Welcome to SENHENGLI ELECTRIC CO.,LTD
Function Characteristic
DFW-12 use the prefabricated live touching cable joint , full sealed , fully insulated, maintenance free . can keep the personal safe , tight structure , The appearance is small and beautiful , stainless steel double layer box body , the life span more than 20 years .
It can do the maintenance but do not affect the main network operation .
It can equip one or more sets of SF6 switch disconnector , flexible wiring mode , the branch line out can be 8 circuit .
It can equip with the lightning arrester , Short-circuit fault indicator , current limit fuse , satisfy kinds of the requirements .
Regular Working Conditions
Ambient temperature : -45 ℃ ~ +45 ℃
The sea level height not above 2500m
Relative humidity : Daily average not exceed 95% , Monthly average not exceed 90%
The installation environment shall be without obvious filth, no explosive or corrosive gas and dust The installation site shall be free of violent shock.
DFW technical parameters
|
No |
Descriptions |
Parameters |
|
1 |
Rated Voltage |
12KV |
|
2 |
Rated Current |
630A |
|
3 |
Power frequency withstand voltage (phase earthing) |
42KV/min |
|
4 |
Lightning impact voltage |
75KV |
|
5 |
Rated breaking current |
630A |
|
6 |
Rated short circuit switching current ( peak ) |
50kA |
|
7 |
Rated short time withstand current |
25kA/4S |
|
8 |
Rated peak withstand current |
50kA |
|
9 |
Rated breaking capacitance current |
45A |
|
10 |
Rated breaking inductance current |
16A |
|
11 |
Full load breaking times |
> 100 |
|
12 |
switching mechanical manipulations times |
2000 |
Alibaba
