HLVP-12 series side-mounted vacuum circuit breaker is a indoor high voltage switchgear.It applies to a three phase power system under rated voltage 12KV and rated frequency 50Hz as a protective and control appliance.Because of the special superiority of vacuum circuit breaker,it is especially suitable for a site needs frequent operation or cut-off short circuit current many times under a rated current.
HLVP-12 series side-mounted vacuum circuit breaker adopts fixed installation.It is mainly used in fixed switch cabinet.The circuit breaker can be used independently, and can be also used for ring power supply, box transformer or various non-standard power supply systems.
NO. |
ITEM |
UNIT |
DATA |
|||
1 |
Rated voltage |
KV |
12 |
|||
2 |
Rated current |
A |
630/1250 |
630/1250 |
||
3 |
Rated short-circuit breaking current |
KA |
25 |
31.5 |
||
4 |
Rated short-circuit closing current |
KA |
63 |
80 |
||
5 |
Rated peak-resistant current |
KA |
63 |
80 |
||
6 |
4S Rated short-time withstand current |
KA |
25 |
31.5 |
||
7 |
Rated insulation level |
Power frequency withstand voltage (rated before and after breaking) |
KV |
42(Fracture 48) |
||
Impulse withstand voltage (rated before and after breaking) |
KV |
75(Fracture 84) |
||||
8 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
|||
9 |
Life |
Times |
10000 |
|||
10 |
Rated short-circuit breaking current breaking frquency |
Times |
50 |
|||
11 |
Rated closing voltage of operating mechanism(DC) |
V |
110,220 |
|||
12 |
Rated opening voltage of operating mechanism(DC) |
V |
110,220 |
|||
13 |
Contact distance |
mm |
11±1 |
|||
14 |
Overtravel(Contact spring compression length) |
mm |
3.5±3.5 |
|||
15 |
Three phase opening/closing bounce time |
ms |
||||
16 |
Contact closing bounce time |
ms |
≤2 |
|||
17 |
Average opening speed |
m/s |
0.9-0.12 |
|||
18 |
Average closing speed |
m/s |
0.4-0.8 |
|||
19 |
Opening time |
Max. operating voltage |
s |
≤0.05 |
||
Min. operating voltage |
s |
≤0.08 |
||||
20 |
Closing time |
s |
0.1 |
|||
21 |
Circuit resistance of each phase |
μΩ |
50 |
|||
22 |
The accumulated thickness that allows wear of moving/fixed contact |
mm |
3 |