| Customization: | Available |
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| Type: | Circuit Breaker |
| Name: | vacuum Circuit Breaker |
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General
ZW32 series outdoor high voltage vaccum circuit breaker is used in three phase power system of AC 50Hz, voltage 12~36KV to switch on/off loading current, it has function of protecting overloading and short circuit meeting the requirement of control and measurement realizing remote control and monitor and so on, it applies to protect and control distribution, industrial enterprises and frequent switching in rural network.
Application voltage levels include: 12kV, 24kV and 36kV.
Application standard: IEC62271-200Service and Installation Conditions
Technical Characteristics
| 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 | 12.5/20 | |||
| Rated short-circuit making current (peak) | kA | 31.5/50 | |||
| Rated peak withstand current | kA | 31.5/50 | |||
| Rated short-circuit time | Sec | 4 | |||
| Rated operating sequence | (O)-0.3s-(CO)-180s-(CO) | ||||
| Mechanical Operations | Times | 10000 | |||
| Rated full load operations | Times | 400 | |||
| Power frequency withstand voltage (1min) | kV | 28/32 | 50/60 | 70/80 | |
| Lightning impulse withstand voltage (peak) | kV | 76/85 | 125/145 | 170/190 | |
| Closing time | ms | 25-50 | |||
| Full breaking time | ms | ≤100 | |||
| Arcing ime | ms | ≤20 | |||
| Mechanical endurance | Time | 10000 | |||
| Rated input power of charging motor | W | 40 | |||
| Rated operating voltage and rated voltage of auxiliary circuit | V | DC200, 110, 24 | |||
| DC220, 110, 24 | |||||
| Charging time at rated voltage | s | ≤10 | |||
| Over-current release | Rated current | A | 50 | ||
| Accuracy of tripping current | % | ±10 | |||
| Mechanical endurance | time | 10000 | |||
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