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- Permanent Magnet Mechanism
- 12kV Indoor Vacuum Circuit Breaker
- Integrated Sealed Design
- Suitable for Frequent Switching
- Fixed or Draw-Out Mounting
product details
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Overview
VS1-12 type houschold permanent magnet internal sealed high voltage vacum circuit braker is a thee-phase AC 50Hz rated voltge 12kV indoor switch equipment of power system,as the protection and control of power grid equipment, power equipment of industrial and mining enterprisesCell. Suitable for requiring frequent operation under rated operating current or repeatedly breaking short circuit current.
The circuit breaker adopts an integral design of an actuating mechanism and a breaker body, which can be used as a fixed itallation unit ora special propulsion mechanism to form a
handcart unit.
Technical parameter
NO | Item | Units | Technical parameters | ||||||
1 | Rated voltage | kV | 12 | ||||||
2 | Maximum working voltage | kV | 12 | ||||||
3 | Rated current | A | 630/1250 | 630/1250 | 630/1250/1600 | ||||
4 | Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | ||||
5 | Rated short circuit closing current | kA | 50 | 63 | 80 | ||||
6 | Rated peak withstand current | kA | 50 | 63 | 80 | ||||
7 | 4S rated short circuit withstand current | kA | 20 | 25 | 31.5 | ||||
8
| Rated insulation level | Power frequency withstand voltage | kV
| 42(Fracture:48)
| |||||
Impact withstand voltage |
75(Fracture:84) | ||||||||
9 | Rated operation sequence | 0-0.3s-Co-180s-Co | |||||||
10 | Mechanical life | times | 10000 | ||||||
11 | Rated short circuit current breaking times | times | 50 | ||||||
12 | Operating mechanism rated closing voltage | V | AC/DC 110,220 | ||||||
13 | Operating mechanism rated trip voltage | V | AC/DC 110,200 | ||||||
14 | Moving contactor travel | mm | 11±1 | ||||||
15 | Moving contactor over-travel | mm | 3.5±0.5 | ||||||
16 | Three-phase split and close bounce time | ms | ≤2 | ||||||
17 | Contact closing bounce time | ms | ≤2 | ||||||
18 | Average opening speed | m/s | 1.2±0.2 | ||||||
19 | Average closing speed | m/s | 0.6±0.2 | ||||||
20 | Opening time | Under max operation voltage | s | ≤0.05 | |||||
Under min operation voltage | ≤0.08 | ||||||||
21 | Closing time | S | 0.1 | ||||||
22 | Main loop resistance of each phase | μΩ | 60 | 50 | |||||
23 | Dynamic and static contacts allow wear cumulative thickness | mm | 3 | ||||||
