7SR10 Performance Specification
© 2018 Siemens Protection Devices Limited
Chapter 3 Page 27 of 52
2.11 50SEF Instantaneous Sensitive Earth Fault
2.11.1 Reference
Parameter
Value
Is
Setting
0.005, 0.006,0.010,0.105,… 5.0xI
n
t
d
Delay setting
0.00, 0.01…20.00, 20.10… 100, 101… 1000, 1010…
10000, 10100… 14400 s
2.11.2 Operate and Reset Level
Attribute
Value
I
op
Operate level
100 % I
s
,
±
5 % or
±
1 % I
n
Reset level
≥
95 % I
op
or I
op
- 0.1 % I
n
Repeatability
±
1 %
Transient overreach
(X/R
≤
100)
≤
-5 %
Variation
-10 °C to +60 °C
≤
5 %
f
nom
± 5 %
harmonics to f
cutoff
≤
5 %
2.11.3 Operate and Reset Time
Attribute
Value
t
basic
Element basic operate time
#
0 to 2xI
s
: 35 ms,
±
10 ms
0 to 5xI
s
: 25 ms,
±
10 ms
t
op
Operate time following delay
t
basic
+ t
d
,
±
1 % or
±
10 ms
Repeatability
±
1 % or
±
10 ms
Overshoot time
< 40 ms
Disengaging time
< 50 ms
Variation
f
nom
± 5 %
≤
5 %
#
The operating timings are measured on the basis of fundamental measurement algorithm, with protection
functions and communication ports configured in the relay.
Содержание 7SR10 Argus Series
Страница 1: ...7SR10 Argus Overcurrent Relay Reyrolle Protection Devices ...
Страница 2: ...Siemens Protection Devices Limited 2 ...
Страница 152: ...7SR10 Technical Manual Chapter 4 Page 2 of 78 2018 Siemens Protection Devices ...
Страница 156: ...7SR10 Technical Manual Chapter 4 Page 6 of 78 2018 Siemens Protection Devices ...
Страница 188: ...7SR10 Technical Manual Chapter 4 Page 38 of 78 2018 Siemens Protection Devices ...
Страница 216: ...7SR10 Technical Manual Chapter 4 Page 66 of 78 2018 Siemens Protection Devices ...
Страница 218: ...7SR10 Technical Manual Chapter 4 Page 68 of 78 2018 Siemens Protection Devices ...
Страница 220: ...7SR10 Technical Manual Chapter 4 Page 70 of 78 2018 Siemens Protection Devices ...
Страница 222: ...7SR10 Technical Manual Chapter 4 Page 72 of 78 2018 Siemens Protection Devices ...