series of AC high voltage automatic reclosers
This product AC high voltage outdoor intelligent vacuum switchgear rated frequency 50Hz, rated voltage 12KV three-phase. It can replace the circuit breaker column alone; usually with high pressure slicer use together to form an intelligent power system protection features, flexible application of the urban network in the end 10KV substation, power ring road junction or on radial grid power lines, which not only has ZW32-12 vacuum circuit breaker with all the features and benefits, but also according to different protection requirements, flexibly arranged traditional three-current protection and over-current or speed off the anti-time protection.
Recloser reasonably selected according to the different power system protection requirements with the corresponding inverse - second curve, coincides interval reclosing operation parameters such as the number of gates, achieve multiple reclosing lockout and ultimately into the closing state functions to achieve automatic rapid elimination of transient fault, permanent fault isolation purposes segments.
Items |
Unit |
|||
Rated voltage |
kV |
12 |
||
Rated current |
A |
630 |
||
Rated short circuit breaking current |
kA |
20/25 |
||
Rated short circuit making current (peak value) |
50 |
|||
Rated peak withstand current |
50 |
|||
Rated short circuit withstand current |
50 |
|||
Rated short circuit duration |
S |
4 |
||
Rated insulating level |
1 minimum PF withstand voltage |
Phase to phase, to ground 40, fracture 48 |
||
Lightning impolse withstand voltage peak value |
||||
Rated sequence of operations |
O-0.3s-CO-180s-CO |
|||
Rated short circuit current breaking time |
30 |
|||
Mechanical endurance |
10,000 |
|||
Rated operation voltage (opening, closing coil) |
V |
DC220,110 AC220,110 |
||
Moving and fixed contact allowance wearing collation thickness |
mm |
3 |
||
Over-current release nominal current |
5 |
|||
Current transformer ratio |
A |
200/5,400/5 and 600/5 |
||
1 minimum second PF withstand voltage |
mm |
2 |
||
Over current tripping current |
A |
5 |
||
Rated single capacitor bank switching current |
kA |
630 |
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