Vue d'ensemble
Le commutateur de charge haute tension CA de type FN7-12DR est un nouveau type de commutateur de charge haute tension intérieur de production de gaz, qui convient au système d'alimentation CA triphasé avec CA 50Hz et tension nominale de 12KV, et qui est utilisé pour couper le courant de charge et fermer le courant de court-circuit.
Principaux paramètres techniques
Rated voltage(KV RMS) |
12 |
Insulation level |
Power frequency 50Hz withstand voltage 1min(KV.Effective value) |
Phase to phase 42 |
Isolation fracture 48 |
Lightning impulse withstand voltage(KV.Peak) |
Phase to phase 75 |
Isolation fracture 85 |
Courant nominal (A) |
400 |
630 |
Rated thermal stable current (KV.Effective value 4S) |
12.5 |
20 |
Rated dynamic stable current(KV.Value) |
31.5 |
50 |
Rated short circuit closing current(KA.Peak) |
31.5 |
50 |
Installation And Use
Normal use conditions:
Ambient air temperature: Upper limit: +40℃ ; Lower limit: 10℃ in general area, -25℃ in high cold area
Altitude: The sea level is 1000m and below
Relative humidity: daily average less than 95%, monthly average less than 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases and water vapor
No frequent violent vibration
Main Specification
Nom |
Modèle |
DS |
DK |
L |
R |
RA |
F |
The ground switch is at the incoming end |
The ground switch is at the outgoing end |
Interlocking device |
Fuse |
Knock out fuse |
Electric brake opening device |
Load switch |
FN7-12 |
– |
|
|
|
|
– |
FN7-12DSL |
△ |
– |
△ |
– |
|
– |
FN7-12DXL |
– |
△ |
△ |
|
|
|
FN7-12R |
– |
– |
– |
△ |
– |
– |
FN7-12DSLR |
△ |
– |
△ |
△ |
– |
– |
FN7-12DXLR |
– |
△ |
△ |
△ |
|
– |
FN7-12RAF |
– |
– |
– |
– |
△ |
△ |
FN7-2DSLRAF |
△ |
– |
|
– |
△ |
△ |
FN7-2DXLRAF |
|
△ |
|
– |
△ |
△ |
Dimensions et dimensions de montage (mm)
