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FN5-12 Series High voltage Indoor Load Break Switch
Published in2018-08-04
4639 ViewsDetailed description
FN5-12 Series High voltage Indoor Load Break Switch
Product description
It is designed and developed by our own company with international advanced technology, considering our own country's specific power supply. It performances meet IEC420 standard ( AC "H.V. Load Switch with Fuse(1990 Edition)" and GB3804 standard (3-63kV AC H.V. Load Switch). After strict test and long - time operating it is evidenced its performances are higher than same products out of China and all technical parameters have reached international levels, having some good features that are small volume and light weight. It also can be used in package substation and ring main units, widely used in 12kV distribution network for breaking load, over-load and short-circuit current and protecting equipment from operation without phase by its functions of switch isolating and earthing. It is equipped with CS6-I type handle operating mechanism.
Service condition
1. The altitude does not exceed 1000m.
2. The ambient air temperature:Max.:+40 .Min.:-10 .
3. The relatire humidity of air diaily average ≤ 90%, monthly average ≤ 95% (temperature: 25 ).
4. The ambient air should not be obviously polluted by corrosivity and the flammability gas. etc.
5. The working sisuation without frequent violent.
Technical parameter
|
Name |
Unit |
Parameter |
|
Rated voltage |
kV |
12 |
|
Max. working voltage |
kV |
12.7 |
|
Rated frequency |
Hz |
50 |
|
Rated current |
A |
400 630 |
|
Rated short-time withstand current |
kA/s |
12.5/4 20/2 |
|
Rated peak withstand current |
kA |
31.5 50 |
|
Rated short-circuit switch-off current |
A |
400 630 |
|
Rated power load switch -off current |
A |
400 630 |
|
5% rated power load switch-off current |
A |
20 31.5 |
|
Rated capacity switch-off current |
A |
10 |
|
Rated inductance switch-off current |
A |
40 |
|
Rated transfer current |
kA |
1.3 |
|
1min power frequency withstand voltage to groundinterphase/isolation break |
kV |
12/48 |
|
Lighting impulse resisting voltage (peak) to groundinterphase/isolation break |
kV |
75/85 |
Installation Diagram
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FN5-12 Series High voltage Indoor Load Break Switch