| 
 
NO.
 
 | 
 
Items
 
 | 
 
Unit
 
 | 
 
Data
 
 | 
||
| 
 
FN12-12D/630
 
 | 
 
FN12-12(R)D/630
 
 | 
||||
| 
 
1
 
 | 
 
Rated voltage
 
 | 
 
KV
 
 | 
 
12
 
 | 
||
| 
 
2
 
 | 
 
Rated frequency
 
 | 
 
Hz
 
 | 
 
50
 
 | 
||
| 
 
3
 
 | 
 
Rated Current
 
 | 
 
A
 
 | 
 
630
 
 | 
 
1250
 
 | 
|
| 
 
4
 
 | 
 
Lightning impulse withstand voltage
 
 | 
 
KV
 
 | 
 
To earth and phase to phase 75, isolation fracture 85
 
 | 
||
| 
 
5
 
 | 
 
1 min power frequency withstand voltage
 
 | 
 
KA
 
 | 
 
To earth and phase to phase 42, isolation fracture 48
 
 | 
||
| 
 
6
 
 | 
 
Rated thermal stability current
 
 | 
 
KA
 
 | 
 
20(4s)
 
 | 
||
| 
 
7
 
 | 
 
Rated dynamic current
 
 | 
 
KA
 
 | 
 
50
 
 | 
||
| 
 
8
 
 | 
 
Rated dosing current (peak)
 
 | 
 
KA
 
 | 
 
50
 
 | 
 
50
 
 | 
|
| 
 
9
 
 | 
 
Rated short circuit breaking current (Expected value)
 
 | 
 
KA
 
 | 
 | 
 
31.5
 
 | 
|
| 
 
10
 
 | 
 
Maximum at critical breaking current
 
 | 
 
A2S
 
 | 
 
According to the fuse characteristic curve
 
 | 
||
| 
 
11
 
 | 
 
Minimum breaking current
 
 | 
 
KA
 
 | 
 
According to the fuse characteristic curve
 
 | 
||
| 
 
12
 
 | 
 
Rated transfer current
 
 | 
 
KA
 
 | 
 | 
 
1.5
 
 | 
|
| 
 
13
 
 | 
 
Maximum breaking current (reference value)
 
 | 
 
KA
 
 | 
 
1.8
 
 | 
||
| 
 
14
 
 | 
 
Breaking the capacity of the no-load transformer
 
 | 
 
KVA
 
 | 
 
1250
 
 | 
||
| 
 
15
 
 | 
 
Rated cable charging current
 
 | 
 
A
 
 | 
 
10
 
 | 
||
| 
 
16
 
 | 
 
Rated active load current breaking times
 
 | 
 
Times
 
 | 
 
>100
 
 | 
||
| 
 
17
 
 | 
 
The impactor touches the load switch opening time
 
 | 
 
S
 
 | 
 | 
 
>0.06
 
 | 
|
| 
 
18
 
 | 
 
Earthing switch thermal stability current
 
 | 
 
KA
 
 | 
 
20(2S)
 
 | 
||
| 
 
19
 
 | 
 
Earthing switch thermal stability current (peak)
 
 | 
 
KA
 
 | 
 
50
 
 | 
||
| 
 
20
 
 | 
 
Motor operating power supply voltage
 
 | 
 
V
 
 | 
 
AC DC 110, 220
 
 | 
||