VS1 VCB Vacuum Circuit Breaker
Introducing the VS1 VCB Vacuum Circuit Breaker by Yueqing Liyond Electric Co., Ltd. This three-phase AC, 50Hz indoor power distribution equipment operates at a voltage of 12KV. It is designed for protecting and controlling equipment in power supply and distribution systems, including substations and industrial and mining industries.
Key Features:
- Reliable interlock function
- Capable of frequent operation at rated current
- Can handle multiple operations of breaking short-circuit and fault currents
Product Standards:
- Conforms to national standards GB 1984-2003 HV Vacuum Circuit Breaker
- Complies with IEC62271-100:2001 regulations
Applying Ambient Conditions:
- Ambient temperature: -10ºC to +40ºC
- Ambient humidity: not exceeding 95% daily and 90% monthly
- Earthquake intensity: not exceeding 8 degrees
- Saturated vapor pressure: not exceeding 2.2kPa daily and 1.8kPa monthly
- Height above sea level: up to 1000m
Technical Data:
For detailed technical specifications, please refer to the product documentation provided by Yueqing Liyond Electric Co., Ltd.
| No. |
Name |
Unit |
Data |
| 1 |
Rated voltage |
kV |
12 |
| 2 |
Rated current |
A |
630 |
1000 1250 |
1600 2000 2500 3150 |
| 3 |
Rated short circuit breaking current |
kA |
20 |
25 |
20 |
25 |
31.5 |
31.5 |
40 |
| 4 |
Rated peak withstand current |
kA |
50 |
63 |
50 |
63 |
80 |
80 |
100 |
| 5 |
Rated short time withstand current |
kA |
20 |
25 |
20 |
25 |
31.5 |
31.5 |
40 |
| 6 |
Rated short circuit making current |
kA |
50 |
63 |
50 |
63 |
80 |
80 |
100 |
| 7 |
Switching operations of short circuit current |
times |
50 |
| 8 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO-180s-CO(40KA) |
| 9 |
Mechanical endurance |
times |
10000 |
| 10 |
Rated breaking operations of the rated current |
times |
20000 |
| 11 |
Rated lighting impulse withstand voltage(full wave) |
kV |
75 |
| 12 |
1 min. rated power frequency withstand voltage |
kV |
42 |
| 13 |
Contact stroke |
mm |
9±1 |
| 14 |
Over-travel of contacts |
mm |
3.5±0.5 |
| 15 |
Closing speed |
m/s |
0.4∼0.8 |
| 16 |
Opening speed |
m/s |
0.9∼1.2 |
| 17 |
Contact bouncing duration at closing operation |
ms |
≤2 |
| 18 |
Simultaneity of three phase closing operation |
ms |
≤2 |
| 19 |
Closing time |
ms |
30∼70 |
| 20 |
Opening time |
m/s |
20∼50 |
| 21 |
Distance between phases |
mm |
150, 210, 275 |
| 22 |
D.C component |
|
50% |
Yueqing Liyond Electric Co., Ltd. presents the Vs1-12 Vacuum Circuit Breaker 2023, ideal for indoor use with a rated current of 4000A. Ensure cold wind for optimal performance.
FAQ
Welcome to Yueqing Liyond Electric Co., Ltd.
Q: Could I have prices of your products?
A: Welcome. Please feel free to send us inquiry
here. We will reply you within 24 hours.
Q: Can I get a sample before the bulk order?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q: Can we print our logo/company name on products?
A: Yes, of course, we accept OEM. Kindly provide brand authorization to us.
Q: Do you accept product customization?
A: Yes, of course, please provide specific drawings or parameters, we will quote you after evaluation.
Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment.
Q: What is your Trade Terms?
A: We accept EXW, FOB, CIF, FCA, etc.
Q: What is your payment method?
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc.
Q: Do you inspect the finished products?
A: Yes, each step of production and finished products will be inspected by QC department before shipping. Goods inspection reports will be provided for your reference before shipment.
Q: How to solve the quality problems after sales?
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.
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