| Chapa | Wone Store |
| Namba ya Modeli | Kigurumi aina ya tatu ya magunyo ya kikaribu yenye kipengele cha kuvutia chenye hewa isi |
| volts maalum | 12kV |
| Mkato wa viwango | 1250A |
| Namba ya Uwiano | 3P |
| Kukutana kasi ya mwisho kwa current ya majanga | 31.5kA |
| Umbali wa mstari | 210mm |
| Siri | MS4 |
Seria ya circuit breakers ya MS4-12-630/20-XX ni switchgear za ndani zilizobuniwa kulingana na mekanizmo ya semi-hard magnetic material. Inatumika katika mifano ya umeme wa AC yenye uwezo wa 12KV na sauti ya 50-60Hz, ikifanya kazi ya kujinzi na kudhibiti. Inafaa sana kwa matumizi mengi kwa uweko wa kiwango au kuvunja mara nyingi ya current za short-circuit. Seria hii ya circuit breakers inajumuisha circuit breaker na moduli wa drive.
Mfumo wa circuit breaker
Kila fasi ina mekanizmo moja, ambayo inaelekezwa kulingana na mstari na kwenye vacuum interrupter. Vitu viwili vya excitation coils vinajulikana kulingana. Mekanizmo ya fasi tatu yanaweza kufanya kazi kwa kiholela kwa kutumia synchronous shaft na pia kutoa signal ya chaguo cha auxiliary switch.
Vacuum interrupter unatumia bellows ya nje, na bellows zinazozalishwa kwa njia ya stainless steel lamination welding. Urefu wa kufungua contacts ni 8mm na overtravel ni 2mm. Contacts zimeundwa kulingana na sera ya longitudinal magnetic field arc extinguishing.
Contact pressure spring juu ya insulating rod ili kuhakikisha kuwa kuna majengo safi kati ya moving na static contacts ya VI na kwamba vitendo vyote vinafikiwa na maagizo ya operational characteristic.
Insulating frame imeundwa kwa kutumia SMC, ambayo inafunga terminals za juu na chini, operating insulating rods, flexible connections, vacuum interrupters na components zingine, kwa ajili ya kuhakikisha insulation na support.
Tumia
MS4-01/02 Inapatikana kwa SF6 gas insulated RMU
MS4-03/04 Inapatikana kwa air insulated switchgear
Data za teknolojia
Namba |
Kipengele |
Uniti |
MS4-01 |
MS4-02 |
MS4-03 |
MS4-04 |
1 |
Uwezo wakati wa kiwango |
kV |
12 |
12 |
12 |
12 |
2 |
Current ya kiwango |
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 |
Muda wa short circuit |
s |
4 |
4 |
4 |
4 |
9 |
Frequency ya kiwango |
Hz |
50 |
50 |
50 |
50 |
10 |
Umbali wa center phase |
mm |
150 |
150 |
210 |
210 |
11 |
Urefu wa contact |
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 |
Cycle ya kiwango ya operation |
- |
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 |
Idadi ya switches za auxiliary |
pcs |
6NO+6NC |
|||
22 |
Weight |
kg |
34 |
34 |
34 |
34 |
Note:Aluminium heat sinks lazima ziongezwe.
Dimension
