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FN5-12 Series Indoor H.V. Load Switch
FN5-12 Series Indoor H.V. Load Switch

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FN5-12 Series Indoor H.V. Load Switch

FN5-12 Series Indoor H.V. Load 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 inthe network of 50Hz rated voltage 6-12kV for breaking loadover-load and short-circuit current. It is equipped with CS6-I type handle operating mechanism.it is for the CS handle mechanism.

Type meaning

 

Service condition
1The altitude does not exceed 1000m.
2The ambient air temperature:Max.:+40 .Min.:-10 .
3The relatire humidity of air.diaily average ≤ 90%.monthly average ≤ 95% (temperature: 25 ).
4The ambient air should not be obviously polluted by corrosivity and the flammability gas. etc.
5The working sisuation without frequent violent.

Technical parameter

Name

Unit

Pasrameter

   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

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