46Dt) - Siemens Argus 7SR21 Technical Manual

2.7

46NPS Negative Phase Sequence Overcurrent

2.7.1

Reference (46DT)

Parameter
I Setting
s
t Delay setting
d
2.7.2

Operate and Reset Level (46DT)

Attribute
I Operate level
op
Reset level
Repeatability
Transient overreach
(X/R £ 100)
Variation
2.7.3

Operate and Reset Time (46DT)

Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
2.7.4

Reference (46IT)

Parameter
char Characteristic setting
Tm Time Multiplier setting
I Setting
s
I Applied Current (for operate time) IDMTL
t Delay setting
d
t Reset setting
res
Unrestricted © 2013 Siemens Protection Devices Limited
-10 °C to +55 °C
f - 3 Hz to f + 2 Hz
nom nom
7SR21 & 7SR22 Performance Specification
Value
0.05, 0.06... 4.0xIn
0.00, 0.01...20.00, 20.50... 100, 101... 1000, 1010...
10000, 10100... 14400 s
Value
100 % Is, ± 5 % or ± 1% In
³ 95 % I
op
± 1 %
£ -5 %
£ 5 %
£ 5 %
Value
Switched from 0 to 2 xIs: 40 ms, ± 10 ms
Switched from 0 to 5 xIs: 30 ms, ± 10 ms
, ± 1 % or ± 10 ms
t + t
basic d
± 1 % or ± 10 ms
<40 ms
< 60 ms
Value
IEC-NI, -VI, -EI, -LTI; ANSI-MI, -VI, -EI; DTL
0.025, 0.050 ... 1.6
0.05, 0.06... 2.5xIn
2 to 20 x Is
0, 0.01... 20 s
ANSI DECAYING, 0, 1... 60 s
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