product details
product overview
VS1 the circuit breaker is the latest generation 12 carefully designed and developed by zhongheng electric kV vacuum circuit breakers can be widely used in power distribution fields such as power plants, power grids, metallurgy, petrochemicals, and urban infrastructure construction.
VS1 the circuit breaker product specifications are complete and the rated current can reach up to 5000. A, the rated short-circuit breaking current can reach up to 50 kA。
VS1 the circuit breaker adopts a modular spring operating mechanism, which has the characteristics of easier maintenance, faster parts replacement, and more reliable operation.
VS1 the circuit breaker poles adopt convection ventilation technology, combined with an ultra-low resistance vacuum arc extinguisher, which greatly reduces the temperature rise of the vacuum circuit breaker under long-term operation and reduces power loss.
VS1 the circuit breaker has excellent performance in frequent operations or in situations where short-circuit current is broken. the circuit breaker fully meets the requirements of automatic reclosing and has extremely high operational reliability.
VS1 the circuit breaker adopts zhongheng electric's original transmission module design, which has reliable closing and low impact force, so it has a longer service life, with a mechanical life of up to 30,000 times.
VS1 the circuit breaker mechanism adopts advanced surface treatment technology and lubrication technology to improve the anti-rust ability of the product, ensure the reliability of the product during its expected life, and is suitable for hot and humid areas.
VS1 the circuit breaker has passed the complete set GB and IEC standard product type testing and national product identification.
model description
| VS1 | 12 | E | D/S | 630 | 25 | 210 |
▼ | ▼ | ▼ | ▼ | ▼ | ▼ | ▼ |
VS1 vacuum circuit breaker | rated working voltage 12kV | solid sealed pole | D: single spring mechanism S: double spring mechanism | rated operating current 630A 1250A 1600A 2000A 3150A 4000A | rated short circuit breaking current 20kA 25kA 31.5kA 40kA | apart 210mm 275mm |
use environmental conditions
| ambient temperature ① | -15℃~+40℃ |
| average daily temperature | ≤35℃ |
| altitude ② | ≤2000m |
| relative humidity ③ | daily average ≤95%，monthly average ≤90% |
| water vapor pressure value | daily average ≤2.2kPa, monthly average ≤1.8kPa |
| earthquake resistance | the earthquake intensity does not exceed 8 degrees |
| installation place | the surrounding air is not significantly affected by dust, smoke, corrosive and /or pollution from flammable gases, vapors or salt spray |
①when the ambient temperature exceeds +40℃in this case, the rated current value of the circuit breaker needs to be reduced or a fan must be installed to force heat dissipation;
②when the installation location exceeds an altitude of 2000 m , the external insulation strength of the circuit breaker will be reduced;
③when installed in climatic conditions with high humidity or large temperature changes, the circuit breaker needs to be equipped with preventive devices, such as electric heaters.
technical parameters
①please consult the manufacturer for special bead voltage level requirements.
②4000A and above require forced air cooling, or it may depend on the specific conditions of the switchgear.
③rated short circuit breaking current 40 kA or 50 kA the mechanical life is 20,000 times
overall dimensions
