Breaking Capacity: | High Voltage Circuit Breakers |
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Operation: | Electric Type |
Speed: | Normal Type Circuit Breaker |
Samples: |
high quality ,accept customization
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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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Suppliers with verified business licenses
summarize
In recent years, with the continuous expansion of China's urban power grid and the rapid growth of electricity load, while aiming at the characteristics of long power supply lines and large line losses in rural power grids, the original 10KV voltage grade distribution has been difficult to meet the power supply requirements, and gradually exposed its power supply distance is too large, high line loss rate, voltage quality is difficult to meet the requirements and other weaknesses. The use of 20kv voltagedistribution grade power supply is an inevitable trend of development, it is imperative.
Main technical parameters
Number | Project | Unit | numerical value | ||
1 | rated voltage | KV | 24 | ||
2 | rated current | A | 630,1250 | ||
3 | rated frequency | HZ | 50 | ||
4 | power frequency withstand voltage | Dry test | KV | 60/65 | |
Wet test | 48 | ||||
5 | lightning impulse withstand voltage | KV | 95/125 | ||
6 | Rated short-circuit breaking current | KA | 20 | 25 | |
7 | Rated short-circuit closing current | KA | 50 | 63 | |
8 | Rated peak withstand current | KA | 50 | 63 | |
9 | 4S short-time withstand current | KA | 20 | 25 | |
10 | Rated operating cycle | Minute -0.3s- combined minute -180s- combined minute | |||
11 | The number of times the rated short circuit current is broken | next | 30 | ||
12 | mechanical life | next | 10000 | ||
13 | Secondary circuit 1min power frequency voltage | KV | 2 |
1. who are we?
Suppliers with verified business licenses