户外高压真空断路器 12kV
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Description
户外高压真空断路器 12kV
Summary and Technical Parameter:
ZW32-12 series pillar type outdoor Vacuum circuit breaker is a kind of outdoor H.V switch equipment with 50Hz three-phase alternating current and rated voltage 12kV. It apply to break and close the load current, overload current and short-circuit current in cities and country power distribution system
| NO. | Name | Unit | Parameter | ||
| 1 | Rated Voltage | 12 | |||
| 2 | Rated insulation level | 1 min power frequency withstand voltage | Wet:34,Dry:42(positive,negative),48(fracture and isolation clearance) | ||
| Lightning impulse withstand voltage(peak) | earth,phase | 75 | |||
| insulating fracture | 85 | ||||
| 3 | Rated Current | A | 400,63 | ||
| 4 | Rated short-circuit breaking current (peak) | KA | 12.5,16,20 | ||
| 5 | Rated short-circuit closing current (peak) | 31.5.40.50 | |||
| 6 | Rated dynamic current (rated limit through-current) | 31.5,40,50 | |||
| 7 | Rated short time withstand current | 12.5,16,20 | |||
| 8 | Breaking times of rated short-circuit switch-off current | Times | 30 | ||
| 9 | Rated duration of short-circuit | S | 4 | ||
| 10 | Rated operating order | O-0.3S-CO-180S-CO | |||
| 11 | Mechanical life | Times | 10000 | ||
| 12 | Automatic striking and grinding cumulative thickness | mm | 3 | ||
| 13 | Operating mechanism rated switch-on voltage | V | AC,DC110/220 | ||
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户外高压真空断路器 12kV
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