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High voltage Indoor Vacuum circuit breaker  Handcart type VCB

High voltage Indoor Vacuum circuit breaker Handcart type VCB

VS1 (ZN63) high voltage indoor vacuum circuit breaker is a cutting-edge electrical device designed to ensure safe and efficient power distribution in high voltage systems. Equipped with a permanent magnetic operating mechanism, this circuit breaker utilizes a vacuum arc extinguishing chamber, where vacuum serves as both the arc extinguishing and insulation medium. When the live operation of the VS1-12 vacuum circuit breaker is initiated, the dynamic and static contacts within the operating mechanism create a vacuum arc between them. Additionally, the unique structure of the contacts generates an appropriate longitudinal magnetic field within the contact gap. This causes the vacuum arc to assume a diffusion form and enables it to uniformly distribute across the contact surfaces, maintaining a low arc voltage. As the current naturally crosses zero, the residual ions, electrons, and metal vapors rapidly recombine or deposit on the contact surfaces and shield, restoring the dielectric strength of the arc extinguishing chamber. Consequently, the arc is extinguished, achieving the desired breaking effect. The utilization of a magnetic field to control the vacuum arc empowers the VS1 vacuum circuit breaker with a robust and stable breaking current capacity. In summary, the VS1 (ZN63) high voltage indoor vacuum circuit breaker possesses advanced features that allow for efficient and reliable power distribution in high voltage applications. By utilizing vacuum technology and a magnetic control mechanism, this circuit breaker ensures the safe interruption of electrical currents, presenting itself as an excellent choice to safeguard various electrical installations and systems.

Model:VS1 ZN63 series vacuum circuit breaker

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Product Description


The VS1 (ZN63) high-voltage indoor vacuum circuit breaker is a state-of-the-art electrical device that has been specifically designed to provide safe and efficient power distribution in high-voltage systems. With its advanced features and cutting-edge technology, this circuit breaker offers unparalleled performance and reliability.

One of the key features of the VS1 vacuum circuit breaker is its permanent magnet operating mechanism. This mechanism ensures smooth and reliable operation by utilizing the power of magnets. Combined with the vacuum arc extinguishing chamber, the VS1 circuit breaker is able to effectively interrupt electrical current without causing any damage or disruption to the system.

The vacuum arc extinguishing chamber is an integral part of the VS1 circuit breaker. It serves not only as an arc extinguishing medium but also as an insulating medium. When the circuit breaker is activated, a vacuum arc is initiated between the movable and static contacts in the operating mechanism. The unique structure of the contacts creates a longitudinal magnetic field within the contact gap, which helps to diffuse the arc and distribute it evenly over the contact surface. This, in turn, helps to keep the arc voltage low, ensuring safe and efficient operation.

When the current naturally crosses zero, residual ions, electrons, and metal vapor quickly recombine or deposit on the contact surfaces and shields. This restores the dielectric strength of the arc quenching chamber, extinguishing the arc and achieving the required breaking effect. This innovative use of magnetic field control gives the VS1 circuit breaker a strong and stable current breaking capability, making it highly reliable and efficient in its operation.

The VS1 (ZN63) high-voltage indoor vacuum circuit breaker is ideal for a wide range of applications. It can be used to protect various electrical installations and systems, including power plants, substations, industrial facilities, and more. This circuit breaker ensures safe interruption of electrical current, preventing any potential damage or malfunction in the system. Its high performance and reliable operation make it an excellent choice for any high-voltage application.

In conclusion, the VS1 (ZN63) high-voltage indoor vacuum circuit breaker is a technologically advanced and highly reliable electrical device. With its permanent magnet operating mechanism and vacuum arc extinguishing chamber, it offers efficient and safe power distribution in high-voltage systems. Whether used in power plants, substations, or industrial facilities, the VS1 circuit breaker guarantees the interruption of electrical current without causing any harm to the system. Choose the VS1 (ZN63) high-voltage indoor vacuum circuit breaker for superior performance and peace of mind.


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