Zw8-12d /630 high voltage vacuum circuit breaker on outdoor column 12KV
It used vacuum interrupter, insulator, electric spring operate structure to improve interrupter, open-close frequency without explode and it was a product of convenience operation with good characteristic and practice. The whole structure of this product was made up of three-phase, pipe in-out line, drier air in box and electric spring operate structure was beside the box which can be used in harsh environment. The vacuum interrupter of this product was made up of ceramic cover, cup magnetic contact terminal, cu-cr material which has good cut-off, link short current capability. This product has small size, light weight, beautiful appearance. The vacuum interrupter and insulator pipe was designed compact and output pole was filled with silicon rubber which can be applied for harsh climate and dirty conditions.
Product Details
Vacuum circuit breaker, airinsulated, electric spring operating mecha nism, high-frequency short-cir
cuit breaking, no fire and explosion danger, easy to operate, is a good, practical, strong performance
products. This product is a vacuum circuit breaker ceramic Shell, cup-shaped Longitudinal magnetic
field electrode structure, copper and chromium contact materials, with excellent short-circuit
current breaking and closing ability. The Product is small in volume, light in weight and beautiful in
appearance. The vacuum interrupter insulation support sleeve is compact in design, and the limit
conductive silicone rubber is injected outside, which can adapt to the severe weather.
Conditions of Use
Sea level:≤1000m(if increase the altitude, it will improve 12% every increase 1000m, rated insulator average level increase 12%)；
Ambient air temperature:+40℃,***-35℃；
Wind pressure:not over 700Pa(equals to wind speed 34m/s)；
Amplitude:without frequent convulsion；
Air pollute degree:Ⅲ grades；
Daily different temperature:not over 25℃
Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.
| No. | Item | Unit | Data |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630,1250 |
| 4 | Rated short circuit breaking current | kA | 12.5,16,20,25 |
| 5 | Rated peak withstand current | kA | 31.5,40,50,63 |
| 6 | Rated short time tolerance current(4s) | kA | 12.5,16,20,25 |
| 7 | Rated short circuit opening and closing current | kA | 31.5,40,50,63 |
| 8 | Institution life | time | 10000 |
| 9 | Rated short open circuit current switch frequency | time | 30 |
| 10 | Rated current open circuit frequency | time | 10000 |
| 11 | Power frequency withstand voltage (1min) : phase, ground/fracture | kV | 42/48 |
| 12 | Lightning shock withstand pressure(peak)phase, ground/fracture | kV | 75/85 |
| 13 | Power frequency withstand voltage of the secondary circuit )(1min) | kV | 2 |
| 14 | Net weight | kg | 140 |
·Order instructions:
1. The customer needs provide main parameters of the transformer (input and output voltage, capacity, loss, etc.)
2. Other customer requirements
Package Details:
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