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What we can do ? different country different requirement all we can offer.
Mid-voltage ( kV) | 3.6~35kv (E.g. 35,33,24,22,20,18,15.75,13.8,13.2,12,11,10.5,10,7.2,6.6,6.3,6 etc.) |
To Low voltage ( V) | 100-660V (E.g. 100,110,115,120,127,208,200,220,230,240,346,380,400,410,415,440,480,660 etc.) |
Frequency (HZ) | 50Hz or 60Hz |
DFWK Hermetic Fully insulated Cable distribution box
Ⅰ.Application
This product is widely used in urban power power grid transformation, residential areas, commercial centers and other urban power densely populated areas.
Ⅱ.Environmental conditions
1. ambient temperature: maximum temperature + 50℃, minimum temperature - 40℃, maximum daily average temperature no more than 35℃;
2. relative humidity: daily average value shall not exceed 95% and monthly average value shall not exceed 90%;
3. wind speed: no more than 35m / S;
4. pollution level: Level II;
5. seismic intensity: 8 degrees;
6. ground inclination: no more than 3 degrees;
7. installation location: it is installed in a place without fire, explosion or violent vibration, good ventilation and corrosive gas.
Special conditions
8. when the equipment is installed at an altitude of more than 1000m, it needs to be specially noted, so that the company can adjust the SF6 pressure during manufacturing.
9.if special adverse conditions are involved, please consult the company.
Ⅲ.Specification
Item | value |
Rated current | 630A |
Rated Voltage | 12kV |
Lightning impulse voltage | 75kV |
Rated breaking capaity current | 45A |
Rated short-time withstand current | 25kA/4s |
Rated peak withstand current | 50kA |
Rated breaking current | 630A |
Use environment | outdoor |
Power-frequency pressure resistance (phase ground) | 42kv/min |
Rated short circuit open current (peak) | 50ka |
Rated disconnected capacitor current | 45A |
Rated open-inductive current | 16a |
Times of full-load breaks | >100 |
Times of closing machine operations | 2000 |
Optional arrester, short circuit fault indicator, flow limiting fuses, etc. to meet various user requirements. | |
Ⅳ.Typical wiring scheme (mm)
Dfwk-102k one in two branches with one switch 1180 * 1050 * 1600
Dfwk-102k one in three branches with one switch 1250 * 1050 * 1600
Dfwk-104k one in four branches with one switch 1250 * 1050 * 1600
Dfwk-112k one in one out two branches with one switch 1250 * 1050 * 1600
Dfwk-113k one in one out three branches with one switch 1420 * 1050 * 1600
Dfwk-114k with one in one out four branches and one switch 1420 * 1050 * 1600
Dfwk-102k2 one in two branches with two switches 1350 * 1050 * 1600
Dfwk-112k2 one in one out two branch with two switches 1500 * 1050 * 1600
Dfwk-103k3 one in three branches with three switches 1850 * 1050 * 1600
Dfwk-113k3 one in one out three branch with three switches 2000 * 1050 * 1600
Ⅴ. Features
1. Adopt prefabricated electrified and touchable silicone rubber cable head, fully sealed, fully insulated, maintenance-free, and reliable to ensure personal safety
2. The structure is compact, the appearance is small and beautiful, the stainless steel double-layer cabinet, the service life can reach more than 20 years;
3. Under the premise of not affecting the operation of the main network, implement regional power outage maintenance and reduce the power outage scope:
4. One or more SF6 load switches can be equipped. The wiring method is flexible and diverse, and the branch outgoing line can reach up to 8 circuits;
5. Optional lightning arrester, short-circuit fault indicator, current-limiting fuse, etc., to meet various requirements of users.
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