81Hbl2 Inrush Detector; Reference; Operate And Reset Level; Operate And Reset Time - Siemens 7SR224 Technical Manual

3.7

81HBL2 Inrush Detector

3.7.1

Reference

Parameter
Setting
(Ratio of 2nd Harmonic current to
I
Fundamental component current)
3.7.2

Operate and Reset Level

Attribute
I Operate level
op
Reset level
Repeatability
-10 °C to +55 °C
Variation
f
nom
3.7.3

Operate and Reset Time

Attribute
t Element basic operate time
basic
Reset Time
©2010 Siemens Protection Devices Limited
Value
0.10, 0.11... 0.5
Value
100 % I, ± 4 % or ± 1% In
100 % I
± 1 %
≤ 5 %
+ 2 Hz ≤ 5 %
- 3 Hz to f
nom
Value
Will pick-up before operation of any protection element due
to magnetic inrush
Will operation until drop-off of any protection element due
to magnetic inrush
7SR224 Argus Performance Specification
, ± 4 % or ± 1% In
op
Chapter 3 Page 46 of 49