ZHEJIANG XINKOU POWER EQUIPMENT CO.,LTD
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high voltage 12KV vacuum circuit breaker ZN63 VS1-12 fixed type
VS1 indoor high-voltage alternating-current vacuum circuit breaker has a frequency of 50Hz and a rated voltage of 12kv. It applies to the electrical equipement control and protection in industrial and mining enterprises, power plants and substation, particularly to the places needing frequent operation. It can be fixed in a switch cabinet or installed on a handcart.
With stable performance and convenient installation, it is best choice for the control and protection of high-voltage power transmission and distribution systems.
| Item | Description | Unit | Data | |
| 1 | Rated voltage | KV | 12 | |
| Rated frequency | Hz | 50/60 | ||
| 3 | Rated current | A | 630 A | |
| 4 | Rated short-circuit breaking current | kA | 20,25,31.5 | |
| 5 | Rated short-circuit making current(peak value) | kA | 50,63,80,100 | |
| 6 | Rated short-time withstand current | kA | 20,25,31.5 | |
| 7 | Rated withstand current(peak value) | 50,63,80,100 | ||
| 8 |
Rated Insulation level |
Power frequency voltage(when losing a circuit) | KV | Dreaker 42 |
| Impulse withstand voltage(when losing a circuit) | Dreaker 75 | |||
| 9 | Rated operating sequence | OC-0.3s-CO-180S-CO | ||
| 11 | Rated short-circuit duration | s | 4 | |
| 12 | Times of breaking with the rated short-circuit current | Times | 30 | |
| 13 | Mechanical life | Times | 10000 | |
| 14 | Weight | kg | 100 | |