1.Outdoor H.V Vacuum Circuit Breaker 2.50Hz Three-phase alternating current 3.12kV 50Hz Pole Switchgear

NO.	Name				Unit	Parameter
1	Rated Voltage					12
2	Rated insulationlevel	1 min power frequency withstand voltage				Wet:34,Dry:42(positive,negative),48(fracture andisloationclearance)
		Lightningimpulsewithstandvoltage(peak)		earth,phase		75
				insulating fracture		85
3	Rated Current				A	400,63
4	Rated short-circuit breaking current (peak)				KA	12.5,16,20
5	Rated short-circuit closing current (peak)					31.5.40.50
6	Rated dynamic current (rated limit through-current)					31.5,40,50
7	Rated short time withstand current					12.5,16,20
8	Breaking times of rated short-circuit switch-off current				Times	30
9	Rated duration of short-circuit				S	4
10	Rated operating order					O-0.3S-CO-180S-CO
11	Mechanical life				Times	10000
12	Automatic striking and grinding cumulative thickness				mm	3
13	Operating mechanism rated switch-on voltage				V	AC,DC110/220

Temperature condition:a>The ambient temperature: Max:+40°C, Min:-45°C, Max range of day temperature average:25°C;b>The relative humidity: daily average≤95%, montly average≤90%;c>The altitude:≤2000m(if the altitude needs increasing the rated insulating increases correpondingly);d>Amplitude:earthquake degree≤8;e>Wind pressure:≤700Pa(equals to wind speed 34m/s;f>Filth degree:Installation dimensions drawings:

ZW20-12 Intelligent Outdoor Pole Switchgear