Original
By certification 
Indoor side-mounted High Voltage Vacuum Circuit Breaker
ZN63-12 Type side mounted type vacuum circuit breaker is indoor high voltage switch equipment is applicable to rated voltage 12 kV, frequency 50Hz three-phase power system, as the protection and control of electrical use, due to the special advantages of vacuum circuit breakers, especially for applications that require frequent operation rated current, or multiple short-circuit breaking current place.
VS1-12 Type side mounted type vacuum circuit breaker adopts fixed installation, mainly for fixed switch, the circuit breaker can be used alone, but also for ring network power supply, box variant or non-standard power supply system.
Number |
Project |
Unit |
Data |
|||
1 |
Rated Voltage |
KV |
12 |
|||
2 |
Maximum working voltage |
KV |
12 |
|||
3 |
Rated Current |
A |
630-1250 |
630-1600 |
630-1600 |
|
4 |
Rated short circuit breaking current |
KA |
20 |
25 |
31.5 |
|
5 |
Rated short –circuit current |
KA |
50 |
63 |
80 |
|
6 |
Rated peak withstand current |
KA |
50 |
63 |
80 |
|
7 |
4S rated short-circuit withstand current |
KA |
20 |
25 |
31.5 |
|
8 |
Rated insulation level |
Frequency voltage (rated breaking before and after) |
KV |
42(Fracture 84) |
||
Impulse withstand voltage (rated breaking before and after) |
75(Fracture 48) |
|||||
9 |
Rated operating sequence |
All sub-sub -0.3S-sub-180s-Hop |
||||
10 |
Mechanical life |
Times |
10000 |
|||
11 |
Rated short-circuit current breaking times |
Times |
50 |
|||
12 |
Rated operating mechanism closing voltage(DC) |
V |
AC,DC 110,220 |
|||
13 |
Actuator voltage of the floodgate (DC) |
V |
AC,DC 110,220 |
|||
14 |
Contact opening distance |
mm |
11±1 |
|||
15 |
Overtravel (the length of contact spring compression) |
mm |
3.5±0.5 |
|||
16 |
Three-phase points, closing phase of the different |
ms |
≤2 |
|||
17 |
Contact closing bounce time |
ms |
≤2 |
|||
18 |
Average opening speed |
m/s |
0.9~1.2 |
|||
19 |
Average closing speed |
0.5~0.8 |
||||
20 |
Tripping time |
Maximum operating voltage |
S |
≤0.05 |
||
Minimum operating voltage |
≤0.08 |
|||||
21 |
Closing time |
S |
0.1 |
|||
22 |
The main circuit resistance of each phase |
uΩ |
630≤50 1250≤45 1600≤40 |
|||
23 |
Cumulative thickness of the wear contact allows movement |
mm |
3 |
|||
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