FN5-12 Series High voltage Indoor Load Break Switch

FN5-12 Series High voltage Indoor Load Break SwitchProduct descriptionIt is designed and developed by our own company with international advanced technology, considering our own country's specific power supply. It performances meet IEC420 standa

Published in2018-08-04

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Detailed 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