Knkong Electric Co.,Ltd
Knkong Electric Co.,Ltd
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Product Introduction
12kv outdoor VCB (ZW32 series) spring mechanism outdoor vacuum breaker, a kind of outdoor pillar high voltage vacuum circuit breaker, with 50Hz, three-phase alternating current, and 12 KV rated voltage.
Standards compliant of CCC,ISO9001,CE, CB,IEC60898.
It applies to open circuit, close the load current, overload current and short -circuit current and other power distribution system, such as a substation, industrial and mining.
12KV 630A/1250A ZW32 series VCB for outdoor use, such as power transmission network or substation poles.
Features
Normal service condition
| Altitude | ≤1000m | |
| Ambient temperature | Max | +40℃ |
| Min | -15℃ | |
| Ambient humidity: Maximum average humidity | 24 hour ≤95% | |
| 1 month ≤90% | ||
| Maximum water vapor pressure | 24 hours ≤2.2kpa | |
| 1 month ≤1.8kpa | ||
The ambient air has no obvious pollution of dust smoke, corrosive or combustible gases, steams or smog
12kv Outdoor VCB Technical Parameters
| No. | Items | Unit | Parameter | |
| 1 | Rated voltage | KV | 12 | |
| 2 | Rated current | A | 630 1250 | |
| 3 | Rated frequency | Hz | 50/60 | |
|
4 |
1 minute withstand pressure | Wet | KV | 34 |
| Dry | 42 | |||
| To ground | 49 | |||
|
5 | Lightning shock withstand current phase, to ground | KV |
75/85 | |
| 6 | Rated short-circuit breaking current | KA | 20 25 | |
| 7 | Rated short-circuit closing current | 50 63 | ||
| 8 | Rated peak value of withstanding current | 50 63 | ||
| 9 | 4s short-time withstand current | 20 25 | ||
| 10 | Rated operating sequence | O-0.3s-CO-180s-CO | ||
|
11 | Rated short circuit breaking current breaking times | times |
30 | |
| 12 | Mechanical endurance | 30000 | ||
| 13 | Permanent magnet control voltage | V | AC/DC 220 | |
|
14 | Secondary circuit, 1-minute power frequency withstand voltage | KV |
2 | |
Standard Drawing
