| Brand | Wone Store |
| Numero sa Modelo | 3-phase Shell type Magnetically controlled vacuum circuit breaker Tres fasa na Shell type nga Magnetically controlled vacuum circuit breaker |
| Naka nga boltahang rated | 12kV |
| Rated Current | 2000A |
| numero ng mga polong | 3P |
| Rated na nga kusog sa pag-abli sa short circuit | 31.5kA |
| Serye | MS5 |
Ang serye ng MS5-12-630/20-XX circuit breakers ay mga indoor switchgear batay sa semi-hard magnetic material actuator mechanisms. Ginagamit ito sa three-phase AC power systems na may rated voltage na 12KV at frequency na 50-60Hz, bilang isang protective at control device. Ito ay partikular na angkop para sa paborito na pag-operate sa rated current o maramihang pag-break ng short-circuit currents. Ang serye ng circuit breaker na ito ay kasama ang circuit breaker at ang drive module.
Ang istraktura ng circuit breaker
Bawat phase ay may isang actuator mechanism, na inilalapat nang perpendicularly at axially sa vacuum interrupter. Ang tatlong excitation coils ay konektado nang parallel. Ang three-phase actuator
mechanisms ay nagpapahayag ng synchronous action sa pamamagitan ng synchronous shaft at sumisiguro na may auxiliary switch position signal output.
Ang vacuum interrupter ay gumagamit ng external bellows, at ang bellows ay gawa sa stainless steel lamination welding process. Ang contact opening distance ay 8mm at ang overtravel ay 2mm. Ang contacts ay disenyo batay sa prinsipyong longitudinal magnetic field arc extinguishing.
Contact pressure spring sa insulating rod upang siguruhin ang maasahan na contact sa pagitan ng moving at static contacts ng VI at na ang related actions ay sumasaklaw sa operational characteristic
requirements.
Ang insulating frame ay gawa ng SMC, na nakapaloob sa upper at lower terminals, operating insulating rods, flexible connections, vacuum interrupters at iba pang components, na naglalaro ng papel ng insulation at support.
Paggamit
Suitable para sa air insulated switchgear.
Teknolohiya parameters
No. |
Item |
Unit |
MS5-07 |
MS5-08 |
MS5-09 |
MS5-10 |
1 |
Rated voltage |
kV |
12 |
12 |
12 |
12 |
2 |
Rated current |
A |
1250 |
1250 |
1600 |
1600 |
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 |
210 |
210 |
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 |
52 |
52 |
52 |
52 |
Sukat
