VS1-12 side-mounted type vacuum circuit breaker
- Brand:
- Type: VS1-12
VS1-12 Indoor High Voltage Vacuum Circuit Breaker
Summary
VS1-12 side-mounted type vacuum circuit breaker is a kind of indoor high voltage switch device which is used in the AC Three-phase power system of frequency 50HZ,rated voltage 12KV to be the protection and control unit. Because of the special superiority of vacuum circuit breaker, especially suitable for applications that require frequent operation at rated operating Current or multiple open short-circuit breaking current location. It 1s especially suitable to the place requiring frequent operations.
VS1-12 side-mounted type vacuum circuit breaker adopts fixed installation, which is mainly used in the fixed switchgear. It can be used alone or used in ring network power supply system, box-type variable system and non-standard power supply system to protect and control the Transmission and distribution line.
Technical Specifications
| NO. | Item | Units | Parameters | |||
| 1 | Rated voltage | kV | 12 | |||
| 2 | Rated current | A | 630~1250 | 1250 | 1250 | |
| 3 | Rated short-circuit breaking current | kA | 20 | 25 | 31.5 | |
| 4 | Rated short-circuit closing current | kA | 50 | 63 | 80 | |
| 5 | Rated peak withstand current | kA | 50 | 63 | 80 | |
| 6 | 4S rated short-circuit withstand current | kA | 20 | 25 | 31.5 | |
| 7 | Rated | 1min power frequency voltage | kV | 42 (fracture 48) | ||
| insulation level | Lightning Impulse Withstand voltage (peak) | 75 (fracture 65) | ||||
| 8 | Rated operating sequence | O－ 0.3S-CO-180S-CO | ||||
| 9 | Mechanism life | Times | 10000 | |||
| 10 | Opening times of rated short-circuit breaking current | Times | 50 | |||
| 11 | Rated operator closing voltage(DC) | V | AC/DC 220,110 | |||
| 12 | Rated operator opening voltage(DC) | V | AC/DC 220,110 | |||
| 13 | Clearance between open contact | mm | 11 ± 1 | |||
| 14 | Over-travel( Contact spring compression degree) | mm | 3.5 ± 0.5 | |||
| 15 | Three phase points, closing bounce time | ms | ≤2 | |||
| 16 | Contact closing bounce time | ms | ≤2 | |||
| 17 | Average opening speed | m/s | 1.1 ± 0.2 | |||
| 18 | Average closing speed | m/s | 0.6 ± 0.2 | |||
| 19 | Opening | The highest operating voltage | s | ≤0.05 | ||
| time | The lowest operating voltage | ≤0.08 | ||||
| 20 | Closing time | s | 0.1 | |||
| 21 | Dynamic and static contact allowed to wear a cumulative thickness | mm | 3 | |||
Model Implication
Overall Dimensions
