Customization: | Available |
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Breaking Capacity: | High Voltage Circuit Breakers |
Operation: | Energy-storage Type |
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The ZN63A(VS1)-12 Model indoor high voltage 12kV 3 Pole High Voltage Vacuum Circuit Breaker is designed for power systems with a rated voltage of 12kV. It serves as a protective and control unit for power grid and industrial equipment, compatible with switchgear panels such as KYN28(GZS1), XGN, and GG-1A. Related products include isolated handcart, fuse handcart, and voltage transformer handcart.
serial number | project | units | data | |||
1 | The rated voltage | kV | 12 | |||
2 | Rated frequency | Hz | 50 | |||
3 | Rated current | A | 630~1250 | 1250 | 1250 | |
4 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | |
5 | Rated short circuit closing current | kA | 50 | 63 | 80 | |
6 | Rated peak tolerable current | kA | 50 | 63 | 80 | |
7 | 4S rated short circuit resistance current | kA | 20 | 25 | 31.5 | |
8 | Rated insulation level | Power frequency withstand voltage (before and after rated break) | kA | 42 (fracture48) |
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Impact withstand voltage (before and after rated break) | kA | 75 (fracture85) |
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9 | Rated sequence of operation | points-0.3s-us points-180s-us points | ||||
10 | Mechanical life | next |
10000 | |||
11 | Rated short circuit breaking current breaking times | next |
50 | |||
12 | Operating Mechanism Rated Closing Voltage (DC) | V | 110,220 | |||
13 | Rated tripping voltage of operating mechanism (DC) | V | 110,200 | |||
14 | From contact | mm | 11±1 | |||
15 | Overstock (compression length of contact spring) | mm | 3.5±0.5 | |||
16 | Three-phase points, closing bounce time | ms | ≤2 | |||
17 | Contact closing bounce time | ms | ≤2 | |||
18 | Average brake speed | m/s | 1.1±0.2 | |||
19 | Average closing speed | m/s | 0.6±0.2 | |||
20 | Break-brake time | At the highest operating voltage | S | ≤0.05 | ||
At the lowest operating voltage | S | ≤0.08 | ||||
21 | Closing time | S | 0.1 | 50 | ||
22 | Main loop resistance of each phase | μΩ | 60 | |||
23 | Allowable wear cumulative thickness of dynamic and static contacts | mm | 3 |