Breaking Capacity: | High Voltage Circuit Breakers |
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Operation: | Electric Type |
Speed: | Normal Type Circuit Breaker |
Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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Payment Method: | |
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Initial Payment Full Payment |
Currency: | US$ |
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Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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ZW43-12 series outdoor high-voltage vacuum circuit breakers are outdoor high-voltage switchgear with rated voltage of 12kV and three-phase ac of 50Hz. It is mainly used for load current, overload current and short circuit current of power system. It is suitable for substation, industrial and mining enterprises and urban and rural distribution network for protection and control, especially for the frequent operation of the site and the city network automation distribution network. Meet thefollowing standards: GB/T1984 high voltage ac circuit breaker, GB/T11022 common technical requirements for high voltage switchgear and control equipment, D1402 ac high-voltage circuit breaker ordering technical conditions.
Item | Unit | Technical parameters | |
Contact open distance | mm | 40.5 | |
Contact overstroke | mm | 50/60 | |
Opening speed | m/s | 630/1250/1600 | |
Closing speed | m/s | 20/31.5 | |
Contact closing bounce time | ms | 63/80 | |
Interphase center distance | mm | 20 | |
Three-phase opening and closing are not identical | ms | 25/4 31.5/4 | |
Resistance of each phase conducting circuit | uΩ | O~0.3-COS-180S-COS | |
Closing time | ms | 10000 | |
Opening time | ms |
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