TDFW-12 Outdoor high voltage sub-section post
Function and characteristics
1 Use predictive type electric touch silicone rubber cable head, fully sealed, fully insulated, maintenance-free, reliable guarantee of personal safety;
2 Compact structure, small and beautiful appearance, double stainless steel box, the service life can be more than twenty years.
3 Without affecting the operation of the main network. Realize area blackout maintenance. Reduce the range of power outages;
4 It can be equipped with one or more SF6 load switches. The connection mode is flexible and diverse, the branch can reach up to eight times at most.
5 Optional arrester, short-circuit fault indicator, current-limiting fuse, etc., to meet various user requirements.
6 Widely used in urban power grid transformation, residential areas, commercial centers and other urban densely populated areas.
Technical parameter
|
Serial No. |
Name |
Unit |
|
1 |
Rated voltage |
12KV |
|
2 |
Rated current |
630A |
|
3 |
Power frequency withstand voltage(phase) |
42KV/1min |
|
4 |
Lightning impulse voltage |
75KV |
|
5 |
Rated breaking current |
630A |
|
6 |
Rated short-circuit breaking current (peak) |
50KA |
|
7 |
Rated short-time tolerant current |
20KA/4S |
|
8 |
Rated peak withstand voltage |
50KA |
|
9 |
Rated breaking capacitance current |
45A |
|
10 |
Rated breaking inductance current |
16A |
|
11 |
Full load start times |
>100 |
|
12 |
Number of Opening and Closing mechanical operations |
2000 |
