| Brand | Wone Store |
| Numero sa Modelo | 3-phase Pillar type Magnetically controlled vacuum circuit breaker Tres fasa nga tipo sa Pillar nga magneticamente kontroladong vacuum circuit breaker |
| Naka nga boltahang rated | 12kV |
| Rated Current | 1250A |
| numero ng mga polong | 3P |
| Rated na nga kusog sa pag-abli sa short circuit | 31.5kA |
| Distansya sa pagitan sa mga phase | 210mm |
| Serye | MS4 |
Ang serye ng MS4-12-630/20-XX circuit breakers mao ang indoor switchgear batasado sa semi-hard magnetic material actuator mechanisms. Ginagamit kini sa three-phase AC power systems nga may rated voltage nga 12KV ug frequency nga 50-60Hz, isip protective ug control device. Kini labi ka suitable sa frequent operations sa rated current o multiple breaking sa short-circuit currents. Kini nga serye sa circuit breakers kasama ang circuit breaker ug ang drive module.
Ang structure sa circuit breaker
Kada phase adunay usa ka actuator mechanism, nga gi-install perpendicular ug axial sa vacuum interrupter. Ang tulo nga excitation coils gisulbaran parallel. Ang three-phase actuator
mechanisms makakamit og synchronous action pinaagi sa synchronous shaft ug simultaneously generate auxiliary switch position signal output.
Ang vacuum interrupter nag-usab sa external bellows, ug ang bellows gihimo pinaagi sa stainless steel lamination welding process. Ang contact opening distance mao ang 8mm ug ang overtravel mao ang 2mm. Ang contacts gidesinyo batasado sa principle sa longitudinal magnetic field arc extinguishing.
Contact pressure spring sa insulating rod aron masiguro ang reliable contact sa pagitan sa moving ug static contacts sa VI ug nga ang related actions molihok kon asa operational characteristic
requirements.
Ang insulating frame gihimo sa SMC, nga encloses ang upper ug lower terminals, operating insulating rods, flexible connections, vacuum interrupters ug uban pang components, nag-play og role sa insulation ug support.
Paggamit
MS4-01/02 Suitable for SF6 gas insulated RMU
MS4-03/04 Suitable for air insulated switchgear
Teknolohiya parameters
No. |
Item |
Unit |
MS4-01 |
MS4-02 |
MS4-03 |
MS4-04 |
1 |
Rated voltage |
kV |
12 |
12 |
12 |
12 |
2 |
Rated current |
A |
1250 |
1250 |
1250 |
1250 |
3 |
Rated power frequency withstand voltage |
kV |
42 |
42 |
42 |
42 |
4 |
Rated impulse withstand voltage |
kV |
85 |
85 |
85 |
85 |
5 |
Rated short circuit breaking current |
kA |
25 |
31.5 |
25 |
31.5 |
6 |
Rated peak withstand current |
kA |
63 |
80 |
63 |
80 |
7 |
Rated short-circuit withstand current |
kA |
25 |
31.5 |
25 |
31.5 |
8 |
Duration of short circuit |
s |
4 |
4 |
4 |
4 |
9 |
Rated frequency |
Hz |
50 |
50 |
50 |
50 |
10 |
Phase center distance |
mm |
150 |
150 |
210 |
210 |
11 |
Contact distance |
mm |
8±0.5 |
8±0.5 |
8±0.5 |
8±0.5 |
12 |
Over travel |
mm |
2±0.5 |
2±0.5 |
2±0.5 |
2±0.5 |
13 |
Rated operation cycle |
- |
O-0.3s-CO-15s-CO |
|||
14 |
Inherent closing time(don’t include DM time) |
ms |
< 25 |
< 25 |
< 25 |
< 25 |
15 |
Different time of closing operation |
ms |
≤2 |
≤2 |
≤2 |
≤2 |
16 |
Bouncing time |
ms |
≤2 |
≤2 |
≤2 |
≤2 |
17 |
Inherent opening time(don’t include DM time) |
ms |
5±0.5 |
5±0.5 |
5±0.5 |
5±0.5 |
18 |
Different time of opening operation |
ms |
≤2 |
≤2 |
≤2 |
≤2 |
19 |
Mechanical operations (CO-cycles) |
Times |
50000 |
50000 |
50000 |
50000 |
20 |
Rated short-circuit-breaking current time |
Times |
50 |
50 |
50 |
50 |
21 |
Number of auxiliary switches |
pcs |
6NO+6NC |
|||
22 |
Weight |
kg |
34 |
34 |
34 |
34 |
Note:Aluminum heat sinks need to be added.
Dimension
