This type vacuum interrupter adopts umbrella-shaped ceramic insulating enclosure,low chopping current and W-Cu contact material.It has the advantages of powerful ability of arc extinction,high reliability,long life,small size,no risk of explosion and environmentally friendly.It can be used with the corresponding vacuum load switch,which is widely used in Electric power,mechanism, chemical,metallurgy,mining and other industries.

Overall dimensions

Technical parameters

No. Item Unit Value
1 Rated voltage kV 12
2 Rated current A 630
3 Rated frequency Hz 50
4 Short time power frequency withstand voltage kV 42
5 Rated active load breaking current A 630
6 Rated closed-loop breaking current A 630
7 Rated breaking current of cable charging A 10
8 Rated breaking current of non-load transformer kVA 1600
9 ★Rated breaking current of single capacitor bank A 100
10 Rated mechanical endurance Times 10000
11 Closing force due to bellow and atmosphere N 30±10
12 Force required to hold contacts open at full stroke N 60±20
13 Circuit resistance at lowest rated contact force μΩ ≤200
14 Rated limit erosion mm 1
15 Gas pressure inside vacuum interrupter Pa ≤1×10-3
16 Weight of moving parts kg 0.4
17 Weight of vacuum interrupter kg 1.3
18 Clearance between open contacts mm 5±1
19 Average opening speed m/s 1.1±0.2
20 Contact bouncing duration at closing operation ms ≤2
21 Opening non-simultaneity of three-phase contacts ms ≤5
22 Closing non-simultaneity of three-phase contacts ms ≤2

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