ABB VD4 Series - Vacuum Interrupter Switching Operations Limits

8 ABB Power Distribution
Breaking current I (kA)
Number of operations n
10
8 8
6
4
3
2
10
5
8
6
4
3
2
4
10
8 8
6
4
3
2
3
10
8
6
4
3
2
2
10
8
6
5
0.05 0.1 0.2 0.3 0.4 0.6 0.8
1 2 3 4 6 8 10 20 30 40 60
1250 A
1600 A
2000 A/
2500 A
Rated
current
a
Figure 2/2: Main Dimensions
Note:
Lifting lug T and handling unit TE only fitted for handling. Remove and
store prior to commissioning.
GA = Tested terminal zone
T = Lifting lug
TE = Handling unit (required for movement on rollers 50.8)
TW = Partition, if specifically ordered
= Earthing conductor connection – use contact washer
a) Circuit-breaker type VD4, 36 kV,
Rated short-circuit breaking current 25 kA
b) Circuit-breaker type VD4, 36 kV,
Rated short-circuit breaking current 31.5 kA
Figure 2/1: Permissible number of vacuum interrupter operating cycles n as a function of the breaking current I
a
1000
360
360
920 + 5
390
260
405
60
435
445
555
1374
1228
900
328
516
200
M12
45
35
A
A
E - Cu bar 80 x 100
DIN 46433
M12
max. 22 deep
40
98
1575
40
View A
Terminal face
TE
GA
T
TE
T
TW
Breaking current I (kA)
a
10
8 8
6
4
3
2
10
5
8
6
4
3
2
4
10
8 8
6
4
3
2
3
10
8
6
4
3
2
2
10
8
6
5
0.05 0.1 0.2 0.3 0.4 0.6 0.8
1 2 3 4 6 8 10 20 30 40 60
Number of operations n
1250 A
1600 A
2000 A/
2500 A
Rated
current