1、FN3-12、FN3-12R、FN3-12R/S Series are used in the network of AC 50Hz、6KV or 12KV for breaking or closing load and over-load current. they are also used in breaking and closing no-loading . The switch or no-load transformer and capacitor with KN3 type fuse box. Can cut off short-circuit for protecting switch.
2、They can be equipped with CS3 type and CS2 type handle operating mechanism.
1 、The altitude does not exceed 1000m. 2、The ambient air temperatrue : Max:+40oC. Min:-10oC. 3、The relatire humidity of air not bigger 90% (temperature:25oC) 4、The working situation have no conductivity dust. 5、The working situation have no corrosive gas of effect insulation anddestroy metal. 6、The working situation without violent vibration and striking. 7、The working situation have no explosive danger and fire.
技术参数
Technical parameter
1、负荷开关的基本技术数据应符合下表的规定:
The load switch is suitable for the basic technical parameter (please see the table)
型号
Type
额定电压(KV)
Rated voltage
工作电压(上限)(KV)
Max.working voltage
额定电流(A)
Rated current
动稳定电流(KA)
Machine stabling current
热稳定电流(kA/s)
Heat-stabling current
FN3-12
12
12
400
25
10/2
2、负荷开关所配带的熔断器的型号及数据应符合下表的规定:
The load switch witch fuse box is suitable for the technical parameter (please see the table)