VS1-12 Indoor High-Voltage Vacuum Circuit Breaker
VS1-12 indoor high-voltage vacuum circuit breaker, also known as ZN63A-12 indoor high-voltage vacuum circuit breaker. This vacuum circuit breaker is used for indoor switching equipment in 3-10KV AC 50Hz power system. It is used as power grid equipment and power equipment for industrial and mining enterprises. protection and control unit. Due to the advantages of this vacuum circuit breaker, it is especially suitable for frequent operations requiring rated operating current, or places where short-circuit currents are broken multiple times. The VS1 indoor high-voltage vacuum circuit breaker adopts two types of operating mechanisms: spring mechanism and permanent magnet mechanism. It can be used as a fixed installation unit or as a special propulsion mechanism to form a handcart unit.
This vacuum circuit breaker is used for indoor switching equipment of 12KV power system, as a protection and control unit for power grid equipment and power equipment of industrial and mining enterprises.
Due to the advantages of this vacuum circuit breaker, it is especially suitable for frequent operations requiring rated operating current, or places where short-circuit currents are broken multiple times.
There are two types of operating mechanisms: spring mechanism and permanent magnet mechanism. It can be used as a fixed installation unit or as a special propulsion mechanism to form a handcart unit.
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project |
unit |
data |
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|
20KA |
25KA |
31.5KA |
40KA |
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|
Rated voltage |
KV |
12 |
||||
|
Maximum working voltage |
KV |
12 |
||||
|
Rated current |
A |
630-1250 |
630-1250 |
630-2000 |
1250-4000 |
|
|
Rated short circuit breaking current |
KA |
20 |
25 |
31.5 |
40 |
|
|
Rated short circuit making current |
KA |
50 |
63 |
80 |
100 |
|
|
Rated peak withstand current |
KA |
50 |
63 |
80 |
100 |
|
|
4S rated short circuit withstand current |
KA |
20 |
25 |
31.5 |
100 |
|
|
Rated insulation level |
Construction period withstand voltage (before and after rated break) |
KV |
42(fracture 48) |
|||
|
Impact withstand voltage (before and after rated breaking) |
75(fracture 84) |
|||||
|
Rated operating sequence |
Minute-0.3s-Total minute-180s-Total minute |
|||||
|
Mechanical life |
Times |
20000 |
||||
|
Rated short circuit breaking current breaking times |
Times |
50 |
||||
|
Rated closing voltage of operating machinery (DC) |
V |
AC/DC 110/220 |
||||
|
Rated voltage of operating machinery (DC) |
V |
AC/DC 110/220 |
||||
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Contact spacing |
mm |
11±1 |
||||
|
Overtravel (contact spring compression length) |
mm |
3.5±0.5 |
||||
|
Different phases of three-phase opening/closing |
ms |
≤2 |
||||
|
Contact closing bounce time |
ms |
≤2 |
||||
|
Average opening speed |
m/s |
0.9-1.2 |
||||
|
average closing speed |
m/s |
0.5-0.8 |
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|
Opening time |
ms |
20-60 |
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|
Split time |
ms |
≤70 |
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|
Main circuit voltage of each roller |
(μΩ) |
630≤50 1250≤45 |
1600-2500≤40 |
3150≤35 |
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|
Allowable cumulative wear thickness of dynamic and static contacts |
mm |
30 |
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Tel：+86 15538537280
Email：lycnelectric@163.com
Add：No. 9 Duyu Street, Luolong District, Luoyang City, Henan Province
