high voltage vacuum circuit breaker ZW8-12 630-25 outdoor circuit breaker 12KV
ZW8-12 series outdoor high voltage vacuum circuit breaker is a rated voltage 12KV, three-phase AC 50Hz outdoor high voltage switchgear, mainly used in rural power grid, urban power grid and small power system load current, overload current and short circuit current opening and closing.The overall structure of the product is three-phase common box, three-phase vacuum interrupter is placed in a metal box, and SMC insulation material is used for inter-phase insulation and grounding
insulation, reliable performance, high insulation strength.
Service condition
- Altitude: ≤ 2000m;
- Ambient temperature: -40°C~+40°C
- Wind speed: 34m/s
- Earthquake intensity: ≤8 degree
- Ambient pollution: IV
- Ice thickness: 10mm
- Applicable occasions should be free from inflammables, explosives, corrosives and severe vibrations.
Technical parameter
|
Name |
Unit |
Data |
||
|
12kV |
||||
|
Rated voltage |
KV |
12 |
||
|
Rated current |
A |
630 |
||
|
Rated insulating level |
1min.PF withstand voltage |
dry |
KV |
42 |
|
wet |
34 |
|||
|
Lightning impulse withstand voltage(peak) |
kv |
75 |
||
|
Rated short-circuit breaking current |
KA |
20,25 |
||
|
Rated short-circuit making current (peak) |
KA |
50,63 |
||
|
Rated peak withstand current |
KA |
50,63 |
||
|
4s rated short-time withstand current |
KA |
20,25 |
||
|
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
||
|
Breaking times of rated short-circuit breaking current |
times |
30 |
||
|
Mechanical duration |
times |
10000 |
||
|
Rated voltage of energy storage motor |
V |
DC or AC220,DC110, |
||
|
Rated operation voltage |
V |
DC or AC220,DC110, , |
||
|
Abrasions thickness of contacts |
mm |
3 |
||
|
Rated current of over-current release |
A |
5 |
||
|
Weight |
KG |
120 |
||
