++++General:
The 12/24/36kV Cable branch box with switchgear inside apply to AC 50Hz, rated voltage 12/24/36KV, cable inlet and outlet outdoor distribution network, it is widly used in industrial park, the dweller, commercial center and mining, airport, railway,port, power distribution etc distribution network. Especially in urban network reconstruction project.
1.Complete insulated, sealed, no need maintain,reliable safety guarantee
2.Simplify the city grid system, to save investment
3.Outdoortype, dustproof, moisture proof,flood water resistance. corrosion resistance, strong adaptability to environment, flexible combination.
4.Compact structure, beautiful appearance, easy installation, maintainance free, and with electric monitor, short circuit indicator and lightning
5.Small area, low height, coordinate with the surroundings.
++++Sevice environment:
a).Air temperature: maximum temperatur:+40℃; minimum temperature:-25℃
b).Humidity: monthly average humidity 95%; daily average humidity 90%.
c).Altitude above sea level: maximum installation altitude:2500m
d).Ambient air not apparently polluted by corrosive and flammable gas, capor etc.
++++Main technical specifications:
Item | Unit | Parameter |
Rated voltage | kV | 12 | 24 | 36 |
Rated current | kA | 630 |
Frequency | Hz | 50 |
Power frequency withstand voltage | kV | 42 | 55 | 70 |
BIL | kV | 75 | 125 | 170 |
Rated capacity | KVA | 50KVA~20MV |
Crust protection grade |
| IP33 |
Noisy grade | dB | Less than 55 |
Appearance dimensions | mm | Accoding to primary wiring circuit schema |
Main components for options |
Mainl load break switch | type | SC6/SFG | SC6/SFG | SC6-36 |
Earthing switch | type | FN18 | FN18 | FN18 |
Surge arrester | type | HY5W | HY5W | HY5W |
Fuse | type | XRNT | XRNT | XRNT |
Voltage indicator | type | L6 |
VT | type | JDZ |
CT | type | LZZBJ |