Undercurrent; Reference; Operate And Reset Level; Operate And Reset Time - Siemens 7SR12 Argus Manual

2.4

37 Undercurrent

Reference

2.4.1
Parameter
Is Setting
t Delay setting
d

Operate and Reset Level

2.4.2
Attribute
I Operate level
op
Reset level
Repeatability
-10 °C to +55 °C
Variation
f
nom

Operate and Reset Time

2.4.3
Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
©2017 Siemens Protection Devices Limited
Value
0.05, 0.10...5.0 xIn
0.00, 0.01...20.00, 20.10... 100, 101... 1000, 1010...
10000, 10100... 14400 s
± 5 %
Value
1.1 to 0.5 xIs: 35 ms, ± 10ms
t
± 1 % or ± 10ms
< 40 ms
< 60 ms
7SR11 & 7SR12 Performance Specification
Value
100 % Is, ± 5 % or ± 1% In
≤ 105 % I
op
± 1 %
≤ 5 %
≤ 5 %
, ± 1 % or ± 10ms
+ t
basic d
Chapter 3 Page 21 of 56