Siemens 7SR12 Argus User Manual

7SR11 & 7SR12 Performance Specification
©2017 Siemens Protection Devices Limited Chapter 3 Page 21 of 56
2.4 37 Undercurrent
2.4.1 Reference
Parameter Value
Is
Setting
0.05, 0.10…5.0 xIn
t
d
Delay setting
0.00, 0.01…20.00, 20.10… 100, 101… 1000, 1010…
10000, 10100… 14400 s
2.4.2 Operate and Reset Level
Attribute
Value
I
op
Operate level
100 % Is, ± 5 % or ± 1% In
Reset level
≤ 105 % I
op
Repeatability
± 1 %
Variation
-10 °C to +55 °C
≤ 5 %
f
nom
± 5 %
≤ 5 %
2.4.3 Operate and Reset Time
Attribute Value
t
basic
Element basic operate time
1.1 to 0.5 xIs: 35 ms, ± 10ms
t
op
Operate time following delay
t
basic
+ t
d
, ± 1 % or ± 10ms
Repeatability
± 1 % or ± 10ms
Overshoot time < 40 ms
Disengaging time < 60 ms

Siemens 7SR12 Argus Specifications

General

Brand	Siemens
Model	7SR12 Argus
Category	Protection Device
Language	English