| Brand | Wone Store |
| Numero sa Modelo | single-phase Shell type Magnetically controlled vacuum circuit breaker Single-phase na tipo ng Shell na Magnetically controlled vacuum circuit breaker |
| Naka nga boltahang rated | 12kV |
| Rated Current | 1250A |
| Rated na nga kusog sa pag-abli sa short circuit | 31.5kA |
| Serye | MS5 |
Ang MS5-12-630/20-XX series circuit breakers mao ang indoor switchgear batas sa semi-hard magnetic material actuator mechanisms. Ginagamit kini sa three-phase AC power systems nga adunay rated voltage sa 12KV ug frequency sa 50-60Hz, isip protective ug control device. Lisod kini gamiton sa paborito nga operasyon sa rated current o multiple breaking sa short-circuit currents. Kini nga series sa circuit breakers naglakip sa circuit breaker ug ang drive module.
Ang structure sa circuit breaker
Adunay usa ka actuator mechanism alang sa matag phase, nga gisulod perpendicular ug axial sa vacuum interrupter. Ang tatlo nga excitation coils gigamit sa parallel. Ang three-phase actuator
mechanisms makapahimulos sa synchronous action pinaagi sa synchronous shaft ug samantalang mag generate og auxiliary switch position signal output.
Ang vacuum interrupter nagamit og 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 mga contacts gidesinyo batas sa principle sa longitudinal magnetic field arc extinguishing.
Contact pressure spring sa insulating rod aron masigurado ang reliable contact sa pagitan sa moving ug static contacts sa VI ug nga ang related actions compliant sa operational characteristic
requirements.
Ang insulating frame gihimo sa SMC, nga nakaeclipse sa upper ug lower terminals, operating insulating rods, flexible connections, vacuum interrupters ug uban pang components, nagpuyo sa role sa insulation ug support.
Paggamit
Suitable para sa air insulated switchgear.
Teknolohiya parameters
No. |
Item |
Unit |
MS5-25 |
MS4-06 |
1 |
Rated voltage |
kV |
12 |
12 |
2 |
Rated current |
A |
2000 |
2000 |
3 |
Rated power frequency withstand vo tage |
kV |
42 |
42 |
4 |
Rated impulse withstand voltage |
kV |
85 |
85 |
5 |
Rated short circuit breaking current |
kA |
25 |
31.5 |
6 |
Rated peak withstand current |
kA |
63 |
80 |
7 |
Rated short-circuit withstand current |
kA |
25 |
31.5 |
8 |
Duration of short circuit |
s |
4 |
4 |
9 |
Rated frequency |
Hz |
50 |
50 |
10 |
Phase center distance |
mm |
-- |
-- |
11 |
Contact distance |
mm |
8±0.5 |
8±0.5 |
12 |
Over travel |
mm |
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 |
15 |
Different time of closing operation |
ms |
-- |
-- |
16 |
Bouncing time |
ms |
≤2 |
≤2 |
17 |
Inherent opening time(don’t include DM time) |
ms |
5±0.5 |
5±0.5 |
18 |
Different time of opening operation |
ms |
-- |
-- |
19 |
Mechanical operations (CO-cycles) |
Times |
50000 |
50000 |
20 |
Rated short-circuit-breaking current time |
Times |
50 |
50 |
21 |
Number of auxiliary switches |
pcs |
3NO+2NC |
|
22 |
Weight |
kg |
17 |
17 |
Dimension
