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ZW6-12 Outdoor vacuum breaker
Release time:2015-06-05 22:49 Read:Time



 
●Almost


ZW6-12 Outdoor vacuum breaker is applicable to below 12 kv, three-phase ac 50 hz power system. It is mainly used for rural electric network and city for points and load current, overload current and short circuit current, it also can be used to other similar places, it also can be used as urban grade 12 kv power grid points off the switch.


Operating environment
a. Ambient air temperature: -40℃ to +40℃
b. Altitude: ≤2000m 
c. Average daily levels of relative air humidity isn’t more than95% , monthly average levels of it isn’t more than90%
d. wind pressure :no more than 700 pa(Wind speed:34m/s)
e.  Air polluted degree : level 1V(According to provisions of GB5582 )
f. seismic intensity is no more than 8 degrees


●Model implication



●Main technical parameters
No. Name Unit Date
1 Rated voltage KV 12
2 Rated insulation level power frequency withstand voltage
(1 Min )
Dry KV 42
  Wet(to ground) 34
lightning impulse withstand voltage   75
3 Rated current A 630
4 Rated frequency Hz 50
5 Rated short circuit breaking current KA 12.5 16 30
6 Rated peak with stand current 31.5 40 50
7 Rated peak withstand current 31.5 50 50
8 rated short time current 12.5 16 20
9 operating sequence 次times Open0.3-close&open-180s-close&open
10 Number of rated short circuit breaking   30
11 mechanical life 10000
12 The rated operating voltage with CT spring operating mechanism
 
V DC24 48V AC DC110V 220V
13 The allowable of cumulative thickness mm 3
14 Over current drag button current A 5
15 Weigh Kg 300(Standard)Standard

●Figure chart

 
Last one:CHZ□-12 Ac high voltage automatic reclosing
 
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