Siemens 3AH Petunjuk Manual - Halaman 36
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Appendix
Table A-1 b
Type 3AH Circuit Breaker Ratings (New "Constant kAR Rating Basis)
ANSI C37.04-1999
Standard Rating Structure for AC High-Voltage Circuit Breakers
AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis- Preferred Ratings and Related Required Capabilities
ANSI C37.06-2000
ANSI C37.09-1999
Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
ANSI C37.010-1999
Application Guide for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis
Rated Values
Maximum Design Voltage ( V ) ' "
Voltage Range Factor ( K ) "
Power Frequency
Withstand
Voltage Levels
Lightning
Continuous "
)
Short-Circuit ( I
"
�
I nterrupting Time
(Y )
Permissible Tripping Delay
Max. Sym Interrupting ( I )
%
de Component
Short-Time Current ( I ) (3 seconds)
&
Closing
Latching (Momentary)
&
Closing
Latching (Momentary)
Peak ( 2.6 x I )
Footnotes
1. Maxi m u m volta ge for which the circuit breaker is designed, and the upper l i m it for operation.
2. K is l isted for i nformational pu rposes on ly. For circuit breakers rated o n a " kA basis;'the Voltage Range Factor is 1.0.
3. 3000FC indicates that fan cooling may be required i n the switchgear structure to achieve this rating.
4 . A I I values apply to polyphase and l ine-to-line faults.
5. Standard duty cycle is 0 - 0.3sec - CO - 1 5sec - CO.
Units
5-3AH- 5-3AH-
5-3AH-
7-3AH-
40
31
50
4.7 6
kV rms
4.76
4.76
- -
1.0
1.0
1.0
19
kV rms
19
19
kV crest
60
60
60
1200
1200
1200
A rms
2000
2000
2000
3000FC 3000FC 3000FC
kA rms-
40
50
31.5
83
83
83
ms
5
5
5
Cycles
2
2
2
Sec
kA rms-
40
31.5
50
%
47
47
47
40
kA rms
31.5
50
kA rms
62
78
49
kA peak
104
82
130
Circuit BreakerT ype
1 5-
1 5-
1 5-3AH- 1 5-3AH-
3AH-
3AH-
40
25
31
20
8.25
1 5.0
1 5.0
1 5.0
1 5.0
1.0
1.0
1.0
1.0
36
36
36
36
95
95
95
95
1200
1 200
1200
1 200
1200
2000
2000
2000
2000
2000
40
20
25
31.5
83
83
83
83
5
5
5
5
2
2
2
2
40
20
25
31.5
47
47
47
47
40
20
25
31.5
62
39
49
31
52
104
65
82
38-3AH-
1 5-3AH-
31.5
50
40
1 5.0
38.0
1.0
1.0
1.0
36
36
80
95
95
150
1 200
1200
2000
2000
3000FC
40
31.5
50
83
83
83
5
5
5
2
2
2
40
50
31.5
47
47
47
40
50
31.5
62
78
49
104
130
82
36