Technical Data
10-25
7SA6 Manual
C53000-G1176-C156
Figure 10-3
Trip time characteristics of inverse time overcurrent protection, acc. ANSI/IEEE (phases and earth)
DEFINITE INVERSE
D [s]
I
/
I
p
1
2
5
10
15
0.5
1
0.3
0.1
1
2
3
5
10
20
100
20
10
5
2
0.5
0.2
0.05
VERY INVERSE
EXTREMELY INVERSE
D [s]
t [s]
t [s]
I
/
I
p
I
/
I
p
1
2
5
10
15
0.5
D [s]
1
2
5
10
15
0.5
1
0.3
0.1
1
2
3
5
10
20
100
20
10
5
2
0.5
0.2
0.05
[s]
1
2
3
5
10
20
0.3
0.1
100
20
10
2
0.05
5
[s]
0.2
0.5
1
t [s]
3
t
3,922
I I
p
⁄
(
)
2
1
–
---------------------------
0.0982
+
è
ø
ç
÷
æ
ö
D
⋅
=
t
5.64
I I
p
⁄
(
)
2
1
–
---------------------------
0.02434
+
è
ø
ç
÷
æ
ö
D
⋅
=
t
0.4797
I I
p
⁄
(
)
1.5625
1
–
--------------------------------------
0.21359
+
è
ø
ç
÷
æ
ö
D
⋅
=
30
3
3
[s]
30
30
t
Trip time
D
Setting value time multiplier
I
Fault current
I
p
Setting value current
Note:
For earth fault read 3
I
0p
in-
stead of
I
p
and D
3I0p
instead of D
Ip
Содержание siprotec 7SA6
Страница 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Страница 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Страница 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Страница 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Страница 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Страница 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Страница 559: ...Control During Operation 7 45 7SA6 Manual C53000 G1176 C156 2 Figure 7 45 Circuit breaker trip test in DIGSI 4 ...
Страница 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Страница 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Страница 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Страница 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...