| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual Type |
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ZW7-40.5 type outdoor high voltage vacuum circuit breaker is the three-phase AC 50Hz outdoor high voltage electrical equipment, suit for control and protection of 20-40.5kV transmission and distribution system; can also be used for sectional circuit breaker and switching capacitor bank occasions; this product can be matched with piecewise controller, reclose device can realize the power system intelligent segmentation, reclose control. And can add the current transformer for measurement and protection. Circuit breaker equipped with spring or electromagnetic actuator, reliable mechanical performance, frequent operation; no fire and explosion danger; circuit breaker conforms to the national standard GB19841989 "AC high voltage circuit breaker" and the International Electrotechnical Commission Standard IEC56, IEC62271-100 "high voltage AC circuit breaker" requirements.
| Item | Unit | Data | ||
| Rated voltage | kV | 12 | 24 | 36 |
| Rated frequency | Hz | 50/60 | ||
| Rated current | A | 400 / 630 | ||
| Rated short-circuit withstand/breaking current | kA | 12.5 | ||
| Rated short-circuit making current (peak) | kA | 31.5 | ||
| Rated peak withstand current | kA | 31.5 | ||
| Rated short-circuit time | Sec | 1 | ||
| Mechanical Operations | Times | 5000 | ||
| Power frequency withstand voltage (1 min) | kV | 28/32 | 50/60 | 70/80 |
| Lightning impulse withstand voltage (peak) | kV | 76/85 | 125/145 | 170/190 |
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