FZN25 12KV electric three pole vacuum &vacuum with fuse load switch circuit breaker

The main technical parameters:
1 |
Rated voltage |
KV |
12 |
||
2 |
Rated frequency |
Hz |
50 |
||
3 |
Rated current |
A |
630 |
125 |
|
4 |
Rated insulation level |
1min power frequency withstand voltage |
KV |
Arc chute break 30; ground, phase 42; isolation fracture 48 |
|
Lightning impulse withstand voltage |
KV |
Ground, phase 75; isolation fracture 85 |
|||
5 |
Rated dynamic current (peak) |
KA |
50 |
- |
|
6 |
4s thermal stable current |
KA |
20 |
- |
|
7 |
Rated active load breaking current |
A |
630 |
125 |
|
8 |
Rated closed-loop breaking current |
A |
630 |
125 |
|
9 |
Rated cable charging breaking current |
A |
10 |
10 |
|
10 |
Breaking the capacity of the no-load transformer |
KVA |
1250 |
1250 |
|
11 |
Rated short-circuit breaking current |
KA |
- |
31.5 |
|
12 |
Rated transfer current, rated AC current |
A |
- |
2000 |
|
13 |
Fuse type |
- |
SDLAK-12 SFLAJ-12 |
||
14 |
Impactor output energy |
J |
- |
2-5(medium) |
|
15 |
Rated short circuit closing current |
KA |
50 |
||
16 |
Grounding switch rated dynamic current |
KA |
50 |
||
17 |
Grounding switch 2s thermal stable current |
KA |
20 |
||
18 |
Auxiliary circuit rated voltage |
V |
AC/CD220;110 |
||
19 |
Mechanical life |
times |
10000 |






Feature:
1.Unique transmission structure design, small volume and light weight,
2.The interrupter only bears high voltage at the moment of making and breaking.
3.It can realize the one-time operation of isolating fracture and interrupter end fracture
4.There is a grounding valve linked with the grounding switch between the static contact and the moving contact conducting cylinder
5.It is safe and convenient to inspect