7SR10 Performance Specification
© 2018 Siemens Protection Devices Limited
Chapter 3 Page 51 of 52
3.5 74TCS & 74CCS Trip & Close Circuit Supervision
3.5.1 Reference
Parameter
Value
t
d
Delay setting
0, 0.02…60 s
3.5.2 Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time
30 ms
±
10 ms
t
op
Operate time following delay
t
basic
+ t
d
,
±
1 % or
±
10 ms
Repeatability
±
1 % or
±
10 ms
Variation
-10 °C to +60 °C
≤
5 %
f
nom
± 5 %
≤
5 %
3.6 81HBL2 Inrush Detector
3.6.1 Reference
Parameter
Value
I
Setting
(Ratio of 2
nd
Harmonic current to
Fundamental component current)
0.10, 0.11... 0.5
3.6.2 Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time
Will pick-up before operation of any protection element due
to magnetic inrush
Reset Time
Will operate until drop-off of any protection element due to
magnetic inrush
NOTE:
Fundamental current should be minimum 0.1xIn for better inrush accuracy.
Содержание 7SR10 Argus Series
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