| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Manual Type |
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VS1 vacuum circuit breaker is an advanced high-voltage circuit protection device widely used in power systems. The following are the main features and technical parameters of VS1 vacuum circuit breaker:
Main features
Vacuum arc extinguishing technology: VS1 vacuum circuit breaker adopts unique vacuum arc extinguishing technology, which can cut off fault current in a very short time and effectively protect the safety of power grid.
Compact structure and stable performance: The circuit breaker has a compact structure and is suitable for various harsh environments and usage scenarios. It has the advantages of high reliability, long life and low maintenance cost.
Frequent operation: VS1 vacuum circuit breaker can be operated frequently or interrupt short-circuit current multiple times within the working current range.
Long life and high reliability: The mechanical life can be up to 30,000 times, and the number of short-circuit current interruptions at full capacity can reach 50 times, which is suitable for reclosing operation.
Easy maintenance: Ordinary VS1 vacuum circuit breakers usually only need to clean or lubricate the operating mechanism occasionally, while the pole type adopts solid insulation structure to achieve maintenance-free.
Various installation forms: The installation form in the switch cabinet can be either fixed or withdrawable, and can also be installed on the frame for use.
Intelligent protection function: Some models have intelligent protection function, which can monitor the power grid status in real time and prevent potential failures
| Leakage distance | 508 mm (min) |
| Dry arcing distance | 170 mm (min) |
| Hardness (Shore A) | ≥58 |
| Elongation at break (%) | ≥ 200 |
| Tear strengh (N/mm) | 12.5 |
| Dielectri strength (KV/mm) | ≥18 |
| Nominal system voltage | 11KV |
| Highest system voltage | 12KV |
| Rated continuous current | 630 A |
| Impulse withstand voltage to ground | 75KV |
| Impulse withstand voltage across gaps | 85 KV |
| Dry one-minute power frequency withstand voltage to ground | 28 KV |
| Dry one-minute power frequency withstand voltage across gap | 32KV |
| Mechanical operation: | (Guaranteed )10000 |
| Highest voltage for equipment | 12 KV |
| BIL | 75 KV |
| Phase | 3 |
| Frequency | 50/60 Hz |
| Rated short-circuit level of the ststem(1 second) | 20 KA |
| Withstand Current Tests (KA) peak | 50KA |
| System earthing | 11KV Star point /Neutral solidly grounded at pole (PMT) |
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