VSM-12 series permanent magnetic operating mechanism is a three-phase AC 50Hz, rated voltage of 12kV indoor switchgear. As a professional vacuum circuit breaker manufacturer, our company with its own research and development of permanent magnetic actuator for industrial and mining enterprises, power generation and substation facilities as electrical control and protection purposes. The product has high reliability and long life characteristics, especially suitable for frequent operation, repeatedly breaking conditions, such as short-circuit current of the place.
| Item | Unit | Data | ||||||
| Rated Voltage | kV | 12 | ||||||
| Rated Current | A | 630 | 1000, 1250 | 1600, 2000, 2500, 3150 | ||||
| Rated short circuit breaking current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| Rated peak withstand current | kA | 50 | 63 | 50 | 63 | 80 | 80 | 100 |
| Rated short-time withstand current | kA | 20 | 25 | 20 | 25 | 31.5 | 31.5 | 40 |
| Rated short circuit closing current | kA | 25 | 63 | 25 | 63 | 80 | 80 | 100 |
| Breaking times of short circuit current | times | 50 | 30 | |||||
| Rated operating sequence | O-0.3s-CO-180s-CO, O-180s-CO-180s-CO(40kA) | |||||||
| Mechanical life | times | 30000(small current) 20000(heavy current) | ||||||
| Breaking times of rated current | times | 30000(small current) 20000(heavy current) | ||||||
| Rated lightning impulse withstand voltage (full wave) | kV | 75 | ||||||
| Rated short-time power frequency withstand voltage | kV/min | 42 | ||||||
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