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Specifications
1.Voltage: 12KV2.Current: 400A
3.For breaking or closing load and over-load current
4.Fuse can be allocated
FN5-12 Series High Vacuum Indoor Load Break Switch
It is designed and developed by our own company by bringing in international advanced technology, considering our own country's specific power supply. It performances meet IEC420 AC H.V. Load Switch with Fuse(1990 Edition) and GB3804 3-63kV AC H.V. Load Switch after strict test and long - time operating. Compared to the product of the kind in the foreign country, its technical parameter has reached the international level with the featrues of small volume and light weight.can be used in package substation and ring network cebin. It is used widely in 12kV distribution network to protect the equipment against working wihout phase.
The success of the product fills the domestic gap, with functions of switchisolating and earthing.
Use
It is used in the network of 50Hz rated voltage 6-12kV for breaking load, over-load and short-circuit current. It is equipped with CS6-I type handle operating mechanism. It is for the CS handle 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 |
Appearance
Installation Diagram
The Size Diagram of Operating Mechanism
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