Instantaneous Derived Earth Fault; Reference; Operate And Reset Level; Operate And Reset Time - Siemens 7SR10 Argus Series Manual

2.10 50N Instantaneous Derived Earth Fault

2.10.1 Reference

Parameter
Is Setting
t Delay setting
d

2.10.2 Operate and Reset Level

Attribute
I Operate level
op
Reset level
Repeatability
Transient overreach
(X/R ≤ 100)
Variation

2.10.3 Operate and Reset Time

Attribute
t Element basic operate time
basic
t Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
#
The operating timings are measured on the basis of fundamental measurement algorithm, with protection
functions and communication ports configured in the relay.
© 2018 Siemens Protection Devices Limited
-10 °C to +60 °C
f ± 5 %
nom
#
Value
0.05, 0.06...2.5,2.55 ...25.0,25.5.... 50xI
0.00, 0.01...20.00, 20.10... 100, 101... 1000, 1010...
10000, 10100... 14400 s
Value
100 % I , ± 5 % or ± 1 % I
s
≥ 95 % I
op
± 1 %
≤ -5 %
≤ 5 %
≤ 5 %
Value
0 to 2xI : 40 ms, ± 10 ms
s
0 to 5xI : 30 ms, ± 10 ms
s
t + t , ± 1 % or ± 10 ms
basic d
± 1 % or ± 10 ms
< 40 ms
< 57 ms
7SR10 Performance Specification
n
n
Chapter 3 Page 26 of 52