2.19 64H Restricted Earth Fault Protection
2.19.1 Reference
Parameter
Is
Setting
t
Delay setting
d
2.19.2 Operate and Reset Level
Attribute
I
Operate level
op
Reset level
Repeatability
Transient overreach
(X/R ≤ 100)
Variation
2.19.3 Operate and Reset Time
Attribute
t
Element basic operate time
basic
t
Operate time following delay
op
Repeatability
Overshoot time
Disengaging time
© 2018 Siemens Protection Devices Limited
-10 °C to +60 °C
f
± 5 %
nom
Value
SEF Input 0.005, 0.006 ... 0.100, 0.105 ... 0.950xI
0.05, 0.055.... 0.95xI
EF Input
0.00, 0.01...20.00, 20.10... 100, 101... 1000, 1010...
10000, 10100... 14400 s
Value
100 % Is, ± 5 % or ± 1 %xI
95 % I
, ± 5 % or ± 0.1 %xI
op
± 1 %
≤ -5 %
≤ 5 %
≤ 5 %
Value
0 to 2xI
, 45 ms, ± 10 ms
s
0 to 5xI
, 35 ms, ± 10 ms
s
t
+ t
, ± 1 % or ± 10 ms
basic
d
± 1 % or ± 10 ms
< 40 ms
< 50 ms
7SR10 Performance Specification
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n
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Chapter 3 Page 44 of 52