Outdoor High Voltage Vaccum Circuit Breaker (ZW32-12)

 

NO.	Name				Unit	Parameter
1	Rated Voltage					12
2	Rated insulation level	1 min power frequency withstand voltage				Wet: 34, Dry: 42(positive, negative), 48(fracture and isolation clearance)
		Lightning impulse withstand voltage(peak)		earth, phase		75
				insulating fracture		85
3	Rated Current				A	400, 630
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℃, Min:-45℃, Max range of day temperature average:25℃;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:Ⅳ

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