| Brand | ROCKWILL |
| Numero ng Modelo | 12/24kV Solid Insulated Metal-enclosed ring main unit 12/24kV Solid na Insulated Metal-enclosed ring main unit |
| Tensyon na Naka-ugali | 12kV |
| Larawan na Pagsasahimpapawid | 50/60Hz |
| Serye | CKSS |
Ang serye ng CKSS-12/24 ng ring main unit ay isang metal na nakakalubog na komon tank na nakakalubog na switchgear, na binubuo ng load break switch unit, load break switch fuse combination electrical unit, vacuum circuit breaker unit, at ang incoming line unit ng bus. Ito ay gumagamit ng sari-saring mahuhusay na teknolohiya at materyales, may mahusay na elektrikal at mekanikal na katangian, mas kaunti ang epekto ng kapaligiran at klima, maliliit ang sukat, madali ang pag-install, madali ang pag-operate, walang pangangailangan ng pagmamanman, at maaaring mapalitan nang maluwag. Ang malinaw at direktang disenyo nito ay nagbibigay-daan sa simpleng at diretang operasyon, malaking kapasidad ng koneksyon ng feeder, angkop para sa iba't ibang mga sistema ng wiring.
Katangian
|
Kodigo ng yunit |
Kahulugan |
|
C |
Pangkaraniwang yunit ng load break switch na may iisang casing |
|
F |
Kombinasyon ng load break switch at fuse |
|
V |
Yunit ng aparato |
|
D |
Yunit ng kable (walang switch) |
|
+ |
Samping na casing ng busbar |
|
- |
Itaas na casing ng busbar |
|
SL |
Yunit ng bus couple |
|
M |
Yunit ng pagsukat |
|
PT |
Yunit ng PT |
|
1K2(4) |
Yunit ng double-sleeve outgoing load break switch |
Papel ng Teknikal
|
ltem |
Unit |
Load break switch unit |
Combination apparatus |
Fuse unit |
|
|
Rated voltage |
kV |
12/24 |
12/24 |
12/24 |
|
|
Rated frequency |
Hz |
50 |
50 |
50 |
|
|
Rated current |
A |
630 |
Depend on rated current of fuse |
630 |
|
|
P.F.withstand voltage (phase to phase.phase to earth) |
kV |
42/65 |
42/65 |
42/65 |
|
|
Ated insulation levels |
P.F.withstand voltage(Across open contacts) |
48/79 |
48/79 |
48/79 |
|
|
P.F.withstand voltage (Control and auxiliary circuit) |
2/2 |
2/2 |
2/2 |
||
|
Lightning impulse withstand voltage (phase to phase, phase to earth) |
75/125 |
75/125 |
75/125 |
||
|
Across open contacts |
85/145 |
85/145 |
85/145 |
||
|
Ogauge pressure test |
— |
Pass |
Pass |
Pass |
|
|
Rated short time withstand current |
kA |
20/4s/20/3s |
— |
20/4s/20/4s |
|
|
Rated peak withstand current |
kA |
63 |
—— |
63 |
|
|
Rated short circuit making current |
kA |
50 or 63 |
Subject to high-voltage fuse |
50 |
|
|
Rated short circuit breaking current |
kA |
— |
Subject to high-voltage fuse |
20/20 |
|
|
Rated transform current |
A |
— |
1750/1400 |
— |
|
|
Rated active load breaking current |
A |
630 |
— |
— |
|
|
Rated Closed loop breaking current |
A |
630 |
— |
630 |
|
|
Mechanical life |
Load break switch/breaker |
Time |
5000 |
5000 |
10000 |
|
Isolating switch/earthing switch |
5000 |
5000 |
5000 |
||
|
Loop resistance |
μΩ |
≤120 |
— |
≤120 |
|
|
Inflation pressure |
Rated inflation pressure(absolute pressure) |
bar |
1.3 |
1.3 |
1.3 |
|
Minimum inflation pressure(absolute pressure) |
1.2 |
1.2 |
1.2 |
||
|
Relative rate leakage of gas |
% |
≤0.02 |
≤0.02 |
≤0.02 |
|
Pahayag: l : Sistemang pagsasakonek ng neutral point sa lupa sa pamamagitan ng mababang resistansiya
