| Brand | ROCKWILL |
| Numero sa Modelo | 12/24kV Solid Insulated Metal-enclosed ring main unit 12/24kV Solid Insulated Metal-enclosed ring main unit |
| Naka nga boltahang rated | 12kV |
| Nasodnong peryedyo | 50/60Hz |
| Serye | CKSS |
Ang serye ng CKSS-12/24 ring main unit ay isang metal enclosed switchgear na may insuladong common tank, 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 maraming advanced na teknolohiya at materyales, na may mahusay na elektrikal at mekanikal na katangian, mas kaunti ang epekto ng kapaligiran at klima, maliliit ang sukat, madali ang pag-install, madaling gamitin, walang pangangailangan ng pag-maintain, at maaring mapagtugma nang fleksible. Ang malinaw at direktang disenyo nito ay nagpapatunay ng simple at direkta ang operasyon, ang capacity ng connection ng feeder ay malaki, na angkop sa iba't ibang sistema ng wiring.
Katangian
|
Kod ng unit |
Kalagayan |
|
C |
Pangkaraniwang singil na load break switch unit |
|
F |
Pagsasama ng load break switch ug fuse |
|
V |
Apparatus unit |
|
D |
Cable unit (wala'y switch) |
|
+ |
Gilid nga casing sa busbar |
|
- |
Tugma nga casing sa busbar |
|
SL |
Bus couple unit |
|
M |
Metering unit |
|
PT |
PT unit |
|
1K2(4) |
Double-sleeve outgoing load break switch unit |
Papel Técnico
|
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 :Neutral point earthing system through low resistance
