With a rated voltage of 12kV,three phase AC frequency of 50Hz, draw out type vacuum circuit breaker can be a flexiable unit to protect line equipment with short-circuit situation or frequent operations.
Product Details
Fields of application
1 - Transformers and distribution substations 2 - Generator control and protection
3 - Capacitor bank control and protection, etc
Main characteristics
No.
project
unit
DATE
1
The rated voltage
kv
12
2
Rated short-time frequency withstand voltage
42
3
Rated lightning impulse withstand voltage
75
4
Rated frequency
HZ
50
5
Rated current
A
630
630
630
630
1250
1600
1600
2000
1250
1250
1600
2000
2000
2500
2500
3150
2500
3150
3150
4000
4000
6
Rated short circuit breaking current
KA
20
25
31.5
40
50
7
Rated short-time withstand current
20
25
31.5
40
50
8
Rated short circuit duration
S
4
9
Rated peak withstand current
kA
50
63
80
100
125
10
Rated short circuit closing current
50
63
80
100
125
11
A single rating/Back to back capacitor bank breaking current