74Tcs & 74Ccs Trip & Close Circuit Supervision; Reference; Operate And Reset Time; 81Hbl2 Inrush Detector - Siemens 7SR10 Argus Series Manual

3.5 74TCS & 74CCS Trip & Close Circuit Supervision
3.5.1

Reference

Parameter
t Delay setting
d
3.5.2

Operate and Reset Time

Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Variation
3.6

81HBL2 Inrush Detector

3.6.1 Reference
Parameter
Setting
nd
I (Ratio of 2 Harmonic current to
Fundamental component current)
3.6.2 Operate and Reset Time
Attribute
t Element basic operate time
basic
Reset Time
NOTE:
Fundamental current should be minimum 0.1xIn for better inrush accuracy.
© 2018 Siemens Protection Devices Limited
-10 °C to +60 °C
f ± 5 %
nom
Value
0, 0.02...60 s
Value
30 ms ± 10 ms
t + t , ± 1 % or ± 10 ms
basic d
± 1 % or ± 10 ms
≤ 5 %
≤ 5 %
Value
0.10, 0.11... 0.5
Value
Will pick-up before operation of any protection element due
to magnetic inrush
Will operate until drop-off of any protection element due to
magnetic inrush
7SR10 Performance Specification
Chapter 3 Page 51 of 52