- Rated voltage:12KV
- Rated current:630A-1250A
- Rated short circuit breaking current:20KA
- Rated short circuit current:50KA
- 4S rated short-circuit withstand current:20KA
- Mechanical Life:20000 Times
- current breaking times:50
- closing time:0.1
- contact opening distance:11+1
- average closing speed:0.5M/S
- Type:Vacuum
- Poles Number:3
- Place of Origin:CN;ZHE
- Brand Name:YUFENG
- Model Number:ZN63(VS1)-12KV VD4
VD4 circuit breaker, high voltage vacuum circuit breaker details listed as belows:
1.Ambient temperature: not higher than +40 °C, not less than -40°C
2. Altitude: not exceed 2000m.
3. Relative humidity: daily average of not more than 95%, month average of not more than 90%.
saturated vapor pressure daily average of not more than 2.2 × 103MPa, month average not more than 1.8 × 103MPa.
4. Earthquake intensity: not more than eight.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Adopt solid insulation structure, use of advanced solid epoxy sealing technology, the first time, the vacuum interrupter. A leading electrical circuit. insulation and other support to become an integrated combination of solid seal pole. Successfully from a fundamental solution of the vacuum breaker gas environment, tolerance issues, make it more broad. Integrated solid-pole closure of the fluent use of a self-ventilation technology, cleverly solved the structure of solid insulation caused by heat dissipation.
(Technical Drawings)
| NO. | Item | Unit | Data | ||
| 1 | Rated voltage | KV | 12 | ||
| 2 | Rated frequency | Hz | 50 | ||
| 3 | Rated lightning impulse withstand voltage(peak) | KV | 75 | ||
| 4 | Rated short-time power frequency voltage(1 min) | KV | 42 | ||
| 5 | Rated current | A | 6301250 | 6301250 | 1250160020002500 |
| 6 | Rated short circuit breaking current | KV | 20 | 25 | 31.5 |
| 7 | Rated short circuit making current(peak) | KV | 50 | 63 | 80 |
| 8 | Rated short circuit duration | 4 | |||
| 9 | Rated operating sequence | S | O-0.3s-CO-180s-CO 0-180s-CO-180s-CO(40KA) | ||
| 10 | Rated single /back to back capacitor bank breaking currrent | A | 630/400 | ||
| 11 | Rated short circuit current breaking time | Times | 30 | ||
| 12 | Opening time | ms | 35~70 | ||
| 13 | Closing time | ms | 20~50 | ||
| 14 | Mechanical life | Times | 10000 | ||
| 15 | Rated energy storage and operating voltage | V | AC220/110DC220/110 | ||
| 16 | Contact stroke | mm | 11±1 | ||
| 17 | Contact overtravel | mm | 3.5±0.5 | ||
| 18 | Average closing speed | m/s | 0.5~0.8 | ||
| 19 | Average opening speed | m/s | 0.9~1.2 | ||
| 20 | Contact closing bounce time | ms | ≤2 | ||
| 21 | Three-phase opening,closing asynchronous | ms | ≤2 | ||
| 22 | The main circuit resistance | μΩ | ≤50(630A)≤45(1250A)≤35(1600~2000A)≤25(MORE THAN 2500) | ||
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory with more than 20 years experience in this field.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days
if the goods are not in stock, it is according to quantity.
Q:Do your company have a website ?
A:Please check :www.cnyufeng.cn
Q: What is your terms of payment ?
A: Payment=500USD, 30% T/T in advance ,balance before shippment.
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