VS1 Vacuum Circuit Breaker
The VS1 type indoor high voltage vacuum circuit breaker produced by ROOQ ELECTRIC GROUP has reliable interlocking function, can carry the frequent operation, and has the ability of multiple interruptions and rapid reclosing. The circuit breaker is a unified whole composed of the operating mechanism and the front and rear arrangement of the arc extinguishing chamber. It can be used as a fixed installation unit or as a separate handcart with the chassis car.
Technical data
1. Mechanical parameters
No. | Name | Unit | Data | |||
1 | Clearance between open contacts | mm | 11±1 | |||
2 | Over travel of moving contact | 3.5±0.5 | ||||
3 | Three poles asynchronous time at opening | ms | ≤2 | |||
4 | Moving contact bounce time at closing | ≤2 | ||||
5 | Open time | 20-50 | ||||
6 | Close time | 30-70 | ||||
7 | Average opening speed | m/s | 0.9~1.2 | |||
8 | Average closing speed | 0.6~0.8 | ||||
9 | Connecting pressure of close contacts | N | 20kA | 25kA | 31.5kA | 40kA |
2000 | 2400 | 3100 | 4250 | |||
10 | Accumulative abrasion depth allowed of fixed and moving contacts | mm | 3 | |||
2. Main technical data of VCB
No. | Name | Unit | Technical Data | |||
1 | Rated voltage | kV | 12 | |||
2 | Rated power frequency withstand voltage | 42/48（rms） | ||||
3 | Rated lightning impulse withstand voltage | 75/85（peak） | ||||
4 | Power frequency withstand voltage of secondary circuit | kV | 2 | |||
5 | Rated frequency | Hz | 50 | |||
6 | Rated current | A | 630 | 630 | 1250 1600 | 1250 |
7 | Rated breaking current | kA | 20 | 25 | 31.5 | 40 |
8 | Rated short time withstand current | 20 | 25 | 31.5 | 40 | |
9 | Rated peak withstand current | 50 | 63 | 80 | 100 | |
10 | Rated short circuit making current | 50 | 63 | 80 | 100 | |
11 | Rated capacitors bank making current | 12.5 ( frequency not more than 1000Hz ) | ||||
12 | Rated breaking current of single / back to back capacitor bank | A | 630/400（800/400 for 40kA） | |||
13 | Rated short circuit duration | s | 4 | |||
14 | Mechanical endurance | Times | 20000 | |||
15 | Breaking times of rated current | 20000 | ||||
16 | Breaking times of rated short circuit current | 50/30（40kA） | ||||
17 | Rated operation sequence | O - 0.3 s – CO - 180 s - CO | ||||
18 | Rated operation voltage | V | AC110/220 DC110/220 | |||
19 | Normal voltage range of trip coil | 65%～120% rated operation voltage | ||||
20 | Normal voltage range of close coil | 65%～120% rated operation voltage | ||||
21 | Normal voltage range of charging motor | 85%～110% rated operation voltage | ||||
22 | Rated power of trip and close coil | w | 220 | |||
23 | Rated power of charging motor | 75 | ||||
24 | Charging time | s | ≤10 | |||
