| Customization: | Available |
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| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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Product Overview:
The VSM-12 vacuum circuit breaker integrates a permanent magnet operating mechanism and a vacuum interrupter in a front-and-rear configuration. The breaker features a draw-out type design with a fixed arc-extinguishing column (solid sealing poles) and is designed for high reliability and performance in demanding electrical environments.
Key Features:
Permanent Magnet Operating Mechanism: The advanced permanent magnet operating mechanism ensures smooth, reliable operation, minimizing mechanical wear and maximizing performance throughout the breaker's service life.
Vacuum Interrupter: The vacuum interrupter is housed in a fixed arc-extinguishing column, designed to protect the interrupter from external influences, while ensuring consistent insulation performance and reliability.
Draw-out Type Design: The vacuum circuit breaker adopts a draw-out type structure, making installation, maintenance, and inspection more convenient. This design provides flexibility for users to remove or replace the breaker without disturbing the entire system.
Solid Sealing Poles: The vacuum interrupter is mounted in a solid-sealed arc-extinguishing column, which protects the interrupter from dust accumulation and physical damage. The solid sealing design also enhances durability and ensures stable performance in harsh conditions.
Durability in Harsh Environments: The fixed arc-extinguishing column and vacuum interrupter are designed to perform well in humid, hot, and polluted environments. This structure ensures that the breaker maintains excellent insulation performance, even in adverse conditions.
Applications:
This vacuum circuit breaker is suitable for medium-voltage electrical systems, offering protection and control in power generation, distribution, and industrial facilities. It is particularly effective in environments where dust, humidity, and high pollution levels are common.
Main technical parameters
Table 1. Technical parameters
| No. | Item | 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 closing current | kA | 25 | 63 | 25 | 63 | 80 | 80 | 100 |
| 7 | Breaking times of short circuit current | times | 50 | 30 | |||||
| 8 | Rated operating sequence | O-0.3s-CO-180s-CO,O-180s-CO-180s-CO(40kA) | |||||||
| 9 | Mechanical life | times | 30000(small current) 20000(heavy current) | ||||||
| 10 | Breaking times of rated current | times | 30000(small current) 20000(heavy current) | ||||||
| 11 | Rated lightning impulse withstand voltage (full wave) | kV | 75 | ||||||
| 12 | Rated short-time power frequency withstand voltage | kV/min | 42 | ||||||
Table 2.Parameters of circuit breakers with capacitors
| No. | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2,≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤22 |
| 8 | Opening time | ms | ≤20 |
| 9 | Energy storage loop supply voltage | V | 110,220 |
| 10 | Energy storage loop current | A | ≤0.5(Before the capacitor is full),≤0.01(After the capacitor is full) |
| 11 | Energy storage time | s | ≤10,First charge time≥30 |
| 12 | Closing control voltage | V | 110,220 |
| 13 | Opening control voltage | V | 110,220 |
| 14 | Closing control current | A | 0.2 |
| 15 | Opening control current | A | 0.2 |
| 16 | Main loop resistance | μΩ | ≤60(630A),≤45(1250A),≤30(2000A above) |
| 17 | Phase distance | mm | 210,275(40kA) |
Table 3.Parameters of circuit breakers with capacitors
| No. | Item | Unit | Specification |
| 1 | Travel of the contact | mm | 11±1 |
| 2 | Over-travel of the contact | mm | 3.5±0.5 |
| 3 | Closing speed | m/s | 0.6±0.2 |
| 4 | Opening speed | m/s | 1.1±0.3 |
| 5 | Contact closing bounce time | ms | ≤2,≤3(40kA) |
| 6 | Three-phase contact closing and opening synchronization | ms | ≤2 |
| 7 | Closing time | ms | ≤75 |
| 8 | Opening time | ms | ≤65 |
| 9 | Energy storage loop supply voltage | V | DC220-DC240V(From DC screen) |
| 10 | Energy storage circuit closing current | A | 35<I<55(Small current) |
| 11 | Energy storage circuit opening current | A | 10<I<20 |
| 12 | Energy storage circuit closing time | ms | ≤60 |
| 13 | Energy storage circuit opening time | ms | ≤25 |
| 14 | Closing control voltage | V | 110,220 |
| 15 | Opening control voltage | V | 110,220 |
| 16 | Closing control current | A | 0.2 |
| 17 | Opening control current | A | 0.2 |
| 18 | Main loop resistance | μΩ | ≤60(630A),≤45(1250A),≤30(2000A the above) |
| 19 | Phase distance | mm | 210,275(40kA) |
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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, then need you to 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 came out inspection by QC department before shipping. And we will provide goods inspection reports 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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